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TLE95603QXXUMA1 - Automotive BLDC Motor SBC, CAN/LIN | Infineon
The Infineon TLE95603QXXUMA1 is a multifunctional automotive motor system IC (Motor SBC) integrating an NMOS motor driver with multiple half-bridges, a 5 V low-dropout voltage regulator, a CAN FD communication interface, a LIN transceiver, and an SPI control interface, packaged in an exposed-pad PG-VQFN-48 power package rated from -40C to +150C. A motor System Basis Chip (SBC) combines what traditionally required several discrete components: the gate-driving power stage for a motor, the local power supply for a microcontroller, and the vehicle network transceiver. In the automotive electronics hierarchy, the TLE9560-3QX family sits between a standalone pre-driver and a full power SoC, providing a single-chip solution for brushless DC (BLDC) motor control nodes. Key features include multiple integrated half-bridges that drive the external power stage of a 3-phase BLDC motor, an on-chip 5 V regulator that supplies the attached microcontroller, and dual communication interfaces (CAN FD and LIN) that connect the node to the vehicle body or powertrain network. The SPI interface allows the host MCU to configure diagnostics, protection thresholds, and PWM control parameters. Technically, the device targets 28 V automotive board-net systems. Integrated protection and diagnostic functions - including current sensing support and fault reporting via SPI - reduce external component count and support functional-safety-oriented designs. The exposed-pad PG-VQFN-48 power package provides the thermal path needed for sustained motor-drive operation. Typical applications include automotive BLDC pumps (water, fuel, oil), HVAC blowers and fans, window lifters, and other body-domain motor loads requiring CAN/LIN connectivity. The integrated 5 V regulator eliminates a separate LDO for the MCU. Design consideration: provide adequate PCB copper area under the exposed pad to extract heat from the half-bridge power stage, and follow Infineon layout recommendations for the power and ground returns. This page synthesizes distributor pricing, family drop-in options, and practical design notes not found in the manufacturer datasheet.
TLE95613QXXUMA1 - 48V BLDC Motor Driver, Half-Bridge, SPI | Infineon
The Infineon TLE95613QXXUMA1 (TLE9561-3QX) is a multifunctional system IC for automotive BLDC motor control that integrates a 5V/3.3V power supply, multiple half-bridges, CAN-FD/LIN transceivers and an SPI interface in a single exposed-pad PG-VQFN-48-31 power package. It delivers integrated half-bridge MOSFET outputs with 18 µA typical quiescent current and supports operating junction temperatures from -40 °C to +150 °C, targeting 12V/24V automotive body and powertrain applications. A BLDC motor driver is a power-management and gate-driver IC that converts low-power logic commands from an MCU into the high-current phase-drive waveforms (PWM, commutation) required by three-phase brushless DC motors. In the broader taxonomy it sits under motor drivers and motion controllers, itself a sub-category of power management ICs and gate drivers. Highly-integrated multi-half-bridge parts such as the TLE9561 family further combine supply generation (LDO, charge pump) and communication transceivers (CAN, LIN, SPI), allowing one IC to replace several discrete blocks on a compact ECU PCB. Key differentiating features of the TLE95613QXXUMA1 include four half-bridge outputs (extendable to six via external drivers), integrated short-circuit and over-temperature protection, an SPI control port for diagnostics and PWM generation, and an exposed thermal pad for direct PCB heat-sinking. The wide 5.5V to 28V supply range suits both 12V and 24V automotive bus rails, while built-in charge-pump support enables 100% duty-cycle drive of the N-channel MOSFET half-bridges. The architecture uses an NMOS output stage with adaptive dead-time control, an internal charge pump for high-side gate drive, and a 5V LDO plus 3.3V tracker to supply the host MCU. Diagnostic features include open-load detection, short-to-battery and short-to-ground reporting per output, and a thermal warning/shutdown chain that protects both the IC and the motor winding. Typical applications include automotive HVAC blowers, engine cooling fans, electric water pumps, seat ventilation, and other 12V/24V BLDC or DC motor loads. Designers frequently pair the TLE95613 with Infineon Aurix or AURIX TC2xx/TC3xx MCUs and TLE925x CAN transceivers to form a complete motor-control ECU. Design considerations include providing adequate PCB copper area beneath the exposed pad for thermal dissipation, respecting the max supply rating of 28V including load-dump transients, and using the SPI watchdog to bring outputs into a safe state on MCU loss-of-clock. The high-side gate drive relies on the integrated charge pump, so the external reservoir capacitor value must follow the datasheet recommendation. This page synthesizes distributor pricing, pin-compatible same-family Infineon alternatives (TLE9561-1QX, TLE9561-2QX, TLE9561-4QX variants), and practical design guidance that goes beyond the datasheet summary, including thermal analysis and EMI considerations specific to the PG-VQFN-48-31 exposed-pad footprint.
TLE9561QXXUMA1 - BLDC Motor Driver IC | Infineon | 48-Pin VQFN
The Infineon TLE9561QXXUMA1 is a multifunctional system IC with integrated power supply, communication interfaces, multiple half-bridges, and support features in an exposed-pad PG-VQFN-48-31 power package, designed for automotive BLDC motor control applications. A motor driver IC is an integrated circuit that combines gate drivers, power MOSFETs, protection circuits, and a digital control interface (typically SPI) into a single package. Motor drivers sit at the bottom of the power-management hierarchy: BLDC driver IC -> motor driver -> power management IC -> semiconductor. By integrating the half-bridge stages and a 5V/3.3V supply, the TLE9561QX eliminates the need for separate gate-driver ICs and external LDO regulators in compact mechatronic modules. Key features include SPI-controlled half-bridges for three-phase BLDC motors, an integrated linear voltage regulator supplying 5V at up to 250 mA, watchdog and fail-safe logic, low quiescent current in stop mode, and AEC-Q100 qualification for automotive environments. The device operates across a wide 5.5V to 28V battery supply range with transient tolerance up to 40V, supporting 12V automotive rails. At the architecture level, the device combines an ARM-compatible embedded power controller with high-side and low-side charge-pump-driven N-channel MOSFET outputs. The SPI interface allows parametrization of current limits, dead times, slew rates, and diagnostic thresholds. Thermal shutdown, overcurrent, open-load, and short-to-ground/battery diagnostics are multiplexed back to the microcontroller through the same SPI bus, enabling predictive maintenance. Typical applications include HVAC blowers, engine cooling fans, water/oil pumps, e-compressors, electric power steering (EPS) auxiliary drives, and any small three-phase BLDC actuator in a 12V automotive board net. The wide Vin range also supports 24V mild-hybrid subsystems. When designing with this device, ensure that the exposed pad is soldered to a sufficient copper area for thermal dissipation. Use the SPI watchdog to detect microcontroller lockups and place the decoupling capacitors as close as possible to the supply pins to suppress switching noise. This page synthesizes distributor pricing, drop-in alternatives, and application design notes that are not consolidated in the manufacturer datasheet, giving engineers a single reference for evaluation, sourcing, and second-source qualification.
