DC-DC转换器
产品（770)
TPS60400-Q1 - 60mA Charge Pump Inverter | TI Automotive
The TPS60400-Q1 is an unregulated charge pump voltage inverter from Texas Instruments, designed to generate a negative output voltage from a positive input supply ranging from 1.8 V to 5.25 V. It delivers up to 60 mA of output current and requires only three small 1-µF ceramic capacitors for operation. The device is AEC-Q100 qualified for automotive applications, ensuring reliability in harsh environments. The TPS60400-Q1 features a variable switching frequency that reduces operating current in applications with a wide load range and enables the use of low-value capacitors, making it an efficient and compact solution for generating negative supply rails. A charge pump voltage inverter is a type of DC-DC converter that uses switched capacitors to invert the polarity of an input voltage. Unlike inductive-based converters, charge pumps do not require inductors, which reduces electromagnetic interference (EMI) and simplifies PCB layout. The TPS60400-Q1 belongs to the TPS6040x-Q1 family of charge pump inverters, which are part of the broader category of switching regulators and power management ICs. These devices are essential in systems where a negative supply is needed for analog circuits, such as operational amplifiers, comparators, and data converters. Key features of the TPS60400-Q1 include its wide input voltage range of 1.8 V to 5.25 V, 60 mA output current capability, and low quiescent current due to variable frequency operation. The device operates with a switching frequency that adjusts based on load, optimizing efficiency across the load range. It also features a shutdown mode to reduce power consumption when the output is not needed. The TPS60400-Q1 is available in the small SOT-23 (DBV) package, which is ideal for space-constrained automotive and portable applications. Technically, the TPS60400-Q1 uses a charge pump architecture with an internal oscillator and switching transistors. The variable frequency control reduces switching losses at light loads, improving efficiency. The device can also be configured to generate a doubled positive output (2Vin) or a divided output (Vin/2) by connecting the capacitors differently, providing flexibility in system design. The output is unregulated, so the output voltage tracks the input voltage minus a small drop, which is acceptable for many analog applications. Typical applications include generating a negative rail for operational amplifiers in automotive sensor interfaces, powering LCD bias circuits, and providing a negative supply for audio amplifiers and data converters. The TPS60400-Q1 is also used in battery-powered devices where a negative voltage is required for analog circuitry. Its small footprint and minimal external components make it an attractive choice for compact designs. When designing with the TPS60400-Q1, it is important to place the three 1-µF ceramic capacitors close to the device to minimize parasitic inductance and ensure stable operation. The input capacitor should be placed between the IN pin and ground, and the output capacitor between the OUT pin and ground. The flying capacitor connects between the C1+ and C1- pins. Proper layout is critical to achieve the specified output ripple and efficiency.
TPS60400DBVR - 60mA Charge Pump Inverter | Texas Instruments
The Texas Instruments TPS60400DBVR is an unregulated 60 mA charge pump voltage inverter housed in a 5-pin SOT-23 (DBV) package. It inverts a positive input voltage rail (1.6 V to 5.5 V) into a corresponding negative output (-Vin) with up to 60 mA of load current, requiring only three external 1 µF ceramic capacitors for a complete solution. The device offers variable switching frequency (typically 50 kHz to 250 kHz depending on load) and supports inputs from a single Li-Ion cell, two or three NiCd/NiMH/alkaline cells, or a 3.3 V/5 V pre-regulated rail. A charge pump is a DC-DC converter that uses capacitors instead of inductors to store and transfer energy, making it ideal for low-current, low-noise, space-constrained applications. Within the broader power management hierarchy, charge pumps sit alongside LDOs and switching regulators as a third topology option - cheaper and smaller than an LDO when output regulation is not needed, lower noise than an inductive buck-boost converter when the load is light. The TPS6040x family specifically targets negative rail generation, which is essential for biasing op-amps, sensor interfaces, and LCD panels. Key specifications of the TPS60400DBVR include: input voltage range of 1.6 V to 5.5 V, output current up to 60 mA, typical output resistance of 15 ohms