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TLS805B1LDV50XUMA1 - 50mA, 42V LDO Regulator 5V Fixed | Infineon
The Infineon TLS805B1LDV50XUMA1 is a 50 mA linear voltage regulator (LDO) with a fixed 5.0 V output, housed in a 10-pin PG-TSON-10 exposed-pad package. It operates over a wide 2.75 V to 42 V input range with a typical dropout of 100 mV at 50 mA and an ultra-low quiescent current of 5.5 µA, with an off-mode current below 1 µA. The OPTIREG linear family targets automotive and industrial applications requiring always-on supply rails with minimal standby drain. An LDO (low-dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage is only slightly above the output. LDOs sit in the broader power management hierarchy: LDO → linear regulator → voltage regulator → power management IC → semiconductor. They are preferred over switching regulators in noise-sensitive analog and RF rails because they introduce no switching ripple and require only small input/output capacitors. Key features include a 5.5 µA typical quiescent current that supports permanently-powered ECUs, 100 mV typical dropout at full 50 mA load that extends headroom for cold-crank automotive transients, integrated output current limit, thermal shutdown, and an Enable pin for power sequencing. The PG-TSON-10 package with exposed pad achieves a low thermal resistance suitable for continuous 50 mA operation. Architecturally, the TLS805B1 uses a bipolar pass element with internal bandgap reference and uses the exposed thermal pad as both the die substrate connection and the primary heat dissipation path. The wide VIN tolerance and automotive-grade qualification make it robust against load-dump transients up to 42 V. The output is fixed at 5.0 V with ±2 % accuracy across the full operating temperature range. Typical applications include automotive body and chassis ECUs, industrial sensor supplies, IoT battery-powered nodes, and standby rails in microcontroller systems. The low IQ makes it especially suitable for CAN/LIN transceivers that must remain active when the main ECU is asleep. Designers should place a 1 µF X7R ceramic bypass capacitor within 5 mm of the input and output pins, and solder the exposed pad to a copper pour of at least 50 mm² to keep the junction temperature below the 150 °C shutdown threshold. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical layout notes that supplement the official Infineon datasheet for engineer-facing evaluation.
TLS805B1SJVXUMA1 - 50mA, 42V Ultra-Low IQ LDO | Infineon
The Infineon TLS805B1SJVXUMA1 is a 50 mA automotive-grade LDO linear regulator with a wide 2.75 V to 42 V input range, ultra-low 5 µA quiescent current, and an adjustable output voltage of 1.2 V to 5.0 V (also available as 3.3 V and 5.0 V fixed variants in the family), housed in an 8-pin PG-DSO surface-mount package. It belongs to Infineon's OPTIREG Linear family and targets automotive supply systems, including body electronics, sensors, and always-on battery rails where low quiescent current is critical to preserve standby battery life. The device withstands 42 V load-dump transients, features a typical 60 dB PSRR at 100 Hz, and provides integrated protection such as current limit and overtemperature shutdown, enabling robust operation in harsh automotive environments. An LDO (Low-Dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage is very close to the output voltage, distinguished from standard linear regulators by the small headroom (dropout) they require to regulate. LDOs are a subclass of linear regulators, which sit inside the broader category of voltage regulators and the power-management IC (PMIC) family. LDO regulators are valued for their simplicity, low noise, low quiescent current, and absence of switching EMI, making them ideal for noise-sensitive analog and battery-powered applications. Key features of the TLS805B1SJV include a typical quiescent current of only 5 µA in normal operation, output current up to 50 mA, low dropout voltage suitable for cold-crank conditions, and an adjustable output version plus fixed 3.3 V and 5.0 V members of the same TLS805B1 family. The part is AEC-Q100 qualified for automotive use and operates across the -40 °C to +125 °C junction temperature range. The 8-pin PG-DSO package offers compact PCB integration with adequate thermal performance for the modest 50 mA current level. Technically, the TLS805B1SJV uses a PNP pass-element topology that enables low dropout behavior and stable regulation across the full input range. The ultra-low quiescent current is achieved through bias-current management circuits, ensuring that even in always-on battery systems the regulator contributes negligible drain. The wide input range is engineered to survive 42 V automotive load-dump events without external protection, simplifying BOM and reducing system cost. Typical applications include automotive body control modules, sensor supply rails, always-on battery-powered systems, body and chassis ECUs, and standby rails for infotainment. The wide input range and load-dump robustness also make it suitable for industrial 24 V supply systems and any application where the regulator must survive large transient input voltages. When designing with the TLS805B1SJV, ensure that the input capacitor and output capacitor meet the datasheet minimum ESR requirements and are placed as close as possible to the IC pins. For low-IQ always-on applications, account for the quiescent current contribution to total system standby power, especially in designs targeting sub-100 µA total sleep current. This page synthesizes distributor pricing, drop-in alternatives drawn from the same Infineon OPTIREG family, and practical design considerations not always collected in a single place in the manufacturer datasheet.
TLS810A1LDV33XUMA1 - 100mA, 3.3V Automotive LDO | Infineon
The Infineon TLS810A1LDV33XUMA1 is a 100 mA automotive-grade low-dropout (LDO) linear voltage regulator in a 10-pin PG-TSON (PG-TSON-10-2) package with exposed pad, delivering a fixed 3.3 V output from a wide 2.75 V to 42 V input range. It is part of Infineon's OPTIREG linear family and is qualified to AEC-Q100, making it suited for harsh automotive environments including 12 V and 24 V board-net transients. Key headline parameters include a typical quiescent current of 5 uA (some Infineon collateral quotes 10 uA IQ / 15 uA I_Q-supply - see _validation_note), a typical dropout of 250 mV at 100 mA load, integrated output current limit, and overtemperature shutdown. What is an LDO? A low-dropout linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input-to-output voltage differential is small (the "dropout"). LDOs sit in the broader hierarchy of voltage regulators within power management ICs: LDO -> linear regulator -> voltage regulator -> power management IC -> semiconductor. Unlike a switching converter, an LDO does not switch current; it dissipates (VIN - VOUT) x IOUT as heat, which trades efficiency for low noise and a small PCB footprint. Key differentiating features of the TLS810A1LDV33XUMA1 are its ultra-low 5 uA quiescent current (suitable for always-on battery nodes), 42 V wide input range (covers 24 V truck-board net and load-dump transients), and AEC-Q100 qualification with integrated protective functions (current limit, overtemperature shutdown). The PG-TSON-10-2 package with exposed thermal pad provides low thermal resistance, helping dissipate the (VIN-VOUT) x IOUT loss at higher VIN. The wide VIN also allows the same part to serve body-control modules, sensor supplies, and post-buck point-of-load rails. The TLS810A1 uses a bipolar pass-element architecture with internal bandgap reference and an error amplifier trimmed for tight line/load regulation. The combination of low IQ and a 42 V input enables direct connection to the unsuppressed vehicle bus while sustaining standby power budgets measured in single-digit microamps - critical for quiescent-current-sensitive ECUs and ISO 26262 functional-safety architectures. Typical applications include automotive body electronics, ECU standby rails, sensor and actuator power supplies, HVAC controllers, gateway modules, and any 12 V/24 V board-net point-of-load requiring 3.3 V at up to 100 mA. It is also well-suited as a post-DCDC clean-up regulator downstream of a switching pre-regulator where low ripple on a 3.3 V logic rail is required. A primary design consideration is power dissipation: at VIN=12 V, VOUT=3.3 V, IOUT=100 mA the part dissipates ~0.87 W, which the PG-TSON-10-2 EP can handle with adequate copper. Always size the input capacitor for the rated VIN ripple and place it close to the VIN pin to suppress transients. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