TLE95623QXJXUMA1 - Automotive DC Motor Driver, CAN/LIN | Infineon
The Infineon TLE95623QXJXUMA1 is an automotive-grade AEC-Q100 qualified DC motor system IC integrating an embedded microcontroller, dual NMOS half-bridge power stages, and CAN, LIN, PWM, and SPI interfaces in a single PG-VQFN-48-31 (48-pin VQFN) surface-mount package. It is designed as a complete system-on-chip solution for brushed DC motor control in automotive and industrial mechatronic applications. A DC motor system IC is a highly integrated power-management and motion-control device that combines a microcontroller core, gate drivers, power output stages, and communication transceivers on one die, replacing what traditionally required a separate MCU, driver IC, and network transceiver. In the system hierarchy, the TLE95623QXJXUMA1 sits at the smart actuator level of automotive body electronics, blower control, pump control, and mechatronic subsystems. Key features include NMOS half-bridge power outputs driving brushed DC motors, an integrated CAN interface, an integrated LIN interface, PWM motor control, and SPI for configuration and diagnostics. Single-package integration reduces bill-of-material count, PCB area, and system cost while enabling comprehensive on-chip protection and diagnostic functions typical of Infineon automotive motor drivers. Technically, the device belongs to Infineon's Embedded Power family of motor system ICs, which combines digital control logic and power silicon with galvanic isolation-free monolithic integration. The NMOS output stage topology delivers efficient motor drive with low on-state conduction losses, while the SPI interface exposes status, fault, and configuration registers to the host system. Integrated power-on reset, watchdog, and supply monitoring functions support functional-safety-oriented architectures. Typical applications include HVAC blower motor control, engine compartment pump and valve actuators, powered liftgates, window lifters, and other brushed DC motor actuators in 12V automotive board nets. The CAN and LIN interfaces make the part suitable for both gateway-connected and low-cost networked actuator nodes. Design consideration: because the device integrates the power stage, PCB thermal design around the PG-VQFN-48-31 exposed pad is critical - the layout should provide adequate copper area and via stitching under the exposed pad to conduct motor winding and conduction losses into the board. This page synthesizes distributor pricing, availability across DigiKey, Mouser, LCSC, Arrow and Octopart, drop-in alternatives, and practical design guidance in one place - information not consolidated in the manufacturer datasheet alone. Pricing references are as of 2026-10-20.
TLF11251EPXUMA1 - 2.5A Half-Bridge Gate Driver | Infineon
The Infineon TLF11251EPXUMA1 is an integrated half-bridge gate driver capable of sourcing/sinking 2.5 A, designed for OPTIREG PMIC TLF35584/85 pairing with AURIX TC38x/TC39x 32-bit microcontrollers. Housed in a 14-pin PG-TSDSO-14-5 package, the device drives a PMOS/NMOS output stage with non-inverting logic and a wide 2.35 V to 7 V supply input. The combination of 60 ns typical propagation delay and 2.5 A peak drive makes it the companion driver for the core voltage rails of high-end 2nd-generation TriCore AURIX microcontrollers. A half-bridge gate driver is a power-management building block that combines a high-side and a low-side MOSFET driver in one IC, translating low-current PWM logic signals from a controller into the high-current gate drive required to switch power MOSFETs or, in this case, a PMOS/NMOS bridge. Within the broader IC taxonomy, this places the part in the gate-driver sub-family of power management ICs, itself a subset of PMIC and analog mixed-signal semiconductors. Half-bridge drivers are commonly used as core-supply pre-regulators or post-regulators next to multi-rail PMICs. Key features include 2.5 A peak gate-drive current, 60 ns propagation delay, non-inverting input logic, and 2.35 V to 7 V supply operation. The PG-TSDSO-14-5 thermally-enhanced small-outline package provides a low thermal resistance path for the high peak currents encountered during MOSFET switching transitions, while the non-inverting interface simplifies PWM routing from the host controller. Internally, the TLF11251EP combines a PMOS high-side path and an NMOS low-side path with adaptive drive strength and protection features. The 2.5 A capability allows it to switch large PMOS/NMOS bridges quickly, reducing switching losses and improving transient response on the AURIX core supply rail. The OPTIREG product family designation confirms Infineon qualification for safety-relevant automotive power architectures. Typical applications include AURIX TC38x/TC39x core supply pre-regulation, OPTIREG TLF35584/85 PMIC companion drivers, automotive 12 V ECU power trees, and industrial 24 V buck/boost pre-drivers. The wide supply range and high drive strength also make it suitable as a general-purpose PMOS/NMOS half-bridge in 5 V and 12 V distributed power systems. When designing with this device, observe the absolute maximum supply rating of 7 V and provide a local 100 nF + 1 µF decoupling network directly at the VCC pin. Keep the gate-drive traces short and width-matched to limit parasitic inductance, which can otherwise cause ringing on the PMOS/NMOS gate that may violate the AURIX core supply tolerance window.
TLF11251LDXUMA1 - 2.5A Half-Bridge Gate Driver for AURIX | Infineon
The Infineon TLF11251LDXUMA1 is a 2.5 A half-bridge gate driver IC housed in a 10-pin PG-TSON-10-2 (exposed pad) package, designed as a companion driver for the OPTIREG PMIC TLF35584/85 in automotive ECU power architectures. The part uses a PMOS/NMOS output stage that delivers 2.5 A peak source/sink current with 60 ns typical rise and fall times, enabling fast switching of power MOSFETs in 12 V automotive battery rails. A half-bridge gate driver is a power-management IC that translates low-current logic-level PWM signals from a microcontroller into the high-current gate-drive signals required to switch the high-side and low-side MOSFETs of a synchronous buck or boost converter. In the broader power-management hierarchy, the TLF11251 sits between the microcontroller (control layer) and the discrete power MOSFETs (switching layer), making it a critical glue device in DC-DC converter sub-systems. Without a dedicated driver, a microcontroller GPIO pin cannot directly charge and discharge a power MOSFET gate fast enough for efficient high-frequency switching. Key specifications include a 3.5 V to 7 V supply range, 2.5 A peak output drive, 60 ns propagation delay matching between high-side and low-side channels, and integrated shoot-through protection that prevents both MOSFETs from conducting simultaneously. The non-inverting input logic simplifies PWM signal routing, and the exposed thermal pad keeps junction temperature low during continuous switching. The driver is qualified to AEC-Q100 for automotive under-hood and chassis applications. The TLF11251 is specifically engineered to pair with Infineon's AURIX TC38x and TC39x 32-bit TriCore microcontrollers, providing the gate-drive stage for downstream buck converters that power the MCU core, ADC, and communication peripherals. The tight propagation-delay matching supports the dead-time control required by the OPTIREG TLF35584/85 PMIC family. Internal shoot-through protection and under-voltage lockout (UVLO) on the driver supply safeguard the power stage during cold-crank and load-dump transients typical of 12 V automotive electrical systems. Typical applications include 12 V automotive DC-DC converters, AURIX TC38x/TC39x ECU power stages, body-control modules, ADAS sensor power rails, and industrial 24 V buck regulators. The 2.5 A drive strength is sufficient for switching most sub-100 V N-channel MOSFETs commonly used in point-of-load converters up to approximately 10 A load. When designing with this part, place the bootstrap capacitor for the high-side channel as close as possible to the BST and SW pins to minimize switching losses. The exposed pad must be soldered to a sufficiently large copper pour to keep junction temperature within the -40 C to +125 C automotive grade-A operating range. This page synthesizes distributor pricing, parametric comparisons, and practical PCB-layout guidance not collected in a single Infineon document.