at 25 °C, quiescent current around 1 mA, and an operating temperature range from -40 °C to +85 °C. The SOT-23-5 footprint consumes less than 30 mm² of board area, and the device requires no magnetic components. The TPS60400DBVR uses a two-stage switched-capacitor inverter in which internal MOSFETs alternately charge and discharge flying capacitors each switching cycle. Compared to inductive boost/SEPIC topologies, this architecture eliminates inductor DCR losses, EMI ringing, and radiated magnetic fields, while reducing BOM cost and PCB height. The variable-frequency control loop modulates the oscillator with load current to maintain reasonable efficiency across the full 0-60 mA range. Typical applications include generating small negative bias rails for operational amplifiers, ADCs, and DACs; powering LCD contrast/bias circuits; supplying GaAs FET gate bias in RF subsystems; and creating -5 V supplies from a 3.3 V logic rail in portable, battery-powered, or industrial embedded designs where inductors cannot be used. For design success, prioritize low-ESR ceramic capacitors on both flying and reservoir positions, keep the input supply well-bypassed, and verify that 60 mA covers the worst-case dynamic load. When regulation is required, follow the TPS60400DBVR with an LDO such as a TPS7A30 series negative LDO. This page integrates distributor pricing, verified drop-in pin-compatible alternatives, and practical design notes not duplicated in the bare manufacturer datasheet.
TPS61020DRCR - 1.5A 96% Efficient Boost Converter | DRC-10 | TI
The Texas Instruments TPS61020DRCR is a 1.5-A switch, 96%-efficient synchronous boost converter with down-mode (pass-through) operation, housed in a 10-pin VSON (DRC) PowerPAD package measuring 3 mm x 3 mm. It accepts an input voltage range of 0.9 V to 6.5 V and produces an adjustable output from 1.8 V to 5.5 V, retaining regulation when VIN exceeds the nominal VOUT (the so-called "down-mode" pass-through behavior that lets a single-cell Li-ion or three-cell alkaline stack feed a 3.3 V or 5 V rail without overshoot at high input). A boost (step-up) DC-DC converter is a switching power supply that stores energy in an inductor during the switch on-time and releases it into the output capacitor during the off-time, producing an output voltage higher than the input. Synchronous rectification replaces the traditional Schottky diode with a low-side MOSFET, which lowers conduction loss and lifts efficiency to 96 percent at moderate loads. The TPS61020DRCR belongs to the DC-DC converter > switching regulator > step-up regulator > power management IC hierarchy, and it is targeted at portable, battery-powered products where every milliwatt matters. The headline specifications are 0.9 V to 6.5 V input, 1.8 V to 5.5 V adjustable output, 1.5 A internal switch current, 25 µA quiescent current, and a fixed switching frequency that enables small external magnetics. A key feature is the down-mode pass-through: when VIN is above VOUT the converter effectively behaves like an LDO, suppressing switching ripple on the output. The exposed thermal pad (PowerPAD) drops theta_JA substantially, allowing 1 A-plus continuous output without external heatsinking on a properly laid-out PCB. Architecturally, the TPS61020 uses current-mode PWM control with pulse-skipping at light load to keep quiescent current near 25 µA. Its adjustable version sets VOUT through an external resistor divider tied to the FB pin, while fixed-output variants in the TPS6102x family ship at common rails. Anti-rejecting the synchronous rectifier at full duty in down-mode is a critical detail of the topology, and a small L-C output filter plus a ceramic input capacitor are sufficient for most applications. Typical applications include single-cell Li-ion to 5 V boost supplies for USB OTG, three-cell alkaline or NiMH to 3.3 V rails for handheld meters, MP3 players and digital cameras, and any portable product that must down-convert seamlessly when a fresh battery sits above the regulated rail. Designers also use it in white-LED driver front-ends and small TFT bias generators. When designing, select an inductor with low DCR (under 50 mΩ) and a saturation rating above 2 A; use X7R 10 µF ceramic capacitors on both VIN and VOUT placed within 2 mm of the package; and provide at least four thermal vias under the PowerPAD to the inner ground plane to keep junction temperature within ratings at full 1.5 A load. This page synthesizes distributor pricing, parametric drop-in alternatives, and PCB layout notes drawn from the TI datasheet and DigiKey/Mouser listings - context that the bare datasheet does not present in one place.