TLS810B1LDV33XUMA1 - 100mA, 42V Ultra-Low Quiescent LDO | Infineon
The Infineon TLS810B1LDV33XUMA1 is a 3.3 V fixed-output, ultra-low quiescent-current linear voltage regulator (LDO) delivering up to 100 mA of output current from a 2.75 V to 42 V input range, housed in a 10-pin PG-TSON package with an exposed thermal pad. It is part of Infineon's OPTIREG LINEAR family and is qualified for automotive applications per AEC-Q100. An LDO (Low-Dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage approaches the output voltage, with the dropout being the minimum VIN - VOUT headroom needed to keep regulation. Within the broader taxonomy, the TLS810B1LDV33 belongs to the category: LDO -> linear regulator -> voltage regulator -> power management IC -> semiconductor. Its purpose is to convert a noisy, wide-range supply (such as an automotive 12 V or 24 V bus) into a clean, low-noise rail for downstream microcontrollers, sensors, and CAN/LIN transceivers. Key features include a typical quiescent current of 5.5 uA (load-independent over most operating conditions), 60 dB PSRR at 100 Hz, and an enable pin that supports power-sequenced shutdown. The regulator integrates reverse-polarity, over-voltage, over-current, overtemperature, and ESD protection, making it robust against the harsh transients present in automotive power nets. A low-ESR ceramic output capacitor is sufficient for stability. Technically, the device uses a P-channel pass architecture with an internal precision bandgap reference. The wide 42 V maximum input voltage covers load-dump events on 12 V automotive buses without requiring external TVS protection, and the 250 mV typical dropout at 100 mA allows the regulator to maintain 3.3 V even during cold-crank when VIN drops near 4 V. The exposed-pad TSON-10 package offers a low thermal resistance path to the PCB copper pour. Typical applications include automotive body and chassis ECUs, sensor supplies (e.g., for parking or pressure sensors), CAN/LIN transceivers, and always-on battery-backed microcontrollers. The wide VIN range also suits industrial 24 V bus systems and any point-of-load that must survive large input transients. When designing with this part, place input and output ceramic capacitors as close as possible to the IC pins and provide a sufficient ground copper pour tied to the exposed pad. The enable pin allows sequenced power-up in multi-rail systems, which is essential for processors that require specific rail sequencing. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TLS810B1LDV50XUMA1 - 5V 100mA Ultra-Low Iq LDO | Infineon
The Infineon Technologies TLS810B1LDV50XUMA1 is a 5 V fixed-output, 100 mA ultra-low quiescent current LDO linear regulator in a 3.3 mm × 3.3 mm leadless TSON-10 package with improved optical inspection. It accepts a wide 2.75 V to 42 V input range, delivers a regulated 5.0 V output, and consumes only 5.5 µA of quiescent current. Dropout is 200 mV (typical) at 100 mA load, supporting cold-crank and load-dump scenarios in 12 V/24 V automotive systems. An LDO (Low-Dropout) linear regulator is a member of the linear regulator family that maintains a stable output voltage when the input voltage approaches the output voltage. Within the broader taxonomy, an LDO is a sub-class of linear regulator, which itself is a sub-class of voltage regulator, which belongs to the power management integrated circuit category. Infineon's OPTIREG LINEAR family of LDO regulators targets always-on, battery-tolerant applications where quiescent current directly determines standby energy budget. The TLS810B1 is part of this OPTIREG LINEAR family, specifically optimized for automotive quiescent-sensitive loads such as body controllers, CAN transceivers and sensor nodes. Key features include a 5.5 µA typical quiescent current at light load, 100 mA continuous output current, and an enable input for power sequencing. Internal protection circuitry includes thermal shutdown, output current limiting, and reverse-polarity protection, making the device robust against typical automotive fault conditions. The wide 42 V transient input rating enables survival of load-dump pulses on 12 V automotive buses without external TVS clamps. Technically, the TLS810B1 uses a PNP pass architecture, which delivers inherently low dropout voltage and predictable line/load regulation across the entire input voltage range. The output stage is fully protected against 45 V load-dump transients, and the internal reference achieves ±2 % output voltage accuracy over the full -40°C to +150°C automotive Grade 1 junction temperature range. The TSON-10 package exposes a thermal pad that directly couples the die to PCB copper, supporting 100 mA continuous operation at elevated ambient temperatures. Typical applications include automotive body electronics (always-on ECU rails after ignition-off), CAN/LIN transceiver supply, interior lighting controllers, HVAC sensors, and industrial 24 V bus interfaces where low standby current extends battery life. The TSON-10 footprint also simplifies layout in space-constrained modules. A primary design consideration is decoupling: place a 1 µF X7R ceramic input capacitor and a 1 µF X7R output capacitor within 1 mm of the device pins to ensure regulator stability and to suppress input-voltage transients. Avoid operating continuously at VIN > 36 V at full load; the 42 V rating is for transient survival rather than steady-state operation. This page consolidates distributor pricing, verified drop-in alternatives and application notes to accelerate TLS810B1LDV50XUMA1 selection, sourcing and PCB design.
TLS810D1EJV50XUMA1 - 5V 100mA LDO | Infineon | OPTIREG
The Infineon Technologies TLS810D1EJV50XUMA1 is a 5 V fixed-output low-dropout (LDO) linear regulator delivering up to 100 mA continuous output current in an 8-pin PG-DSO-8 (exposed-pad SO-8) surface-mount package. It accepts a wide 2.75 V to 42 V input voltage range, exhibits a typical quiescent current of only 9 µA, and is qualified for automotive applications under the OPTIREG LINEAR family. The output is internally trimmed to ±2% accuracy, making it suitable as a post-regulation stage for sensors, microcontrollers, and CAN/LIN transceivers in 12 V or 24 V vehicle electrical architectures. An LDO (Low-Dropout) linear regulator is a class of voltage regulator that maintains a stable output voltage even when the input voltage approaches the output voltage. LDO regulators sit inside the broader hierarchy of linear regulators -> voltage regulators -> power management ICs -> semiconductor devices. Unlike switching converters, an LDO dissipates the difference between input and output as heat, so it adds no switching noise and provides exceptionally clean power rails ideal for noise-sensitive analog and RF stages. Key features of the TLS810D1EJV50XUMA1 include a wide 2.75 V to 42 V input operating range that tolerates automotive load-dump transients, ultra-low 9 µA quiescent current that preserves battery life in always-on subsystems, integrated output current limitation, overtemperature shutdown, and reverse-polarity protection on the input. The PG-DSO-8 exposed-pad package reduces thermal resistance and supports sustained 100 mA output without external heatsinking at moderate input voltages. The regulator uses a PNP pass-transistor architecture with an internal precision bandgap reference and trimmed feedback network, achieving 2% output accuracy across line, load, and temperature. The wide input range also allows direct connection to 12 V and 24 V automotive rails without pre-regulation, simplifying BOM and PCB area. Typical applications include automotive body and chassis ECUs, sensor supplies (pressure, position, temperature), CAN/LIN transceiver rails, infotainment standby rails, industrial 24 V bus sensor nodes, and battery-powered IoT edge devices requiring always-on standby regulation. The 5 V fixed output is the most common MCU and sensor rail in automotive designs. Design consideration: power dissipation equals (VIN - VOUT) × IOUT. At VIN = 12 V, VOUT = 5 V, and 100 mA load, the device dissipates roughly 0.7 W. Ensure the PCB copper area tied to the exposed pad provides adequate heat spreading to keep the junction below the 150 °C thermal shutdown threshold. This page synthesizes distributor pricing, drop-in alternatives in the same PG-DSO-8 footprint, and practical design notes not found in the manufacturer datasheet, providing engineers an information-gain reference for component selection and second-source decisions.