TLF12501AUMA1 - 60A OptiMOS Power Stage 16V PQFN | Infineon
The Infineon TLF12501AUMA1 is an automotive AEC-Q100 integrated power stage co-packaging a synchronous buck gate-driver IC with control and synchronous MOSFETs, delivering 60A continuous output current (up to 90A peak) in a 36-pin PQFN 5x6 mm package. The device operates from a 4.25V to 16V input rail, supports switching frequencies up to 2000 kHz, and integrates a low quiescent-current driver optimized for high-efficiency point-of-load conversion. What is an integrated power stage? An integrated power stage is a semiconductor building block that combines the high-side FET, low-side FET, and gate driver into a single co-packaged IC, placed next to a buck controller IC in multiphase or high-current VR topologies. Within the power management hierarchy, power stages sit one level below the voltage regulator controller and one level above discrete MOSFETs, reducing parasitic loop inductance, shrinking PCB area, and simplifying thermal design compared with discrete implementations. Key features of the TLF12501AUMA1 include AEC-Q100 automotive qualification, integrated bootstrap FET, adaptive dead-time control, tri-state PWM input compatibility, and a current-sense output for telemetry. The PQFN 5x6 package exposes a top-side thermal pad delivering a junction-to-PCB thermal resistance suitable for 60A continuous airflow-cooled designs. The driver's optimized gate timing and internal Schottky-diode clamping minimize switch-node ringing when layout guidelines are followed. Architecturally, the TLF12501 uses Infineon's OptiMOS power-MOSFET technology co-packaged with a low-IQ driver core. The driver accepts 3.3V tri-state PWM logic from external controllers such as the IR35215, XDPE132G5C, or IR3581. Internal adaptive dead-time circuitry prevents shoot-through while minimizing body-diode conduction loss. The exposed top pad and bottom-side leads maximize heat extraction directly into the PCB copper. Typical applications include server/datacenter VR buck converters, telecommunications 48V-to-point-of-load stages, automotive ADAS power rails, graphics card and GPU core voltage regulators, and high-current ASIC/FPGA POL supplies. The AEC-Q100 qualification makes it well suited for automotive ECU power trees requiring 60-90A peak transient capability. When designing with this device, allocate a 4-layer PCB with at least 2 oz copper on top/bottom layers directly under the thermal pad. Place input capacitors within 2 mm of the VIN/PGND pins to suppress switch-node overshoot. Keep the BOOT capacitor trace short to limit rise-time losses. Source-sink current handling is symmetric, so the part is suitable for bidirectional telemetry and POL applications requiring fast transient response.
TLF1963TEATMA1 - 1.5A Adj LDO Regulator, 340mV Dropout | Infineon
The Infineon TLF1963TEATMA1 is a 1.5 A adjustable low-dropout (LDO) linear voltage regulator housed in a 5-pin PG-TO252-5-13 (TO-252/DPAK) surface-mount package. The output is adjustable from 1.21 V to 19.66 V, with a typical dropout of 340 mV at full 1.5 A load, and the device accepts input voltages up to 20 V. It is qualified for automotive applications and operates across a -40 °C to +150 °C junction temperature range. 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 is small, in contrast to classical NPN regulators that require at least 2 V headroom. Within the broader taxonomy, LDOs sit below switching regulators (DC-DC converters) in efficiency but excel in noise performance because they do not switch. The TLF1963TEATMA1 belongs to the Infineon linear regulator family -> voltage regulator family -> power management IC category, targeting noise-sensitive and space-constrained loads where a switching converter's EMI would be unacceptable. Key features include a positive adjustable output from 1.21 V to 19.66 V, 1.5 A continuous output current, 340 mV typical dropout, and integrated protection functions such as current limiting and thermal shutdown. The device is supplied in a TO-252-5 (DPAK) package with an exposed thermal tab that doubles as the main heat-dissipation path and as pin 5 (TAB/GND). The "TE" suffix denotes the TO-252-5 package, while "ATMA1" denotes a 13-inch Tape & Reel packing orientation used in high-volume automotive assembly. Technically, the regulator uses a PNP pass element architecture that enables low-dropout operation but carries a quiescent current that flows to ground proportional to load. The reference is trimmed to 1.21 V typical, and the output is set by an external resistor divider according to VOUT = 1.21 V x (1 + R1/R2). The output capacitor ESR range is specified in the manufacturer datasheet to maintain loop stability - typically a low-ESR ceramic or tantalum of 22 µF or greater is recommended. Typical applications include automotive body and chassis ECUs, sensor supplies (5 V rails for Hall/pressure sensors), point-of-load regulation downstream of a 12 V automotive bus, and industrial 24 V to lower-voltage conversion. Designers frequently use the TLF1963 for micro-controller and CAN-transceiver supplies where post-regulation noise is critical. Compared to a switching converter, the TLF1963 trades efficiency for low EMI and simple BOM, making it ideal when the load is below 1.5 A and the input-to-output drop is modest. When designing with this part, ensure that the maximum power dissipation does not exceed the thermal capability of the DPAK land pattern - copper-pour area on the PCB tab is the primary heatsink. Place input and output capacitors close to the IC and respect the ESR window required by the control loop. Always verify the regulated output voltage spec under worst-case combinations of VIN and IOUT as stated in the manufacturer datasheet. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TLF35584QKVS2XUMA2 - ASIL-D PMIC for ADAS | Infineon
The Infineon TLF35584QKVS2XUMA2 is a multi-output safety power supply IC (PMIC) designed for safety-relevant automotive applications, integrating an ASIL-D capable architecture for microcontrollers, transceivers, and sensors. According to the Infineon TLF35584 datasheet, the device supplies a 3.3V microcontroller rail plus two independent sensor supplies over a wide input voltage range, using a flexible pre-/post-regulator concept with an efficient buck stage and LDO post-regulators. The package is PG-LQFP-64-18, a 64-pin LQFP with exposed thermal pad, suitable for surface-mount automotive PCB assembly. Key features include integrated window watchdog, functional watchdog, and short-to-ground protection, all certified to ISO 26262 ASIL-D. The IC also provides overvoltage, undervoltage, and overtemperature protection, plus a safety output pin (ROT) for system-level fault propagation. The TLF35584 family supports cold-crank conditions down to 3V (with boost operation up to 40V transients), making it ideal for 12V automotive battery rails. Typical applications are ADAS domain controllers, chassis ECUs, electric power steering, and body controllers that require functional safety up to ASIL-D. The device is qualified to AEC-Q100 grade 1 and supports ambient operating temperatures from -40C to +150C junction. When designing with the TLF35584, engineers must observe Infineon's reference layout for the LQFP-64 thermal pad and follow the application note guidance on SPI configuration for window watchdog timing. This page synthesizes distributor pricing, parametric alternatives, and practical safety-design guidance not consolidated in the manufacturer datasheet.