TPS61086DRCR - 18.5V 2A Boost Converter 1.2MHz | Texas Instruments
The Texas Instruments TPS61086DRCR is a high-frequency, high-efficiency step-up DC-DC converter with an integrated 2.0-A, 0.13-ohm power switch, capable of providing an output voltage up to 18.5 V. It operates from a 2.3-V to 6.0-V input voltage range and uses a fixed 1.2-MHz pulse-width-modulation (PWM) controller, allowing small external inductors and capacitors and fast transient response. The device is available in a 10-pin VSON (DRC) package with an exposed thermal pad. A boost converter, also known as a step-up converter, is a type of DC-DC switching regulator that produces an output voltage higher than its input voltage. It is a fundamental building block in power management, sitting within the hierarchy of switching regulators, which belong to the broader category of power management integrated circuits (PMICs). Boost converters are essential in battery-powered applications where the battery voltage is lower than the required system rail. Key features include a 2.0-A switch current limit, an adjustable output voltage from 2.8 V to 18.5 V, and a power save mode for improved efficiency at light loads, with the option to force PWM operation. The device also features adjustable soft-start to limit inrush current, thermal shutdown protection, and low quiescent current. The integrated 0.13-ohm switch minimizes conduction losses, contributing to high efficiency across a wide load range. The TPS61086 uses a current-mode control architecture with a fixed 1.2-MHz switching frequency, balancing efficiency and external component size. The high switching frequency enables small, low-profile inductors and ceramic capacitors, reducing overall solution footprint. Power save mode reduces switching frequency at light loads to maintain efficiency, and forced PWM mode supports noise-sensitive applications. Typical applications include battery-powered portable devices, white LED drivers, OLED display bias, and general-purpose step-up voltage regulation. The wide input range and high output capability suit loads requiring voltages above the battery rail. The small package and high efficiency make it ideal for space-constrained designs. When designing with the TPS61086DRCR, ensure proper PCB layout with short, low-inductance paths for the switch node and output capacitor. The exposed pad should be soldered to a large copper area for thermal dissipation, and the inductor saturation current must exceed the peak switch current for stable operation.
TPS61096ADSSR - 28V Boost Converter, 1µA IQ | Texas Instruments
The Texas Instruments TPS61096ADSSR is a 28V output voltage synchronous boost converter with 1µA ultra-low quiescent current, housed in a 12-pin WSON (DSS) exposed pad package. It delivers up to 350 mA switch current from input voltages of 1.8V to 5.5V and produces an adjustable output of 4.5V to 28V. The device is purpose-built for applications powered by two-cell alkaline, single-cell Li-Ion, or Li-polymer batteries that require high efficiency at light load. A boost converter (step-up DC-DC switching regulator) is a power management integrated circuit that raises a lower DC input voltage to a higher DC output voltage using an inductor, switch, and rectifier network. It belongs to the broader hierarchy of switching voltage regulators, then voltage regulators, then power management ICs. The TPS61096A family is specifically optimized for ultra-low standby current to extend battery life in always-on systems. Key features of the TPS61096ADSSR include true shutdown isolation, internal synchronous MOSFETs, output disconnect during shutdown, programmable output voltage via an external resistor divider, and integrated soft-start. Thermal shutdown and over-current protection safeguard the device under fault conditions. The 1µA quiescent current is among the lowest in its class, making this regulator exceptionally well suited to IoT nodes, wearables, and metering applications that spend most of their operational life in standby. The TPS61096ADSSR uses a peak-current-mode control architecture with a fixed internal switching frequency (typically around 1 MHz, depending on variant), enabling a small 4.7µH inductor. Synchronous rectification eliminates the need for an external Schottky diode, shrinking the BOM and improving efficiency at heavy loads. The output disconnect feature prevents reverse current flow from VOUT back through the inductor to the battery when the converter is disabled, preserving battery energy and protecting the system. Typical applications include smart meters and gas/water AMR modules, ePaper and e-ink displays, two-cell alkaline-powered toys and portable instruments, single-cell Li-Ion powered OLED bias supplies, and low-power wireless sensor nodes. The wide output range of 4.5V to 28V also supports bias rails for TFT displays, IGBT gate drivers, and piezo buzzer excitation. When designing with this part, ensure the inductor has a saturation current rating at least 30% above the peak switch current to prevent saturation at cold temperatures. Place the input capacitor, output capacitor, and bootstrap capacitor as close to the IC as possible. The output disconnect feature must be considered when cascading boost stages. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes not consolidated in the manufacturer datasheet.