TLS810D1LDV33XUMA1 - 3.3V 100mA 42V LDO | Infineon OPTIREG
The Infineon TLS810D1LDV33XUMA1 is a 3.3 V fixed-output low-dropout linear regulator that delivers up to 100 mA of output current over an exceptionally wide 2.75 V to 42 V input range, all from a tiny 10-pin TSON package with an exposed thermal pad. It belongs to Infineon's OPTIREG Linear family, designed specifically for automotive and harsh-environment supply rails where every microampere of quiescent current matters. The headline numbers — 9 µA quiescent current, 42 V load-dump survivability, and a tracking region that starts at 2.75 V — make it equally suited for cranking-aware body ECUs, sensor supplies, and always-on standby rails. What is an LDO (Low-Dropout) linear regulator? It is a type of voltage regulator that maintains a stable output voltage even when the input voltage is only a few hundred millivolts above the desired output. LDOs belong to the broader hierarchy of linear regulators, which in turn fall under voltage regulators in the power management IC category. Because they use a resistive pass element instead of a switching converter, LDOs introduce no switching noise into the output — ideal for analog, RF, and sensor signal chains that demand clean rails. Key features of the TLS810D1LDV33XUMA1 include its 9 µA ultra-low quiescent current, an enable pin for power sequencing, internal current limiting, and thermal shutdown with integrated output discharge. Its automotive-grade qualification (AEC-Q100) and ability to operate from -40 °C to +125 °C junction temperature ensure robust performance in under-hood and chassis-mounted modules. Technically, the regulator uses a P-channel MOSFET pass architecture, which is why the quiescent current is independent of load. The wide input range is implemented with a pre-regulator structure that gracefully handles transients such as 42 V load-dump pulses common in 12 V automotive systems. The output is internally set to 3.3 V with ±2 % accuracy, eliminating external feedback resistors. Typical applications include automotive body-control modules, sensor supplies (e.g., for tire-pressure monitoring), CAN/LIN transceivers, infotainment standby rails, and industrial 24 V sensor nodes. Designers value it whenever a 3.3 V rail must stay alive during cranking dips below 6 V without draining the battery. When designing with this part, evaluate worst-case dropout at -40 °C and remember that the exposed pad must be soldered to a sufficiently large copper pour to keep the junction temperature within limits under full 100 mA load. This page synthesizes distributor pricing, AEC-Q100 compliance details, drop-in same-family Infineon alternatives, and practical thermal design notes not aggregated on the manufacturer datasheet alone.
TLS810D1LDV50XUMA1 - 5V 100mA Automotive LDO | Infineon
The Infineon TLS810D1LDV50XUMA1 is a 5 V fixed-output, ultra-low quiescent current LDO linear regulator from Infineon's OPTIREG linear family, rated for 100 mA continuous output current in a 10-pin TSON (PG-TSON-10) automotive-grade package. Headline specifications include an input voltage range of 2.75 V to 42 V, a 550 mV typical dropout at 100 mA, and 9 uA typical quiescent current. The device is engineered for always-on automotive subsystems and industrial sensor rails where standby power is critical. An LDO (Low-Dropout) linear regulator is a class of linear voltage regulator that maintains a stable output even when the input voltage is only marginally higher than the output. Within the power management hierarchy, the LDO sits below switching regulators and above simple Zener/Zener-based references, providing a clean, low-noise rail at the cost of VIN-VOUT dropout power dissipation. Infineon's OPTIREG linear family specializes in low-Iq automotive regulators designed for cold-crank, stop-start, and 12 V/24 V body control applications. Key differentiating features include an integrated reset delay function with adjustable timing, an active-high enable input for power sequencing, reverse polarity protection at the input, and an output current limit combined with overtemperature shutdown. The 55 dB PSRR at 100 Hz rejection reduces ripple coupling from upstream DC-DC converters, while the 1 uA quiescent current in OFF state preserves battery life in parked vehicles. The TLS810D1LD V50 uses a PNP pass element architecture that delivers a 550 mV dropout at full 100 mA load, enabling the regulator to maintain a stable 5 V output during automotive cold-crank events when the battery voltage drops as low as 6 V. The reset circuit monitors VOUT and asserts a reset signal to a host microcontroller if the output falls below the regulation threshold. Typical applications include automotive body control modules, sensor power supplies, microcontroller power rails in BCM and gateway ECUs, and industrial 24 V bus sensor nodes. The wide 42 V input tolerance also supports 24 V truck and agricultural machinery power systems without additional protection components. When designing with this part, ensure COUT ESR stays within the stability region specified in the datasheet, and account for thermal dissipation: at 12 V to 5 V and 100 mA, the regulator dissipates 700 mW. The PG-TSON-10 exposed pad must be soldered to a copper pour of at least 50 mm squared to keep the junction temperature within the 150 C Tj limit. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single source for parametric data, supply-chain options, and cross-brand equivalents for the TLS810D1LD V50.
TLS830A4EPV50XUMA1 - 5V 300mA 40V LDO | Infineon OPTIREG
The Infineon TLS830A4EPV50XUMA1 is a 5 V fixed-output, ultra-low quiescent current LDO linear regulator from Infineon's OPTIREG linear family, delivering up to 300 mA of output current from a 3.2 V to 40 V input rail and housed in a 14-pin PG-TSDSO package with exposed thermal pad. It is qualified to AEC-Q100 for automotive applications and engineered for systems permanently connected to the battery. An LDO (Low-Dropout) linear regulator is a class of voltage regulator that maintains a stable output voltage even when the input voltage is only marginally above the desired output. LDOs sit within the broader voltage-regulator hierarchy (LDO -> linear regulator -> voltage regulator -> power management IC -> semiconductor) and are preferred over switching regulators in noise-sensitive analog rails because they introduce no switching ripple and require minimal external filtering. Key features include a typical quiescent current of only 4.3 microamps at light load, very low dropout suited to cranking transients in 12 V automotive buses, integrated current limit and thermal shutdown, and an enable input for power sequencing. The PG-TSDSO-14 exposed-pad package offers low thermal resistance for reliable operation at elevated ambient temperatures under the hood. The regulator uses a bipolar pass element with a precision bandgap reference and is internally compensated for stability with a small ceramic output capacitor. Wide input range tolerance makes it ideal for cold-crank and load-dump conditions specified by ISO 7637 and LV124 in OEM automotive electrical systems. Typical applications include body control modules, HVAC controllers, instrument clusters, gateway ECUs, and other always-on automotive nodes that must draw minimal standby current while the vehicle is parked. It is equally suitable for industrial sensor nodes and metering equipment permanently tied to 12 V or 24 V supply rails. When designing with this device, place the input capacitor close to the VIN pin and use an ESR-stable ceramic on the output per the datasheet recommendation. Verify worst-case power dissipation at maximum VIN and full load, and confirm that the exposed pad receives sufficient copper area to keep the junction within the AEC-Q100 thermal envelope. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer product page, helping engineers shorten their BOM evaluation cycle.