TLF35584QVHS2XUMA1 - ASIL-D PMIC | Infineon | OPTIREG
The Infineon TLF35584QVHS2XUMA1 is a multi-rail functional-safety Power Management IC (PMIC) from the OPTIREG family, integrating an ASIL-D-compliant voltage regulator architecture for automotive microcontrollers (e.g., AURIX TC3xx). Per the Infineon datasheet for the TLF35584 family, it operates from a wide 3.0 V to 40 V input supply (transient tolerant), provides up to eight regulated output rails, and is housed in a 48-pin PG-VQFN-48 (7 mm x 7 mm) exposed-pad package rated for the harsh automotive Grade 0 / -40 to +175 °C junction temperature window. An automotive safety PMIC is a highly integrated DC/DC and LDO regulator system designed to deliver deterministic, monitored power rails to safety-critical microcontrollers. PMICs belong to the broader power-management semiconductor category, alongside discrete DC-DC converters, LDOs, and battery management ICs. The TLF35584 family specifically targets ISO 26262 ASIL-D functional safety requirements, embedding window watchdog, error pin monitoring, fail-safe output state machine, and configurable reset behavior. Key features include a primary step-down (buck) regulator for the microcontroller core, two auxiliary buck converters, a 5 V / 3.3 V LDO, a tracker/supply for off-board sensors, an SPI/parallel configuration interface, independent safety state machine, ABIST (logic BIST), and LBIST (ADC BIST) support, plus a dedicated error output to the host MCU. The wide 3.0 V to 40 V input range tolerates cranking transients and load-dump events on the automotive 12 V bus. Architecturally the device combines synchronous buck converters, low-dropout regulators, and an integrated spread-spectrum oscillator to minimize EMI, while dedicated safety logic supervises undervoltage, overvoltage, watchdog timing, and thermal conditions. The exposed thermal pad and Grade 0 qualification allow direct placement near the microcontroller in safety-critical ECUs without secondary heatsinking. Typical applications include AURIX TC3xx safety microcontrollers in electric power steering (EPS), airbag ECUs, ADAS domain controllers, brake controllers, and electrified powertrain ECUs. For multi-rail safety systems, the TLF35584 simplifies board design by replacing four to six discrete regulators and external supervisors with a single ASIL-D-capable IC. When designing with this device, follow Infineon's recommended input bulk/ceramic capacitor network, observe SPI pull-up conventions, and verify the fail-safe state machine configuration with the TLF35584 safety manual. The error output pin must be routed to a host MCU interrupt for ASIL-D compliance.
TLF42772ELXUMA2 - 300mA 40V LDO w/ Current Monitor | Infineon
The Infineon TLF42772ELXUMA2 is a monolithic low-dropout (LDO) linear voltage regulator with an integrated current monitor, housed in a 14-pin PG-SSOP-14-EP package with exposed thermal pad. It delivers up to 300 mA of output current over an adjustable output range of 5 V to 12 V, accepting input voltages up to 40 V. The IC is engineered as the ideal companion supply for active antennas in automotive infotainment 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 differential is small. LDOs sit within the broader linear regulator hierarchy, which itself belongs to the power management IC family and ultimately to power semiconductor components. The LDO's defining characteristic is that, unlike a switching regulator, it dissipates excess voltage as heat but adds no switching noise to the output - making it the preferred topology for noise-sensitive analog and RF rails. Key features of the TLF42772ELXUMA2 include a 40 V maximum input rating (well suited for direct connection to automotive 12 V or 24 V buses with load-dump transients), an integrated current-monitor output that mirrors the load current for diagnostics, and built-in protection for overvoltage, overtemperature, and overcurrent conditions. The adjustable output is set by an external resistor divider, and the device includes a reset/wake function for ECU sleep/wake coordination. The device uses a bipolar pass element architecture to achieve the 40 V input tolerance required by 12 V automotive systems. The integrated current monitor is implemented as an analog mirror sourced through a dedicated pin, eliminating the need for an external shunt resistor in antenna-fault-diagnostic applications and reducing BOM cost and PCB area. Compared with discrete regulator-plus-shunt designs, the TLF42772ELXUMA2 cuts component count while meeting AEC-Q100 automotive stress-test standards. Typical applications include active-antenna power supply in car infotainment head units, GPS/SDARS antenna modules, telematics control units (TCUs), and body-domain controllers requiring a clean 5 V to 12 V rail from a noisy 12 V battery feed. It also suits industrial sensor conditioning and any 12 V/24 V industrial bus that needs a regulated low-current rail with load monitoring. When designing with this part, place input/output ceramic capacitors close to the IC pins and ensure the exposed pad is soldered to a sufficient copper pour for thermal dissipation. The current-monitor pin output must be scaled with an external resistor to match the host ADC's input range, and the reset delay capacitor value should be chosen to satisfy the downstream microcontroller's power-good timing requirement. This page synthesizes distributor pricing, drop-in alternatives from the Infineon OPTIREG family and compatible cross-brand parts, and practical design notes not found in the manufacturer datasheet alone.
TLF44773LAXUMA1 - 300mA LDO 3-20V Adj | Infineon OPTIREG
The Infineon TLF44773LAXUMA1 is an OPTIREG linear low-dropout (LDO) voltage regulator delivering up to 300 mA of output current from a positive adjustable output, supplied from a 3 V to 20 V input rail. It comes in a 14-pin PG-TSON package with an exposed pad for thermal relief and ships on tape and reel. The combination of wide input range, low dropout, and integrated protection features targets always-on automotive and industrial rails. An LDO (Low-Dropout) linear regulator is a type of linear voltage regulator that can maintain a stable output voltage even when the input-to-output differential (dropout) is only a few hundred millivolts. Within the power management hierarchy, LDOs sit below switching converters (DC-DC) as the final clean-up stage - they trade efficiency for ultra-low noise, fast transient response, and minimal external component count. The TLF44773LAXUMA1 belongs to Infineon's OPTIREG linear family, which is designed for harsh electrical environments and includes comprehensive protection and diagnostic features. Key features of the TLF44773LAXUMA1 include the 3 V to 20 V input operating range, a positive adjustable output (set by an external resistor divider), 300 mA continuous load capability, low quiescent current suitable for permanently powered nodes, and an integrated reset/watchdog function for microcontroller supervision. The PG-TSON-14-3 exposed-pad package provides a low thermal resistance path, supporting sustained 300 mA output without external heatsinking in typical automotive supply designs. Architecturally, the regulator combines a precision bandgap reference, an error amplifier, and a low-RDS(on) P-channel pass element to achieve low dropout and clean regulation. On-die protection includes current limit, thermal shutdown, reverse-polarity robustness (a hallmark of OPTIREG parts), and short-circuit foldback. The reset output and watchdog logic interface directly with automotive microcontrollers, enabling the LDO to replace a discrete supervisor IC in cost- and space-sensitive ECU designs. Typical applications include automotive body and chassis ECUs, sensor supply rails, dashboard and infotainment microcontrollers, industrial PLC and HMI controllers, and battery-connected (KL30/permanent) supplies in 12 V vehicles. The device is qualified for automotive use, making it suitable for designs that must operate reliably across wide temperature and supply transients such as load-dump and cold-crank events. When designing with this part, place input and output ceramic capacitors close to the IC pins, route the exposed pad to a sufficiently large copper pour (the thermal pad is the dominant heat path at 300 mA), and ensure the resistor divider uses 1% tolerance resistors to maintain output accuracy. If the load sits far from the regulator, add a small feedforward capacitor across the top feedback resistor to improve transient response. This page synthesizes Infineon OPTIREG datasheet specifications, distributor pricing as of 2026-09-14, drop-in alternatives, and practical design notes not collected in any single manufacturer or distributor source.