TPS610981 - 3.3V Ultra-Low IQ Boost + LDO | Texas Instruments
The Texas Instruments TPS610981 is an ultra-low quiescent current synchronous boost converter with an integrated LDO, providing two regulated output rails from a single low-voltage input. It delivers a fixed 3.3V output and operates from input voltages as low as 0.7V, supporting one-cell alkaline, NiCd, NiMH, coin cell, and one-cell Li-Ion/Li-polymer batteries. The device comes in a compact 6-pin WSON (1.5 mm x 1.5 mm) surface-mount package (DSG suffix). A boost converter is a type of switching DC-DC power supply (part of the broader power management IC hierarchy) that steps an input voltage up to a higher regulated output using an inductor, switching FETs, and a control loop. Unlike a linear regulator, a boost converter can multiply battery voltage, making it essential when system electronics need 3.3V but the cell provides only 1.5V or a discharging Li-Ion cell falls below 3.3V. The TPS61098x family additionally integrates a second low-dropout linear regulator or load switch, eliminating an external LDO and board space. Key features include synchronous rectification for high light-load efficiency, ultra-low quiescent current that extends battery life in always-on systems, integrated output discharge, and power good signaling per TI's product comparison data. The -40C to +85C operating range suits industrial and portable environments. Technically, the synchronous topology removes the external Schottky diode, improving efficiency and reducing BOM count. The two-rail architecture lets designers power a microcontroller rail and a separate sensor or RF rail from one converter with excellent cross regulation. Typical applications include battery-powered sensor nodes, energy harvesting systems, portable medical devices, and low-power IoT endpoints where every microamp of standby current matters. Design consideration: because the input can be driven below 0.7V by a deeply discharged cell, verify minimum input and inrush behavior, and follow TI datasheet (Rev. F) layout guidance for short inductor and output capacitor traces to ensure loop stability.
TPS610981 - 3.3V Ultra-Low Iq Boost + LDO | Texas Instruments
The Texas Instruments TPS610981 is an ultra-low quiescent current synchronous boost converter with an integrated low-dropout linear regulator (LDO), delivering a fixed 3.3V main output plus a secondary LDO rail in a compact 6-pin WSON (1.5x1.5mm) package. It operates from a single-cell alkaline, NiCd, NiMH, coin cell, or Li-Ion battery. A boost converter is a DC-DC step-up topology within the broader voltage regulator family of power management ICs. It raises a lower input voltage to a higher regulated output using an inductor and synchronous switching elements. The TPS61098x family integrates this boost converter with either an LDO or a load switch, providing two output rails from one IC - a key differentiator for space-constrained battery designs. Key features include ultra-low quiescent current of typically 300 nA, extending battery life in standby for years-long deployments. The synchronous boost delivers up to 300 mA at 3.3V from a 1.8V input with efficiency up to 95%, while the integrated LDO supplies a clean, low-noise rail for analog or RF circuitry. True load disconnect during shutdown prevents battery drain, and integrated overcurrent and overtemperature protection ensure robust operation. Architecturally, the device uses pulse-frequency modulation (PFM) at light loads to minimize quiescent current, transitioning to PWM at heavier loads for low ripple and stable regulation. The LDO is powered from the boost output, generating a second rail with no additional magnetics. Typical applications include wireless sensor nodes, hearing aids, portable medical devices, and IoT endpoints where the 3.3V rail powers microcontrollers and RF transceivers while the LDO rail feeds analog sensors or audio codecs. For design, select the recommended 2.2 uH inductor and place input/output capacitors close to the pins to minimize ripple and preserve the ultra-low standby current advantage.