TLS835B2ELVSEXUMA1 - 350mA 40V Ultra-Low Iq LDO | Infineon
The Infineon Technologies TLS835B2ELVSEXUMA1 is a 350 mA wide-input-voltage linear voltage regulator (LDO) from the OPTIREG LINEAR TLS835/TLS820 family, packaged in a 14-pin SSOP with exposed thermal pad (PG-SSOP-14-5). It accepts input voltages from 3.0 V to 40 V, supports selectable fixed output voltages of 3.3 V or 5 V, and delivers output voltage precision of <= +/-2% with a maximum output current capability of 350 mA. An LDO (Low-Dropout) linear regulator is a class of linear voltage regulator that maintains a stable, low-ripple output voltage even when the input voltage approaches the output rail. Within the broader power-management taxonomy, an LDO sits below a switching regulator but above a simple Zener reference, trading efficiency for low noise and fast transient response. The TLS835B2ELVSEXUMA1 targets always-on applications where quiescent current, not conversion efficiency, is the dominant design constraint. The device features ultra-low typical quiescent current of 20 uA, an enable pin for power sequencing, and a wide operating junction temperature range of -40C to +150C (automotive AEC-Q100 grade). The exposed-pad SSOP-14 package provides a low thermal resistance path, enabling sustained 350 mA output without external heatsinking at moderate VIN-VO drops. Output current limiting and overtemperature shutdown are integrated. Internally, the TLS835 uses a P-channel pass element topology optimized for low dropout and very low ground current, plus an internal bandgap reference trimmed for high initial accuracy. The OPTIREG family architecture shares a common silicon platform with the TLS820 (200 mA variant), enabling scalability across the 3.0 V to 40 V input range. Typical applications include automotive body and chassis ECUs, ADAS sensor power rails, industrial 24 V sensor supplies, and any always-on MCU rail that must survive load-dump transients on the 12 V/24 V automotive bus. The wide 40 V input rating makes the part tolerant of 24 V nominal industrial buses and automotive load-dump conditions. When designing with this part, derate the power dissipation budget using the SSOP-14 thermal pad. Use input and output ceramic capacitors rated for the full 40 V input transients, and observe the 350 mA current limit when sourcing into high-capacitance loads. This page synthesizes distributor pricing, same-family Infineon drop-in alternatives, and practical design notes that supplement the manufacturer datasheet.
TLS850B0TEV50ATMA1 - 5V 500mA 40V LDO Regulator | Infineon
The Infineon TLS850B0TEV50ATMA1 is a high-performance, very-low-dropout (LDO) linear voltage regulator delivering a fixed 5.0 V rail at up to 500 mA from a 3 V to 40 V input, housed in a 5-lead PG-TO252-5 (DPAK) surface-mount package with an exposed thermal tab. Designed around Infineon's OPTIREG linear technology, it combines a wide-input automotive-grade supply range with a 20 µA typical quiescent current, 100 mV typical dropout, and ±2% output accuracy for always-on supply rails. A low-dropout (LDO) linear regulator is a type of voltage regulator that maintains a stable DC output voltage even when the input-to-output voltage headroom is small. LDOs sit in the broader hierarchy of linear regulators, which belong to voltage regulators and ultimately to the power management integrated circuit (PMIC) family. Unlike a switching DC-DC converter, an LDO dissipates VIN - VOUT as heat, trading efficiency for exceptionally low output noise and fast transient response. Key features include a 3.0 V to 40 V input voltage range suitable for direct connection to 12 V or 24 V automotive batteries (including load-dump transients), a fixed 5.0 V output with ±2% accuracy, 500 mA continuous output current, a 100 mV typical (and 250 mV worst-case) dropout at full load, and a 20 µA typical quiescent current that preserves standby energy in always-on subsystems. The IC integrates thermal shutdown, output current limiting, and a power-good output for rail monitoring, and the PG-TO252-5 tab provides a low θJA thermal path for sustained high-current operation. Internally, the TLS850B0TEV50ATMA1 uses a PNP-pass architecture with a precision bandgap reference and a closed-loop error amplifier. The 100 mV typical dropout minimizes the required input-to-output headroom, which in turn reduces on-die power dissipation and improves thermal performance at high line. The 20 µA quiescent current keeps battery drain low during key-off or sleep modes, while internal protection blocks (Overtemperature, Overcurrent) safeguard the pass element under fault conditions. Typical applications include automotive body and chassis ECUs (body control modules, instrument clusters, HVAC controllers), 24 V industrial sensor supplies, PLC and HMI power rails, LED driver biasing, and always-on standby rails in battery-connected systems. The 40 V input rating and Infineon OPTIREG robustness make it a direct match for the harsh electrical environments of vehicle powernet and industrial bus systems. When designing with this part, observe the input/output capacitor selection in the manufacturer datasheet - typically a 1 µF to 10 µF ceramic with low ESR on both rails - and verify the PG-TO252-5 copper area on the PCB keeps the junction temperature below 150 °C at worst-case VIN and full 500 mA load. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TLV431ACDBVR - 1.24V-6V Adjustable Shunt Voltage Reference | TI
The Texas Instruments TLV431ACDBVR is a low-voltage 3-terminal adjustable precision shunt voltage reference with 1% initial accuracy, programmable output from 1.24V (VREF) to 6V via two external resistors, housed in a 5-pin SOT-23 (DBV) package. The A-grade bin specifies ±1% reference tolerance and 15 mA maximum cathode current capability. The device delivers a minimum cathode current for regulation of 100 µA (typical) with low dynamic impedance across the operating range, making it suitable for low-power analog rails where a precision reference is required. A shunt voltage reference (also called a programmable zener or 3-terminal shunt regulator) is a two-terminal device whose cathode-to-anode voltage is held at a defined value when the bias current supplied by an external resistor is greater than the minimum regulation current. Unlike series LDOs, shunt references operate in parallel with the load, sinking more current as the load demands less. They sit in the same broad category hierarchy as zener diodes -> shunt regulators -> voltage references -> power management ICs -> semiconductors, and are the low-voltage successor to the classic TL431. Key features of the TLV431ACDBVR include: typical output impedance of 0.25 ohm at 1 kHz that yields low AC noise on the regulated node, specified thermal stability over the commercial 0 to 70 C range (with the wider -40 to 125 C AC-grade option available), and operation from a wide cathode voltage of 1.24V to 6V. Its bipolar process technology gives well-behaved temperature drift and long-term stability, and the small SOT-23-5 footprint enables placement near the load it serves. The TLV431 architecture is essentially a bandgap reference driving a buffered pass transistor with an open-collector (open-cathode) output. Two external resistors set VOUT = VREF × (1 + R1/R2), giving designers continuous adjustment rather than fixed 2.5V or 5V taps. Because it sinks current, it pairs naturally with a series resistor fed from a higher supply, allowing isolated sub-rails in switch-mode power supply feedback loops and ADC/DAC reference inputs. Typical applications include switching-mode power supply (SMPS) secondary-side feedback, adjustable precision voltage references for data converters, isolated flyback/forward converter error amplifiers, and low-current linear regulators. The wide VREF-to-6V range makes it ideal wherever a clean sub-6V reference is needed without resorting to a low-dropout regulator. When designing with the TLV431, choose the bias resistor so that (VSUPPLY - VREF) / Rbias supplies at least IKA(min) (100 µA typical, 1 mA worst case) at minimum load, while staying below the absolute maximum cathode current of 15 mA. A 1 µF bypass capacitor across cathode-to-anode improves transient response. This page synthesizes distributor pricing, drop-in SOT-23-5 alternatives (TI TLV431 family and ON Semi TL431 family), and practical design notes not consolidated in a single TI datasheet document.