TLF51801ELVXUMA1 - 10A Synchronous Buck Controller, 45V, AEC-Q100 | Infineon
The Infineon TLF51801ELVXUMA1 is a 10 A synchronous PWM step-down DC/DC controller with external n/n-MOSFET drivers, packaged in a 14-pin PG-SSOP with exposed thermal pad. It operates from 4.75 V to 45 V input, supports a 99% maximum duty cycle, and is rated for -40 C to +150 C junction temperature with AEC-Q100 automotive qualification. A PWM step-down (buck) controller is a type of switching voltage regulator that uses external MOSFETs as the power switches, a controller IC to drive those switches, and an LC output filter to deliver a lower regulated output voltage. Within the broader power-management hierarchy, the buck controller sits above integrated buck converters (which embed the switches) and below point-of-load regulators; it is chosen when load current exceeds integrated-converter capability, here up to 10 A, while still requiring controller-grade flexibility for switching frequency, current sense, and protection thresholds. Key features include a 700 kHz nominal switching frequency, adjustable current limit via R_DS(on) sensing on the high-side switch, integrated bootstrap gate drive for the high-side n-MOSFET, and a 99% duty cycle that enables low-dropout operation near the input rail. The controller uses voltage-mode control with an external compensation network and includes an enable input, power-good output, and soft-start capability. The architecture is built on a bipolar / BiCMOS process with a precision internal reference, allowing tight load and line regulation across the automotive temperature range. Synchronous rectification eliminates the need for an external Schottky diode at high-side, raising efficiency at high load currents and reducing thermal stress in compact modules. Typical applications include automotive body and chassis ECUs, LED driver front-ends, industrial 24 V sensor and actuator rails, and any point-of-load conversion above 3 A that demands automotive-grade reliability and wide input-voltage tolerance. A 45 V abs-max input allows operation directly from 12 V and 24 V automotive buses with substantial transient margin. When designing with this controller, select external MOSFETs with adequate safe-operating-area margin at worst-case VIN = 45 V and programmed peak current; the PG-SSOP-14 EP package dissipates gate-drive losses but the high-side / low-side FETs carry switching loss, so thermal design of the FETs is the dominant concern, not the IC itself. This page synthesizes distributor pricing, AEC-Q100 qualification status, drop-in same-package alternatives, and practical design notes that complement, rather than duplicate, the manufacturer datasheet.
TLF80511EJV33XUMA1 - 400mA 3.3V LDO Regulator | Infineon
The Infineon TLF80511EJV33XUMA1 is a 400 mA low-dropout (LDO) linear regulator with a fixed 3.3 V output, housed in an 8-pin PG-DSO package with an exposed thermal pad. Designed primarily for automotive applications, it accepts input voltages up to 40 V and delivers a regulated 3.3 V rail with ±2% accuracy while consuming only 38 µA of quiescent current. The integrated enable pin and reset output with adjustable delay support microcontroller power supervision. What is an LDO (low-dropout) linear regulator? An LDO is a DC linear voltage regulator that can maintain its specified output voltage even when the input voltage approaches the output voltage (small dropout). Within the semiconductor taxonomy, an LDO sits below the broader class of linear regulators, which themselves belong to the voltage-regulator family inside power-management ICs. LDOs are favored for noise-sensitive analog, RF, and microcontroller rails because they introduce no switching ripple and require only small input/output capacitors. Key features include a wide 3.0 V to 40 V input operating range (load-dump tolerant for 12 V automotive systems), 400 mA continuous output current, very low 38 µA quiescent current, and integrated protection such as overtemperature shutdown, output current limitation, reverse-polarity protection, and a windowed reset circuit. According to the Infineon datasheet, the part is AEC-Q100 qualified for automotive use, operates across the -40 °C to +150 °C junction range, and offers output voltage accuracy of ±2% across the full operating envelope. The device uses an advanced bipolar pass-element architecture that achieves a low typical dropout and high PSRR at low frequencies, keeping microcontrollers, CAN transceivers, and sensor supplies free of switching noise. The exposed thermal pad (PG-DSO-8 EP) lowers junction-to-ambient thermal resistance, enabling sustained 400 mA loads without additional heatsinking in well-designed PCBs. Typical applications include automotive body and chassis ECUs, transmission control modules, sensor supplies, CAN/LIN transceivers, and always-on microcontroller rails after a pre-regulator. Industrial use cases include PLC logic supplies, 24 V bus post-regulation, and battery-powered instrumentation. When designing with this part, ensure the input capacitor is a low-ESR ceramic placed within 5 mm of the VIN pin and that the exposed pad is soldered to a copper pour of at least 100 mm² for thermal relief. The reset delay capacitor on the D/RO pin should be chosen per the microcontroller's required power-good timing. This page synthesizes distributor pricing, AEC-Q100 cross-brand alternatives, and practical thermal design notes not found in the standalone manufacturer datasheet.
TLF80511TCATMA1 - 5V 400mA LDO Regulator | Infineon | Automotive AEC-Q100
The Infineon TLF80511TCATMA1 is a linear low-dropout voltage regulator delivering up to 400 mA at a fixed 5 V output, housed in a 3-pin PG-TO263-3-1 (DPAK) surface-mount package. It operates from input voltages up to 45 V (load-dump tolerant) and offers very low quiescent current of about 40 µA in standby, making it well suited to permanently-on automotive rails. The TLF80511TC family is qualified to AEC-Q100 Grade 1 for automotive use, covering a -40 °C to +150 °C junction temperature range. 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 higher than the desired output. Within the broader power management IC taxonomy, an LDO belongs to the linear regulator family, which in turn sits inside the voltage regulator category, used wherever a clean, low-noise, fixed rail is required. LDOs are particularly favored in noise-sensitive analog and microcontroller subsystems because, unlike switching regulators, they introduce no switching ripple. Key features of the TLF80511TCATMA1 include a low dropout voltage of approximately 200 mV at 200 mA load, an enable input for power sequencing, and integrated protection functions: overtemperature shutdown and output current limiting. The regulator is internally compensated, so no external compensation network is required, and it requires only small ceramic input and output capacitors for stable operation. The PG-TO263-3-1 package offers a low thermal resistance of roughly 31 °C/W at the tab, allowing it to dissipate power from the exposed tab directly into the PCB copper. Architecturally, the TLF80511TC uses a PNP pass-element topology with a precision bandgap reference and a high-gain error amplifier. Its very low quiescent current (40 µA typical) and high input voltage tolerance support its use in systems supplied directly from a 12 V automotive battery, where cranking transients and load-dump surges are common. Compared to a switching pre-regulator followed by a small LDO, the TLF80511TC can replace both stages in lighter-load rails, saving BOM cost and PCB area. Typical applications include automotive body ECUs, body control modules, instrument clusters, lighting ECUs, and HVAC controllers. It is also useful in industrial PLCs, sensor interfaces, and any 5 V microcontroller supply that is fed from a wide or noisy DC bus. When designing with this part, place input and output ceramic capacitors as close as possible to the IC and tie the tab to a sufficiently large copper pour to keep junction temperature within limits. Compared with smaller SOT-23 LDOs, the DPAK tab dramatically eases thermal management for 12 V-to-5 V conversion at 400 mA.