TPS61220DCK - 0.7V Input Boost Converter 200mA SC-70
The Texas Instruments TPS61220DCK is a 0.7-V input, adjustable output voltage synchronous boost converter with 5.5 µA quiescent current, housed in a 6-pin SC-70 (DCK) package measuring 2 mm × 2 mm. It delivers up to 200 mA switch current from input sources as low as 0.7 V, with an adjustable output range starting at 1.8 V. The device uses synchronous rectification to maximize efficiency at low duty cycles and is targeted at single-cell Li-Ion, Li-polymer, and 1-3 cell alkaline/NiCd/NiMH battery-powered products. A boost converter (also called a step-up converter) is a type of switched-mode DC-DC converter that produces a higher output voltage than its input voltage. In the power management IC hierarchy, boost converters fall under DC-DC converters -> voltage regulators -> power management ICs -> semiconductors. The TPS61220DCK's hysteretic controller topology eliminates the need for external compensation, simplifying design in space-constrained applications such as wearables and IoT sensor nodes. Key features include 5.5 µA quiescent current for extended battery life, automatic transition between PWM and pulse-frequency modulation (PFM) at light load, an EN pin for shutdown with sub-1 µA leakage, and built-in output disconnect that prevents reverse current from the output to the input when Vin exceeds Vout. The device operates across -40°C to +85°C industrial temperature range, and the SC-70 package enables PCB layouts as small as a few mm². The TPS61220 architecture uses synchronous rectification with an internal MOSFET pair, achieving efficiencies up to 95% at moderate loads. Its hysteretic control provides instant transient response without compensation loops, which is critical for powering microcontrollers and radio modules that exhibit abrupt load steps between sleep and active states. Typical applications include single-cell battery boost to 3.3 V for MCUs and BLE radios, two-cell alkaline boost to 5 V for USB-powered peripherals, low-voltage energy harvesting front-ends, and backup-power systems in metering and security sensors. The wide Vin range down to 0.7 V enables direct operation from nearly depleted single-cell batteries. When designing with this device, place the input/output capacitors and inductor as close as possible to the IC, and ensure the chosen inductor has low DCR (under 100 mΩ) and a saturation current rating above the peak switch current. This page synthesizes distributor pricing, same-family alternatives, and practical design guidance not consolidated in the TI product folder.
TPS61220DCKR - 0.7V Boost Converter, 5.5µA IQ, SOT-SC70 | TI
The Texas Instruments TPS61220DCKR is a 0.7-V input, adjustable output voltage step-up (boost) DC-DC converter with 5.5 µA quiescent current, packaged in a 6-pin SOT-SC70 (DCK) measuring 2 mm × 2 mm. It delivers up to 200 mA of switch current with an output voltage range of 1.8 V to 5.5 V and supports input voltages down to 0.7 V, making it ideal for single-cell alkaline, NiMH, or Li-Ion battery powered products. The device also includes a pass-through function that allows the load to be supplied directly from the input when VIN is high enough. A boost converter (also called a step-up converter or step-up DC-DC switching regulator) is a switched-mode power supply topology that produces a higher output voltage than its input. Boost converters sit inside the broader voltage regulator family (which also includes buck, buck-boost, and LDO topologies) and within the larger category of power management ICs. They are commonly used whenever a system rail must be derived from a low-voltage battery source where linear regulation would be inefficient or infeasible. Key features of the TPS61220 include up to 95% efficiency at typical operating conditions, 5.5 µA quiescent current for low standby drain, and startup into load from 0.7 V input. It supports a wide VIN range up to 5.5 V and provides a pass-through mode for low dropout operation. The 6-pin SC-70 package enables a very compact PCB footprint. Technically, the converter uses synchronous rectification and a fixed-frequency PWM control loop with internal power MOSFETs, achieving the high efficiency figure. The low quiescent current extends battery life during standby, while the wide operating input range allows the same part to be used across multiple battery chemistries without redesign. Typical applications include single-cell battery powered products such as wearables, IoT sensor nodes, remote controls, and handheld metering devices. The TPS61220 is also suitable for boosting Li-Ion battery voltage for 3.3 V or 5 V system rails and for low-voltage sensor bias supplies. When designing with this part, ensure that the input and output capacitors match the datasheet recommendations and that the peak switch current rating is not exceeded. The pass-through function should be considered when sequencing rails, as EN low does not disconnect the output from the input. This page synthesizes distributor pricing, drop-in compatible alternatives in the same SC-70 package, and practical design notes that go beyond the manufacturer datasheet summary.