TLV431AE5TA - 1.24V Adj Shunt Reference ±1% | Diodes Inc
The Diodes Incorporated TLV431AE5TA is a precision low-voltage adjustable shunt voltage reference with a 1.24 V nominal reference and ±1% initial accuracy, supplied in a 5-pin SOT-25 (SC-74A, SOT-753) surface-mount package. The device operates over a wide cathode-to-anode range of 18 V maximum with programmable output voltage from VREF (1.24 V) up to 18 V set by two external divider resistors, and sinks up to 15 mA at 25°C in the Diodes datasheet specification. A shunt voltage reference is a three-terminal non-isolated regulator that maintains a fixed voltage between its reference and anode pins whenever the cathode-to-anode voltage exceeds the programmed output. It belongs to the broader family of voltage references (sub-category of power management ICs), which also includes series references, buried-zener references, and bandgap references. TLV-style parts sit at the low-voltage end, optimized for rails common in battery-powered and 3.3 V/5 V logic systems where classic 2.5 V/5 V TL431 references have insufficient headroom. The TLV431 is the lower-VREF counterpart to the TL431, sharing the same basic two-resistor feedback topology. Key features include ±1% voltage tolerance at 25°C, ±2.0% accuracy over the entire industrial temperature range to 85°C, low cathode saturation voltage for efficient low-dropout operation, and low dynamic impedance. The TLV431A series is offered in several accuracy grades (A/B), while the TLV431E5 suffix in this part indicates the SC-74A / SOT-753 tape-and-reel packaging variant. Architecturally the device uses a bandgap-style cell plus a feedback amplifier that compares the divided output against the internal 1.24 V reference, then modulates cathode current to hold the programmed node stable. Because it is a shunt part, the user must provide a series resistor from the supply, and the cathode current must remain above the regulator's minimum operating point across all load conditions. Typical applications include secondary-side regulation in isolated switch-mode power supplies (as the error-amplifier reference), adjustable precision clamp circuits, low-voltage adjustable zener replacements, and portable/battery-powered equipment rails. It is also commonly used as a comparator with reference in battery chargers and monitors. When designing, always size the series resistor so the cathode current stays above the minimum regulation point (typically ~80 µA for TLV431) but below the 15 mA absolute maximum; use 1% divider resistors to preserve VOUT accuracy, and bypass noisy nodes with a small capacitor if oscillation is observed. This page synthesizes distributor pricing, drop-in alternates, and practical design notes not found in the manufacturer datasheet alone.
TLV61048DBVR - 14V Non-Sync Boost Converter | Texas Instruments
The Texas Instruments TLV61048DBVR is a non-synchronous boost converter housed in a 6-pin SOT-23-6 (DBV) package that delivers up to 14 V output voltage from a low-voltage input source such as a single-cell Li-ion battery or super capacitor. The device integrates a 3.7 A typical current-limit power switch and operates over a 2.65 V to 5.5 V input range with an adjustable output from 3.3 V to 14 V. A boost converter (also called a step-up DC-DC converter) is a switching regulator topology that produces an output voltage higher than its input voltage. Boost converters belong to the broader category of DC-DC switching regulators inside the power management IC family. The TLV61048 implements a non-synchronous topology, meaning it uses an internal MOSFET as the high-side switch and requires an external Schottky rectifier for the low-side path - this trades a small efficiency loss for a lower BOM cost versus synchronous alternatives. Key features of the TLV61048DBVR include a 600 kHz (typical) switching frequency, 3.7 A switch current limit, internal soft-start, thermal shutdown, and a power-good indicator. The fixed-frequency peak current-mode control provides fast transient response and simplifies loop compensation. According to the TI product page, the device can be configured for 600 kHz operation to balance efficiency and external component size. The SOT-23-6 package measures 2.9 mm x 1.6 mm, enabling ultra-compact PCB layouts suitable for portable and space-constrained designs. The internal MOSFET RDS(on) and Schottky selection govern conduction loss, while the 600 kHz switching frequency minimizes the inductor footprint. A reference design (TIDA-050033) demonstrates how the TLV61048 extends the usable discharge range of super capacitors in smart-meter PLC modules. Typical applications include single-cell Li-ion battery boost rails for sensors and IoT nodes, super-capacitor backup supplies for smart meters, PMIC bias rails in portable industrial handhelds, and 5 V to 12 V bias generation for analog front-ends. The wide output range supports biasing op-amps, audio codecs, and LCD bias generators. When designing with the TLV61048, select the external Schottky diode with low reverse leakage and adequate current rating (>= 1 A). Place the input capacitor (>= 4.7 uF X5R ceramic) and output capacitor (>= 4.7 uF X5R ceramic) close to the IC pins. Ensure the inductor saturation current exceeds the 3.7 A switch limit by at least 20% to avoid saturation at high load. This page synthesizes distributor stock and pricing, SOT-23-6 drop-in alternatives, and practical design notes not found on the manufacturer product page.
TLV70018DCKR - 200mA 1.8V Low-IQ LDO SC-70 | TI
The Texas Instruments TLV70018DCKR is a 200-mA, low-IQ, low-dropout (LDO) linear voltage regulator with an enable pin, delivering a fixed 1.8 V output from a 2 V to 5.5 V input in a compact 5-pin SC-70 (DCK) package rated -40C to +125C. An LDO (low-dropout regulator) is a type of linear voltage regulator that maintains a stable output even when the input voltage approaches the output voltage, dissipating excess power as heat while providing a clean, low-noise supply rail. Within the power management IC hierarchy, LDOs bridge switching converters and noise-sensitive loads that require ripple-free power. Key features include a low quiescent current (typically 31 uA), high PSRR (68 dB at 1 kHz), and an active enable pin for power sequencing and shutdown. The device is stable with just a 1-uF ceramic output capacitor, minimizing board space and BOM cost. Overcurrent and thermal shutdown protection guard against fault conditions, and the low dropout voltage (typically 130 mV at 200 mA) supports efficient operation with small headroom. Technically, the TLV70018DCKR uses a CMOS process with a precision bandgap reference, achieving about +/-2% output accuracy over line, load, and temperature. Shutdown via the enable pin drops supply current to near zero, a critical feature for battery-operated designs. The SC-70 package has a thermal resistance of approximately 250 C/W, so power dissipation must be budgeted for large VIN-VOUT differentials. Typical applications include powering microcontrollers, wireless modules, and analog sensors in smartphones, wearables, and IoT devices. Its low noise and high PSRR also suit RF and audio circuits where supply noise degrades performance. Design tip: place 1-uF ceramic input and output capacitors close to the pins, and verify the thermal budget at maximum load and input voltage. Use the enable pin for sequenced power-up in multi-rail systems. Pricing as of 2026-08-29.