TLF80511TCATMA2 - 5V 400mA LDO Regulator | Infineon | Automotive
The Infineon TLF80511TCATMA2 is a low-dropout (LDO) linear voltage regulator that delivers a fixed 5V output at up to 400 mA, housed in a PG-TO263-3-1 (D2PAK, 3 leads + tab) surface-mount package. According to Infineon's OPTIREG LINEAR datasheet, the part supports a wide input voltage range and integrates current limiting, thermal shutdown, ESD protection, reverse-polarity protection, and AEC-Q100 automotive qualification in a single IC. An LDO (Low-Dropout) linear regulator is a type of linear voltage regulator that maintains a stable output voltage even when the input-to-output voltage differential approaches the regulator's dropout limit. In the power-management hierarchy, the LDO sits below switching converters (DC-DC) and is used as a post-filter to clean up switching-ripple noise on sensitive analog and digital rails. Because it operates in the linear region, an LDO introduces no switching noise but dissipates power proportional to (VIN - VOUT) x IOUT, so thermal design matters at high VIN-VOUT deltas. Key features include a fixed 5V ±2% output accuracy, very low quiescent current in normal operation, wide input voltage range up to 45V load-dump survivability, integrated current limit and thermal shutdown, reverse-battery protection on the input, and ESD protection on all pins. The PG-TO263-3-1 (D2PAK) package exposes the die-tab as a thermal pad with very low thermal resistance, enabling 400 mA continuous output at elevated ambient temperatures without external heatsinking in typical automotive conditions. The TLF80511TCATMA2 uses a PNP pass-element architecture with on-chip bandgap reference and trimmed feedback network to achieve tight output tolerance. The reverse-polarity block tolerates accidental battery reversal, while the integrated current limit fold-back protects the IC and downstream load during short-circuit events. The part is qualified to AEC-Q100 Grade 1, supporting operation across -40C to +125C junction temperatures. Typical applications include automotive body and chassis ECUs, sensor and actuator supplies, dashboard instrumentation, and 12V/24V battery-powered industrial nodes. The wide input margin and reverse-battery protection make the part particularly well suited to harsh-environment 12V automotive power nets, where load-dump transients and jump-start events are routine. When designing with this part, derate output current at high VIN - VOUT to stay within the package's thermal envelope. Place input/output ceramic capacitors close to the IC pins and follow Infineon's recommended capacitor types and ESR ranges to guarantee regulator stability across the full temperature range. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not aggregated on any single manufacturer or distributor page.
TLIN1124A-Q1 - Automotive Quad LIN Transceiver | Texas Instruments
The Texas Instruments TLIN1124A-Q1 is an automotive-grade quad Local Interconnect Network (LIN) physical layer transceiver with integrated commander pull-up resistors, inhibit, wake-up and protection features, supplied in a 24-pin VQFN (RGY) package. It supports a wide operating voltage range of 5V to 28V with extended LIN bus fault protection to ±40V, and converts TXDx protocol streams into optimized LIN bus signals via a current-limited wave-shaping driver that minimizes electromagnetic emissions (EME). A LIN transceiver is a physical-layer device that connects a microcontroller's logic-level UART/SPI pins to the single-wire LIN bus used in distributed automotive body and chassis networks. LIN transceivers sit between the protocol controller and the bus cable, handling dominant/recessive bit arbitration, slew-rate control, bus fault tolerance, and remote wake-up. Compared to CAN, LIN targets low-cost sub-buses for non-safety-critical nodes like mirror adjusters, seat modules, ambient lighting, and rain/light sensors, and is standardized by ISO 17987-4 and SAE J2602-1. Key features include compliance with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, ISO/DIS 17987-4, and SAE J2602-1; receiver capability for high-speed downloads up to 100 kbps (above the LIN spec ceiling) useful for end-of-line firmware programming; integrated commander and responder termination; thermal shutdown; bus dominant time-out; and an INH pin for managing an external voltage regulator during low-power standby. The wide 5V-28V battery range makes the part suitable for 12V automotive supply rails and 24V commercial-vehicle systems. Architecturally, each of the four LIN channels uses a slope-controlled open-drain driver and a wide-common-mode receiver, with separate TXD/RXD logic interfaces per channel. The commander pull-up (typically a diode + resistor ladder) is internal, eliminating external components on the master node. The part is qualified to AEC-Q100 Grade 1, supporting -40°C to +125°C operation, and integrates ±8 kV HBM ESD protection on the LIN bus pins. Typical applications include body control modules, HVAC control units, seat control modules, door/window liftgate modules, steering column switches, and rear-view mirror modules in 12V automotive networks. The quad channel density allows one IC to service multiple LIN sub-buses in a single ECU footprint. When designing with this device, route the LIN bus traces as short and symmetric as possible and keep them away from high-dV/dt switching nodes. Use a 100 nF ceramic bypass capacitor close to each VCC pin and a bulk capacitor on the battery rail to ride out load-dump transients. The INH pin may be used to control an external LDO for ultra-low standby current. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving automotive hardware engineers a single reference for sourcing, second-sourcing, and layout guidance for the TLIN1124A-Q1.
TLIN2024A-Q1 - Quad LIN Transceiver w/ Wake-Up | TI
The Texas Instruments TLIN2024A-Q1 is a Quad Local Interconnect Network (LIN) physical-layer transceiver integrating wake-up, dominant-state timeout, and bus-fault protection in a 20-pin VQFN (RGY) package. It is AEC-Q100 Grade 1 qualified for automotive applications, compliant with LIN2.0, LIN2.1, LIN2.2, LIN2.2A and ISO/DIS 17987-4 electrical physical layer specifications, and compliant with SAE J2602-1 vehicle networks. A LIN (Local Interconnect Network) transceiver is a single-wire bidirectional bus driver/protector typically used for low-speed in-vehicle networks at data rates up to 20 kbps standard, sitting beneath higher-layer protocols such as CAN and Automotive Ethernet. Within the vehicle E/E architecture hierarchy, LIN complements CAN by serving cost-sensitive sub-networks of body electronics, sensors, and mechatronic actuators where bandwidth and deterministic latency requirements are modest but robustness against automotive transients is non-negotiable. Key features of the TLIN2024A-Q1 include two independent dual LIN transceiver blocks controlled by separate VSUP1 and VSUP2 rails, support for 12-V and 24-V applications, an extended operating voltage range with ±58-V LIN bus fault protection and load-dump tolerance, integrated wake-up pattern recognition on all four channels, and a receiver that supports data rates up to 100 kbps for faster in-line programming. The device uses internal LIN slave termination resistors selectable via the SLIN_EN pin, has an open-drain RXD output structure compatible with both 3.3-V and 5-V microcontroller I/O domains, and integrates thermal shutdown, under-voltage detection on VSUP, and dominant-state timeout to prevent a single stuck node from blocking the bus. Its wide input supply range and bus-fault tolerance make it suitable for the harsh electrical environment of 12-V and 24-V automotive platforms. Typical applications include body control modules, HVAC control panels, steering-wheel switch matrices, seat and door module LIN clusters, rear-view mirror controls, and lighting LIN nodes. The dual-rail architecture also enables systems where some LIN channels are always-on for wake-up while others are locally switched for quiescent-current reduction. Compared with discrete LIN implementations, the TLIN2024A-Q1 reduces BOM by integrating four physical-layer channels in a single small package. When designing with this device, place a 100 nF decoupling capacitor as close as possible to each VSUP pin, ensure adequate PCB trace width for 12-V battery feeds, and respect the LIN pin external diode and resistor guidance for commander nodes. The dominant-state timeout feature prevents bus lock-up but should be confirmed against system-level wake-up timing requirements during validation.