TPS61230 - 5A Synchronous Boost Converter | Texas Instruments
The Texas Instruments TPS61230 is a high-efficiency synchronous step-up (boost) converter with an integrated 5-A switch, designed for products powered by a one-cell Li-Ion battery or a regulated 3.3-V rail. It provides an adjustable output voltage via an external resistor divider, with a typical input range of 2.5 V to 4.5 V and output up to 5 V. The device is available in a compact 3-mm x 3-mm VQFN-10 (DRC) package, enabling space-constrained designs. A boost converter, also known as a step-up converter, is a type of DC-DC switching regulator that produces an output voltage higher than its input voltage. It belongs to the broader family of switching voltage regulators, which are essential in power management ICs for efficiently converting and regulating electrical power. Unlike linear regulators, boost converters use an inductor and switches to transfer energy, achieving high efficiency even with large input-to-output voltage differences. Key features of the TPS61230 include a 5-A switch current limit, up to 96% efficiency, and automatic power-save mode for light loads, which reduces quiescent current to 20 µA. The device also offers overcurrent, overvoltage, and thermal shutdown protection. Its low RDS(on) switches minimize conduction losses, making it suitable for battery-powered applications where efficiency is critical. Technically, the TPS61230 uses a fixed-frequency PWM control scheme with a typical switching frequency of 1.5 MHz, allowing the use of small external components. The adjustable output is set with a resistor divider from the FB pin, and the device supports a soft-start function to limit inrush current. The integrated synchronous rectifier eliminates the need for an external Schottky diode, reducing component count and board space. Typical applications include portable electronics, battery-powered devices, and systems requiring a regulated 5-V rail from a lower voltage source. The TPS61230 is ideal for USB-powered devices, LED drivers, and sensor nodes where efficiency and small size are paramount. When designing with the TPS61230, ensure proper PCB layout with short, wide traces for high-current paths and adequate input/output capacitance to minimize voltage ripple. The inductor value should be selected based on the switching frequency and load current to maintain stable operation.
TPS61240DRVR - 5V 450mA 3.5MHz Synchronous Boost Converter | TI
The Texas Instruments TPS61240DRVR is a 5V fixed-output synchronous step-up (boost) DC-DC converter delivering up to 450 mA of load current from a 2.3 V to 5.5 V input rail, integrated into a 6-pin WSON (Wettable Flank Small Outline No-lead) DRV package with exposed thermal pad. The device operates at a fixed switching frequency of 3.5 MHz (typical, often listed as 4 MHz in marketing copy), enabling the use of a small 1 µH inductor and tiny ceramic capacitors while keeping the converter out of the AM band. A step-up (boost) converter is a switched-mode power supply topology that produces an output voltage higher than its input voltage by storing energy in an inductor and releasing it into a capacitor through a switching element. The synchronous variant replaces the conventional Schottky rectifier with a low-side MOSFET, achieving higher efficiency at light loads and removing the need for an external diode. The TPS61240DRVR specifically targets portable battery-powered applications such as those powered by one-cell Li-Ion / Li-Polymer or three-cell alkaline/NiCd/NiMH chemistries. Key differentiating features include a 500 mA input valley current limit, ultra-low 30 µA quiescent current for extended battery life, internal soft-start to limit inrush, and a power-good indicator with input-to-output isolation. The DRV package is only 2 mm × 2 mm in footprint, which is critical for wearables, mobile phones, and USB-OTG supplies where PCB area is at a premium. The exposed pad provides a low thermal-resistance path to dissipate up to ~1 W continuously. The quasi-constant on-time valley current-mode control loop provides fast transient response and excellent load regulation while minimizing output ripple. The high-side P-FET synchronous switch eliminates the rectifier forward drop, pushing peak efficiency beyond 