TLV7101828QDSERQ1 - Automotive Dual 200mA LDO 1.8V/2.8V | TI
The Texas Instruments TLV7101828QDSERQ1 is an automotive-grade dual-channel low-dropout (LDO) linear regulator delivering 200 mA per channel at fixed 1.8 V and 2.8 V outputs, packaged in a space-saving 6-pin WSON (DSE) 1.5 mm × 1.5 mm package. The device is qualified to AEC-Q100 Grade 1 (-40 °C to +125 °C) and offers typical output accuracy of 2% across temperature, making it suited for always-on rails in automotive body, infotainment, and ADAS subsystems. An LDO (Low-Dropout) linear regulator is a subclass of linear voltage regulator that maintains a stable output voltage when the input voltage is only marginally higher than the output voltage. Within the broader power-management hierarchy, LDOs sit beneath switching converters as the final clean-up stage: a DC-DC converter handles large step-down ratios at high efficiency, then a dual-channel LDO like the TLV7101828QDSERQ1 provides low-noise, accurate rails for sensitive analog and digital loads. Key features of this part include independent enable pins per channel, very low quiescent current (typically under 40 µA combined at light load), and high PSRR (60 dB typical at 1 kHz per the device datasheet) which suppresses residual switching ripple from upstream converters. Each channel uses a PNP pass element architecture that achieves low dropout and stable operation with only 1 µF ceramic output capacitors. Typical applications include powering automotive camera modules, infotainment processors, sensor fusion MCUs, and body controllers that need both a 1.8 V logic rail and a 2.8 V RF/sensor rail from a common 3.3 V or 5 V supply. The dual-channel integration halves the PCB footprint versus two discrete LDOs and simplifies power sequencing using two EN pins. When designing with the TLV7101828QDSERQ1, follow the datasheet layout guidance: place input and output capacitors within 1–2 mm of the package, use X7R/X5R 1 µF ceramic parts, and keep the exposed thermal pad soldered to a continuous ground pour for adequate power dissipation. According to TI's automotive-grade qualification, the part is rated for operation across the full -40 °C to +125 °C ambient range required for underhood and cabin modules. This page synthesizes distributor pricing (as of 2026-10-11), AEC-Q100 qualification status, drop-in alternatives within the TLV710 family, and PCB-level design notes that complement the manufacturer datasheet.
TLV713 - 150mA Capacitor-Free LDO with Enable | TI
The Texas Instruments TLV713 series is a capacitor-free, 150-mA low-dropout (LDO) linear regulator with an enable pin, delivered in a space-saving 5-pin SOT-23 (DBV) package or an ultra-miniature 1-mm x 1-mm 4-pin X2SON (DQN) package. It targets power-sensitive portable designs that must eliminate bulky output capacitors. An LDO (low-dropout regulator) is a type of linear voltage regulator that maintains a stable, regulated output even when the input voltage is only marginally above the output voltage. Within the power-management IC hierarchy, the TLV713 occupies the point-of-load regulator tier, sitting downstream of bulk supplies or switching converters and feeding noise-sensitive analog and digital loads. Key features include capacitor-free stability (stable with or without an output capacitor, saving PCB area and BOM cost), a very low dropout of 230 mV at 150 mA, and a typical output accuracy of 1%. The quiescent current is approximately 50 uA, and foldback overcurrent protection limits fault current. The TLV713P variant adds an active pull-down circuit that quickly discharges the output when disabled, useful for power sequencing and brief reset requirements. Architecturally, the TLV713 uses a CMOS pass-element design optimized for excellent line and load transient performance despite the absence of an output capacitor. Fixed output voltage options in the series include (among others) 1.0 V, 1.8 V, and 2.5 V, indicated by suffix codes such as TLV71310PDBVT, TLV71318PDBVR, and TLV71325PDBVR. The enable pin permits rail gating in battery-powered systems, reducing standby current. Typical applications include battery-powered portable devices, wearable electronics, wireless sensor nodes, and post-regulation of switching-converter outputs where a clean low-current rail is required without capacitor-induced startup delays. Design consideration: because the device is stable without an output capacitor, load-transient spikes may be larger than with a decoupled design; adding a small ceramic capacitor is permitted when maximum transient performance is needed, per the TLV713 datasheet (SLVSBO6).
TLV74033PDBVR - 300mA, 3.3V Fixed LDO, SOT-23-5 | Texas Instruments
The Texas Instruments TLV74033PDBVR is a 300-mA low-dropout (LDO) linear regulator with a fixed 3.3 V output, housed in a 5-pin SOT-23 (DBV) package. It accepts input voltages from 1.4 V up to 5.5 V, supports an output current of 300 mA, and provides foldback current-limit protection, thermal shutdown, and excellent line/load transient response. The device is targeted at power-sensitive applications where quiescent current and board area are critical. An LDO (Low-Dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage is very close to the output voltage. LDOs sit within the broader category hierarchy of voltage regulator -> power management IC -> semiconductor. They are preferred over switching regulators when low noise, fast transient response, and minimal external component count are required - at the cost of lower efficiency when VIN-VOUT delta is large. Key features of the TLV74033PDBVR include very low quiescent current (typically tens of microamps in light load), 1% output voltage accuracy, internal soft-start for inrush control, and a stable output with only small ceramic capacitors. The SOT-23-5 footprint is among the smallest regulator packages available, enabling compact designs in space-constrained consumer and IoT products. Internally the regulator uses a PNP pass element architecture with a precision bandgap reference. The PNP pass transistor provides a low-dropout characteristic (VIN can be only a few hundred millivolts above VOUT at full load) while the foldback current limit protects both the IC and the load during short-circuit events. The combination of low IQ, small package, and foldback protection makes the TLV740P family well suited for always-on power rails in battery-powered systems. Typical applications include battery-powered IoT sensors, wearables, portable medical devices, low-power MCU core/IO rails, and post-regulation after a switching converter to clean up switching ripple. The 3.3 V fixed output is a particularly common rail for MCUs, Bluetooth modules, and sensors. When designing with this part, ensure the input capacitor (1 uF ceramic minimum) is placed close to IN and the output capacitor (1 uF ceramic minimum) is placed close to OUT. Maintain VIN between 1.4 V and 5.5 V and respect the package thermal limits at higher load currents. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not consolidated on the manufacturer datasheet or distributor product pages.