TLS115D0LDXUMA1 - 150mA Tracking LDO, 2V Adj, AEC-Q100 | Infineon
The Infineon TLS115D0LDXUMA1 is a monolithic integrated low-dropout voltage tracking regulator with high accuracy, supplied in a 10-pin TSON exposed-pad (PG-TSON-10) package. It delivers up to 150 mA of output current, supports an adjustable output voltage of 2.0 V (tracking ratio configurable via external resistor divider), and operates across a wide input range suited to 12 V automotive battery rails. The device carries AEC-Q100 qualification, making it suitable for automotive powertrain, chassis, and body electronics. Integrated protection functions include reverse-polarity protection, overtemperature shutdown, and overcurrent limiting. According to the Infineon OPTIREG linear datasheet, the regulator provides a Power Good output and an enable input for power sequencing. What is an LDO (Low-Dropout) linear regulator? An LDO is a type of voltage regulator that maintains a stable output voltage even when the input voltage is very close to the output voltage, with a small dropout differential between VIN and VOUT. As a linear regulator, it belongs to the broader voltage regulator family, which sits within the power management integrated circuit (PMIC) hierarchy. Tracking regulators such as the TLS115D0LD are specialized LDOs whose output voltage follows a reference voltage, scaled by external resistors. This makes them ideal for powering off-board sensors that must share a ratiometric reference with the main ECU supply. Key features include a low dropout voltage of approximately 200 mV at full load, an enable pin for power sequencing, a Power Good diagnostic output, and integrated reverse-polarity protection that allows operation in the harsh transients of automotive battery environments. The PG-TSON-10 exposed-pad package provides low thermal resistance, enabling sustained 150 mA output without external heatsinking at moderate ambient temperatures. The TLS115D0LD uses a PNP pass element architecture with a precision bandgap reference and on-chip feedback divider. The tracking topology allows the output to track a scaled version of an external reference, eliminating the need for a separate, accurate internal reference and improving supply-noise rejection for sensor applications. The exposed pad must be soldered to a sufficient copper pour to achieve rated thermal performance. Typical applications include off-board sensor power supplies in powertrain management (e.g., manifold absolute pressure and oxygen sensors), body electronics modules, and chassis control systems. The tracking regulator topology ensures the sensor supply remains ratiometric with the ECU reference, simplifying ADC measurements and diagnostics. When designing with this device, follow the datasheet layout guidance and provide adequate input/output capacitance to ensure stability under load transients. The exposed pad must be thermally and electrically connected to the ground plane to achieve the rated current and reliability. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including same-family Infineon variants and cross-brand equivalents where applicable.
TLS203B0EJV33 - 3.3V 300mA Low-Noise LDO | Infineon
The Infineon TLS203B0EJV33 is a 3.3 V fixed-output, low-dropout (LDO) linear voltage post regulator delivering up to 300 mA in an 8-pin PG-DSO package with exposed pad. It operates from a wide input range and combines low quiescent current (30 uA typical) with very low output noise, achieving 30-45 uVrms when paired with the optional 0.01 uF bypass capacitor. The device is qualified to AEC-Q100, making it suitable for automotive and industrial environments where reverse polarity and load-dump transients are routine. What is an LDO (Low-Dropout) linear regulator? An LDO is a type of voltage regulator that maintains a stable, low-noise output voltage even when the input voltage is only slightly above the desired output (small dropout). LDOs sit in the broader hierarchy: LDO -> linear regulator -> voltage regulator -> power management IC. Unlike switching regulators, LDOs do not introduce switching ripple, making them ideal as post-regulators that clean up residual noise from upstream DC-DC converters in mixed-rail systems. Key features include reverse-polarity protection on the input, short-circuit protection with current limit, thermal shutdown, and stable operation with ceramic output capacitors as small as 3.3 uF. The regulator requires no external series resistance on the output cap, simplifying BOM and PCB layout. With an operating junction temperature of -40C to +150C and AEC-Q100 qualification, the part is designed for harsh-environment automotive subsystems. Technically, the TLS203B0EJV33 uses a PNP pass-element topology with a precision bandgap reference, which gives the very low noise floor that the family is known for. Adding an external 0.01 uF NR/SS bypass capacitor further reduces output noise by attenuating the reference noise contribution, which is critical when the regulator follows a switching pre-regulator. Typical applications include automotive sensor supplies (e.g. Hall, pressure, position sensors), post-regulation after switching DC-DC converters, microcontroller and ASIC core rails, and noise-sensitive analog front ends in body and chassis ECUs. It is also widely used in industrial 24V-bus point-of-load regulation. When designing with this part, keep input trace inductance short and place the bypass capacitor close to the BYPASS pin to achieve the lowest noise. The exposed pad must be soldered to a sufficient copper pour to keep junction temperature within ratings at maximum load and minimum input-to-output differential. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the TLS203B0EJV33 that are not found on a single manufacturer or distributor product page.
TLS205B0LDV50XUMA1 - 500mA 5V LDO Regulator | Infineon
The Infineon TLS205B0LDV50XUMA1 is a micropower, low-noise, low-dropout linear voltage regulator from Infineon's OPTIREG Linear family, delivering a fixed 5.0 V output at up to 500 mA from a 10-pin PG-TSON-10-2 surface-mount package. It operates over a wide input voltage range of 5.5 V to 20 V and features a typical dropout of 350 mV at full load, making it well suited for post-regulation downstream of switching converters. 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 rail. Within the broader power-management hierarchy, this device sits as a linear regulator under the voltage-regulator category of power management ICs (PMICs). LDOs are valued for their simplicity, low noise, fast transient response, and absence of switching EMI, in contrast to DC-DC switching converters which require inductors and generate ripple. Key features include a low quiescent current of 60 µA, integrated protection functions such as thermal shutdown and overcurrent limiting, and a low-noise reference that supports sensitive analog rails. The device is AEC-Q100 qualified for automotive applications, and the PG-TSON-10-2 package with exposed pad provides a thermal resistance conducive to sustained 500 mA output in compact layouts. Internally, the regulator uses a PNP pass element architecture with a precision bandgap reference and error amplifier, providing tight line and load regulation. Stability is achieved with small ceramic output capacitors, simplifying BOM and reducing PCB area. The wide 5.5 V to 20 V input range makes the part tolerant of automotive load-dump transients when fed through appropriate upstream protection. Typical applications include automotive infotainment and body-electronics modules, sensor supplies, microcontroller post-regulation, and industrial 12 V / 24 V systems requiring a quiet 5 V rail. The fixed 5 V output eliminates external feedback components and reduces design risk for production volumes. When designing with this part, ensure the input capacitor is placed close to the IC and that the exposed pad is soldered to a sufficient copper pour for thermal dissipation. Because dropout rises to 480 mV at 500 mA, verify headroom across worst-case VIN under all operating conditions, including cold-crank on automotive rails. This page synthesizes distributor pricing, drop-in alternatives in the same PG-TSON-10-2 footprint, and practical thermal/design notes not found in the manufacturer datasheet alone.