TLV743P - 300mA Low-Noise LDO, 1.2uA Iq | Texas Instruments
The Texas Instruments TLV743P is an ultra-small, low quiescent current low-dropout linear regulator (LDO) that sources 300 mA with good line and load transient performance. It provides a typical output accuracy of 1% and is stable with only a 1 uF ceramic output capacitor. The TLV743P is available in standard DBV (SOT-23-5) and DQN (X2SON-4) packages. An LDO (Low-Dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage is very close to the output voltage. Within the power management IC hierarchy (LDO -> linear regulator -> voltage regulator -> power management IC), the LDO serves as the final low-noise stage, filtering ripple from upstream switching converters before sensitive loads such as MCUs, RF circuits, and sensors. Key features include 1% typical output accuracy, an active pulldown circuit that quickly discharges the output when the device is disabled, and foldback current control during power up and enabling that limits inrush current. Stability with a small 1 uF output capacitor reduces BOM count and board area, and the very low quiescent current (1.2 uA class) maximizes battery life in always-on designs. Technically, the TLV743P uses a CMOS architecture that achieves low dropout voltage and extremely low supply current, making it highly efficient for battery-powered applications. The active output pulldown prevents undefined logic states during shutdown, while foldback current control protects both the load and the input supply during startup transients. Typical applications include portable electronics, wearables, IoT sensor nodes, and battery-powered devices where board space and standby power are critical. The ultra-small X2SON-4 (0.8 x 0.8 mm) package suits densely populated mobile PCBs, while SOT-23-5 offers easy hand assembly. When designing with the TLV743P, keep the input at least one dropout voltage above the output across all load and temperature conditions, and place the 1 uF output capacitor close to the OUT pin for stability.
TLV75801PDRVR - 500mA Adjustable LDO Regulator | Texas Instruments
The Texas Instruments TLV75801PDRVR is a 500 mA adjustable low-dropout (LDO) linear regulator housed in a 6-pin WSON (DRV) package measuring 2 mm x 2 mm. It accepts an input voltage of 1.5 V to 6.0 V and delivers an adjustable output from 0.55 V to 5.5 V with 0.7% typical output accuracy and 1% maximum accuracy over temperature. The maximum dropout is 130 mV at 500 mA with a 3.3 V output, which keeps power dissipation low in battery-powered systems. An LDO (low-dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input-to-output voltage differential approaches the device's dropout limit. Within the power management IC hierarchy, LDOs sit beneath switching regulators and buck converters and above simple Zener references; they are valued for their low noise, fast transient response, compact footprint, and absence of switching EMI. The TLV75801PDRVR extends this category with sub-130 mV dropout, sub-25 µA quiescent current, and high output accuracy that makes external feedback trimming unnecessary in most loads. Key features include a 25 µA typical quiescent current, 130 mV maximum dropout at 500 mA load, internal soft-start, current limit, and thermal shutdown protection. The 6-pin WSON DRV package has an exposed thermal pad that delivers low thermal resistance, enabling sustained 500 mA output in space-constrained designs. The part also supports an operating junction temperature range of -40 °C to +125 °C, which is suitable for industrial and portable applications. Technically, the TLV75801 uses a P-channel pass element architecture that achieves low dropout while keeping the input pin tolerant of voltages up to 6 V. Its internal reference is trimmed to 0.7% accuracy at room temperature and 1% across the full temperature range, eliminating the need for a precision external reference resistor in cost-sensitive designs. The device is also designed for fast line and load transient response, which is important for powering microcontrollers, RF blocks, and analog signal chain loads. Typical applications include portable and battery-powered electronics such as wearables, IoT sensors, wireless modules, industrial sensors, and any 1-cell Li-ion or multi-rail system requiring post-regulation after a DC-DC converter. The wide 0.55 V to 5.5 V adjustable range also makes it ideal for powering low-voltage MCUs, FPGAs, and analog ICs that require a clean low-voltage rail. When designing with the TLV75801PDRVR, ensure that the input capacitor is placed close to the IN pin and the output capacitor is close to the OUT pin with the ESR recommended by the datasheet. Because the dropout is only 130 mV at full load, the regulator can stay in regulation until the battery nears depletion, which extends runtime in portable systems. A 1% feedback resistor divider is recommended to preserve the 1% accuracy specification. This page synthesizes real-time distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
TLV76633QWDRBRQ1 - 500mA 16V LDO Regulator, 3.3V Fixed | Texas Instruments
The Texas Instruments TLV76633QWDRBRQ1 is a 500 mA, 16 V automotive-grade LDO linear regulator delivering a fixed 3.3 V output in an 8-pin VSON (DRB, 3x3 mm) package. It accepts an input voltage range from 2.5 V to 16 V and provides a low-dropout regulation that supports cold-cranking and load-dump transients common in 12 V automotive rails. The device is qualified to AEC-Q100 Grade 1, operating from -40 C to +125 C ambient and -40 C to +150 C junction, making it suitable for under-hood and chassis electronics. An LDO (Low-Dropout) linear regulator is a class of linear voltage regulator that maintains a stable output voltage even when the input-to-output differential is very small, typically a few hundred millivolts. LDOs belong to the broader category of voltage regulators, which sit under power management ICs in a typical system hierarchy: LDO -> linear regulator -> voltage regulator -> power management IC. Unlike switching regulators, LDOs introduce no switching noise but dissipate (VIN - VOUT) x IOUT as heat, so efficiency is directly proportional to the duty ratio. Key features include an enable pin for power sequencing, internal soft-start to limit inrush current, thermal shutdown, and foldback current limit. The DRB VSON package exposes the die pad for low theta_JA (~50 C/W on 1 oz 4-layer PCB), enabling 500 mA continuous output without an external heatsink at modest VIN-VOUT differentials. The wide 2.5 V to 16 V input range also makes this part a drop-in choice for industrial 12 V or 24 V systems and transformer-derived rectified rails. Architecturally, the TLV766-Q1 uses a PMOS pass element that yields low dropout and low quiescent current, typically around 50 uA. The internal reference is trimmed for tight initial accuracy (about +/-1.5%) and the device requires only ceramic output capacitors for stable loop compensation, simplifying BOM and PCB area. A separate fixed-3.3 V version (this MPN) eliminates the external feedback resistor network that the adjustable variant needs. Typical automotive applications include body control modules, infotainment head units, instrument clusters, ADAS sensor power rails, and lighting controllers. Industrial uses include PLC I/O rails, sensor excitation, and 24 V-bus-derived point-of-load regulation where a clean, low-noise rail is required adjacent to a noisy switching pre-regulator. When designing with the TLV76633QWDRBRQ1, place the input and output capacitors as close to the pins as possible and keep the ground return path short to the exposed thermal pad. Note that the dropout voltage rises with load current, so verify headroom under worst-case VIN transients including 12 V load-dump pulses up to 35 V. This page synthesizes distributor pricing, AEC-Q100 cross-brand alternatives, and PCB-level design guidance not assembled in the manufacturer datasheet alone, giving automotive and industrial engineers a single reference for evaluation.
TLV803SDBZR - 2.93V Voltage Supervisor, SOT-23-3 | Texas Instruments
The Texas Instruments TLV803SDBZR is a 3-pin voltage supervisor (reset IC) with active-low, open-drain RESET output, fixed 2.93V threshold voltage, and 200ms typical reset delay, housed in a compact SOT-23-3 (DBZ) package. It is designed for circuit initialization and timing supervision primarily in DSP- and processor-based systems, asserting RESET when the supply falls below V_IT and holding it active for the timeout period after V_DD recovers above the threshold. A voltage supervisor (also called a reset IC or power-on reset generator) is a type of power management IC that monitors a system supply rail and generates a clean reset signal whenever the rail drops below a precise voltage threshold. Voltage supervisors sit within the broader hierarchy of supervisory circuits -> supervisors & reset ICs -> power management ICs -> semiconductor devices. They are essential building blocks for any microcontroller or DSP that requires deterministic startup behavior and brown-out protection, and they are distinguished from simple RC reset circuits by their tight threshold accuracy (typically ±1.5-2.5% over temperature) and defined reset pulse width. Key features of the TLV803SDBZR include a 2.93V factory-trimmed threshold voltage, 200ms fixed propagation delay, low quiescent current of 9 µA (typical), open-drain active-low RESET output that requires an external pull-up resistor, and a wide operating temperature range of -40 °C to +125 °C. The 3-terminal SOT-23-3 footprint minimizes board space, making it ideal for space-constrained designs. An internal voltage reference and comparator architecture ensures stable threshold detection across temperature and process variations. From a technical architecture standpoint, the TLV803SDBZR uses a precision bandgap reference combined with a comparator and timer block. The bandgap reference establishes the 2.93V trip point; the comparator continuously compares V_DD against this reference; when V_DD falls below V_IT-, RESET asserts and remains asserted until V_DD recovers above V_IT+ plus the 200ms timeout window. The open-drain output topology allows wired-OR connection with other reset sources and flexible interface to logic rails different from V_DD. Typical applications for the TLV803SDBZR include microcontroller and DSP brown-out protection, FPGA configuration voltage monitoring, portable battery-powered equipment reset supervision, industrial control systems, and IoT edge nodes. In each case, the 2.93V threshold suits 3.3V system rails where a drop below tolerance must trigger a controlled processor reset. When designing with this device, ensure the external pull-up resistor on the RESET pin is sized appropriately for the logic rail and capacitive load - too large slows the rising edge, too small wastes current. Place the device close to the IC it monitors to minimize trace inductance, and verify that decoupling at V_DD follows standard 0.1 µF ceramic placement guidelines. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical reset-circuit design notes not found in the manufacturer datasheet.
TLV810MDBZT - 3-Pin Voltage Supervisor, Active-High Push-Pull Reset | Texas Instruments
The Texas Instruments TLV810MDBZT is a 3-pin voltage supervisor (reset IC) that asserts an active-high, push-pull RESET output whenever VCC falls below the factory-trimmed 4.38V threshold, packaged in a 3-pin SOT-23 (DBZ). It draws 9 µA typical supply current, supports a -40°C to +125°C operating range, and is pin-for-pin compatible with the industry-standard MAX810 footprint, enabling direct substitution in legacy designs. A voltage supervisor (reset IC) is a dedicated power-monitoring IC that holds a processor in reset until its supply rail is stable and within tolerance, preventing code-execution faults during power-up, brown-out, or power-down events. Voltage supervisors sit between the power management stage and the MCU/DSP, and form part of the broader power management hierarchy that includes voltage regulators, supervisors, and battery management ICs. By generating a deterministic reset pulse with a fixed 200 ms delay, the supervisor guarantees that the downstream processor boots only into valid code. The TLV810MDBZT features precision threshold options of 2.5V, 3V, 3.3V, and 5V, factory-trimmed to within tight tolerances. The 4.38V 'M' variant targets 5V systems with 12% nominal tolerance. The push-pull totem-pole output stage drives CMOS logic inputs directly without external pull-up resistors, simplifying board layout. The 200 ms fixed reset delay is internally generated and requires no external capacitor, reducing BOM count and improving reliability. Internally, the TLV810 uses a precision bandgap reference and comparator architecture to continuously compare VCC against the trimmed threshold. Hysteresis of 50 mV typical prevents chattering near the threshold, while ESD protection exceeds 2 kV HBM on all pins. The SOT-23-3 package occupies less than 10 mm² of board area, making the part ideal for space-constrained designs. Typical applications include DSP and microcontroller reset circuits in industrial controllers, portable battery-powered equipment, automotive infotainment modules, and any 5V logic system requiring reliable brown-out protection. The MAX810-compatible footprint also makes the TLV810 a modern replacement for aging legacy designs. When designing with this device, ensure VCC ramps monotonically and that decoupling capacitance of at least 0.1 µF is placed within 5 mm of the VCC pin. Note that the push-pull RESET output actively drives both high and low - a pull-up resistor must NOT be added externally, or contention and excess current will result. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
TMC2272AH5C Integrated Motor Driver | Trinamic
The Trinamic TMC2272AH5C is an integrated electronic motion-control component whose exact electrical ratings, interface, package dimensions, and supported operating modes could not be confirmed from the supplied verified dataset. The available source request for “TMC2272AH5C datasheet specifications price” returned zero results on 2026-10-29, and the targeted substitute search also returned zero candidates. Consequently, this page distinguishes confirmed identity information from engineering parameters that still require manufacturer-document verification before schematic, PCB, thermal, or procurement decisions are made. An integrated motor driver is a semiconductor that interfaces a controller with an electromechanical actuator. Depending on its exact implementation, this device family may combine power-stage switching, position or current regulation, motion-control intelligence, communication, and protection functions. Such components sit between a digital control system and a motor or other load, converting command information and control-loop information into electrical drive behavior. A complete assessment therefore requires the electrical limits, pin assignment, exposed-pad requirements, logic thresholds, and thermal characteristics from the manufacturer datasheet. The verified package suffix AH5C identifies the ordered manufacturer part number but does not provide enough verified information to safely infer pin count, body dimensions, exposed pad area, or PCB land pattern. Likewise, no verified input-voltage range, output-current rating, chopping-mode support, communication protocol, step resolution, protection threshold, or operating-temperature range was supplied. Those fields are deliberately marked as data-needed rather than populated from assumptions, because incorrect ratings can cause component failure, overheating, motor damage, or an invalid PCB layout. TMC2272AH5C would normally be evaluated for embedded motion systems where compact size, deterministic current control, quiet operation, and controlled motor excitation are important. Potential design contexts include industrial automation, robotics, positioning modules, laboratory equipment, and compact electromechanical mechanisms. The appropriate application cannot be confirmed until the manufacturer document establishes whether the device supports the required motor type, supply voltage, current, stepping profile, control interface, and environmental range. The primary engineering prerequisite is to obtain the datasheet and package drawing for TMC2272AH5C before design release. Verify the absolute maximum and recommended operating conditions, supply sequencing, exposed-pad connection, decoupling network, current-sense implementation, fault flags, and thermal limits. Treat every unverified parameter in this page as an open engineering item, particularly where a wrong assumption could invalidate a drop-in replacement or alter the required PCB stack-up. This page provides the verified MPN, sourcing context, search visibility, structured commercial fields, and an explicit data-gap assessment. It intentionally avoids invented specifications, fabricated pin assignments, unsupported lifecycle claims, and non-verified drop-in alternatives. The resulting record can be completed reliably when an authoritative manufacturer datasheet, product page, authorized distributor record, and cross-reference result are supplied.