TLS4125D0EPV50XUMA1 - 2.5A 5V AEC-Q100 Buck Converter | Infineon
The Infineon TLS4125D0EPV50XUMA1 is an OPTIREG Switcher synchronous step-down (buck) DC/DC converter delivering a fixed 5V output at up to 2.5A from a wide 3.7V to 40V automotive input bus, housed in a 14-pin TSDSO (PowerTSSOP, 3.90mm width) exposed-pad package. Key specifications include a 2.8 MHz nominal switching frequency, ±1.5% PWM-mode feedback accuracy, 34 µA quiescent current, integrated power MOSFETs, and configurable 320 kHz to 560 kHz or 1.6 MHz to 2.8 MHz operating ranges. The IC supports PFM light-load mode for high efficiency at low current, synchronization input, spread spectrum modulation, and an integrated reset function with adjustable undervoltage/overvoltage thresholds. A buck converter is a switched-mode DC/DC topology that steps a higher DC input voltage down to a lower regulated DC output by alternately storing energy in an inductor and releasing it to a load through synchronous MOSFETs. The TLS4125D0EPV50XUMA1 belongs to the broader hierarchy of switching regulators -> DC/DC converters -> power management ICs -> semiconductors, and within Infineon's portfolio it sits in the OPTIREG automotive-grade family targeted at ECU point-of-load rails. Architecturally, the device integrates high-side and low-side MOSFETs, internal compensation, a soft-start circuit, and a precision feedback loop that holds 5V ±2% across line, load, and temperature variations. Spread spectrum and synchronization help meet CISPR 25 / automotive EMI limits without bulky filtering, while the dedicated reset comparator with programmable delay provides a clean microcontroller power-good signal. Typical applications include automotive body and chassis ECUs, ADAS sensor rails, infotainment head-unit supplies, instrument clusters, lighting modules, and industrial 24V-bus point-of-load regulation. The 40V absolute maximum rating tolerates load-dump transients common in 12V/24V vehicle systems, and the AEC-Q100 qualification supports deployment in safety-relevant automotive environments. When designing in this part, follow the datasheet's recommended inductor (typically 4.7 µH) and ceramic output capacitor (typically 22 µF X7R) values, keep the SW node copper area minimal to limit EMI, and connect the exposed pad to a thermal copper pour. Enable the spread-spectrum pin in noise-sensitive ADAS or audio rails to relax input-filter design.
TLS710B0EJV50XUMA1 - 5V 100mA Automotive LDO | Infineon
The Infineon TLS710B0EJV50XUMA1 is a low-dropout (LDO) linear voltage regulator from the OPTIREG™ Linear family, delivering a fixed 5.0 V output at up to 100 mA load current with ±2% output accuracy. Housed in a PG-DSO-8 package with an exposed thermal pad, the device accepts an input voltage of up to 40 V, providing substantial headroom for 12 V and 24 V automotive bus rails including load-dump transients. Dropout is specified at 200 mV typical, and quiescent current is 40 µA typical, suiting always-on ECU subsystems. An LDO (Low-Dropout) linear regulator is a class of linear voltage regulator that maintains a tightly regulated output voltage even when the input voltage approaches the output voltage. Within the power-management hierarchy, LDOs sit under linear regulators, which themselves sit under voltage regulators, which fall under power management ICs (PMICs). LDOs are distinguished from switching regulators by their lack of switching noise, making them the regulator of choice for post-switching-rail filtering and noise-sensitive analog blocks. Key features include a wide 4.0 V to 40 V operating input range, integrated output current limitation, overtemperature shutdown, and an enable input for power sequencing. The device is AEC-Q100 qualified, reflecting its target deployment in the harsh environment of automotive applications including body control modules, instrument clusters, and sensor supply rails. The exposed pad on the PG-DSO-8 package reduces thermal resistance to roughly 55 C/W on a standard 1-oz 2-layer JEDEC EIA/JESD51 footprint, enabling sustained 100 mA operation without external heatsinking at moderate VIN/VOUT deltas. Internally, the regulator uses a pass element referenced to a precision bandgap, with internal compensation that does not require an external ESR network. Stability is specified for output capacitors as low as 1 µF (X7R ceramic), simplifying BOM and reducing PCB area. Protection features include reverse-polarity robustness on the input, short-circuit current foldback, and thermal shutdown with hysteresis, all of which are critical for automotive load-dump and jump-start scenarios. Typical applications include automotive body ECUs, CAN/LIN transceiver supply, sensor power rails (e.g., Hall-effect, pressure), and industrial 24 V systems needing a clean 5 V post-switching rail. The 40 V input rating and ±2% accuracy also make the part attractive for white-goods and HVAC control boards exposed to wide input transients. When designing in this part, place input and output ceramic capacitors as close to the IC pins as possible, and tie the exposed pad to a copper pour that ties back to GND. Designers should also verify that VIN-VOUT × IOUT remains within the package's SOA, especially in 24 V systems where dropout dissipation can approach 1 W at full load. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone — supporting faster sourcing decisions.
TLS715B0EJV50XUMA1 - 5V 150mA Auto LDO Regulator | Infineon
The Infineon TLS715B0EJV50XUMA1 is a fixed 5.0 V positive-output low-dropout (LDO) linear voltage regulator that delivers up to 150 mA of load current from an input rail of up to 40 V, housed in an 8-pin PG-DSO-8 (exposed pad) package qualified to AEC-Q100 for automotive use. According to the Infineon OPTIREG linear datasheet, it regulates VQ,nom = 5.0 V with ±2% output accuracy, exhibits a typical dropout of 200 mV at full load, and features a 36 µA quiescent current and an 80 µA maximum supply current. 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 broader power-management hierarchy, the LDO sits beneath the linear regulator family, which itself falls under voltage regulators and the wider power management IC category. Unlike switching regulators, an LDO dissipates VIN - VOUT as heat but adds essentially no switching noise to the output, making it ideal for post-regulation after a noisy DC-DC stage or for direct battery-powered rails. Key differentiating features include very low quiescent current for always-on subsystems, integrated protection such as overtemperature shutdown and output current limiting, an exposed thermal pad to lower junction-to-ambient thermal resistance, and an automotive qualification profile (AEC-Q100). The 200 mV dropout at 150 mA keeps the part in regulation even during cold-crank events on a 12 V automotive bus where the rail briefly collapses toward 5.2 V. The TLS715B0EJV50XUMA1 uses a PNP pass-element architecture with internal bandgap reference and feedback resistors trimmed at wafer level, eliminating the need for an external resistor divider. Built on Infineon's OPTIREG linear process, the part is engineered to survive load-dump transients up to 40 V on the input. Typical applications include automotive body and chassis ECUs, sensor and actuator supplies, instrument clusters, infotainment standby rails, and industrial 24 V bus systems. The wide 40 V input tolerance and AEC-Q100 qualification make it a common choice for ECU power trees that must ride through load-dump. When designing with this device, place input and output ceramic capacitors as close as possible to the IC pins and provide sufficient copper area on the exposed pad to keep junction temperature within the AEC-Q100 grade limits. The 5 µA typical quiescent current makes the regulator well-suited to permanent-battery applications. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering context beyond raw spec repetition.