90% at moderate loads. The internal compensation is designed to work with a 1 µH nominal inductor and 10 µF input/output capacitors. Typical applications include USB-OTG supplies from a Li-Ion cell, 5 V bias for GPS modules, RFID readers, audio codec pre-amps in portable media players, low-power MCU cores in IoT sensor nodes, and white-LED drive rails. The wide input range (2.3 V to 5.5 V) covers all common single-cell battery chemistries including deeply discharged Li-Ion (2.5 V) and fresh alkaline (3 × 1.5 V = 4.5 V). When designing with the TPS61240DRVR, choose a 1 µH shielded inductor with low DCR to preserve efficiency. Place the input capacitor within 2 mm of the VIN and PGND pins, and route the output capacitor return directly to the exposed pad to minimize switching noise coupling into sensitive analog circuits downstream. This page synthesizes distributor pricing, drop-in WSON-6 alternatives, and practical layout notes not collected on the manufacturer datasheet alone, giving procurement and design engineers a single reference for cross-functional review.
TPS61240DRVT - 5V 450mA Boost Converter | Texas Instruments
The Texas Instruments TPS61240DRVT is a 2.3V to 5.5V input, 5V fixed-output, 450mA synchronous step-up (boost) DC-DC converter in a 6-pin WSON (DRV) package with exposed thermal pad. It switches at a fixed 3.5 MHz and is optimized for products powered by three-cell alkaline/NiCd/NiMH or single-cell Li-Ion/Li-Polymer batteries. A boost converter (step-up converter) is a switching power supply topology that produces an output voltage higher than its input. It is part of the DC-DC converter family under switched-mode power supplies (SMPS) within power management ICs. Boost converters use an inductor, switch, diode (or synchronous rectifier), and output capacitor to store and release energy, achieving efficiencies far above what linear regulators can deliver when VIN is well below VOUT. Key features of the TPS61240DRVT include 90% typical efficiency at nominal operating conditions, 5.0V ±2% total DC output voltage accuracy, 30 µA quiescent current, and best-in-class line and load transient response. The wide input range of 2.3V to 5.5V is ideal for batteries with extended voltage ranges, and the high 3.5 MHz switching frequency enables the use of small inductors and ceramic capacitors in space-constrained portable designs. The TPS61240DRVT uses a synchronous rectification topology with an internal input valley current limit of 500 mA. Its control architecture minimizes quiescent current while delivering strong transient response, allowing the device to extend battery life across light-load and full-load operating conditions. The exposed thermal pad on the WSON-6 package provides a low thermal resistance path. Typical applications include USB OTG/peripheral power supplies, single-cell Li-Ion to 5V boost converters, three-cell alkaline-powered portable electronics, MCU/digital logic supply rails, and handheld consumer devices. Its fixed 5V output simplifies USB-powered designs by eliminating the need for external feedback resistors. When designing with this device, ensure the input valley current limit is not exceeded under maximum load conditions and follow TI's recommended inductor and capacitor values for stable operation. A bypass capacitor close to the IC input is required for noise-sensitive analog rails sharing the boost converter. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TPS61251DSGR - 3.5MHz Boost Converter for Battery Backup | Texas Instruments
The Texas Instruments TPS61251DSGR is a 3.5-MHz, 1.5-A, 92%-efficient boost converter designed for battery backup charging applications with adjustable constant current limit and an integrated snooze mode. Housed in an 8-pin WSON (DSG) package measuring 2x2 mm, the device delivers ±10% input current accuracy and supports charging super-capacitors in the Farad range to provide hold-up time during main-battery loss. A boost converter is a type of switched-mode DC-DC converter whose output voltage is higher than its input voltage. In the broader power-management taxonomy, a boost (or step-up) converter sits beside buck, boost-buck, and SEPIC topologies; all belong to the voltage-regulator IC family, which is itself a sub-category of power-management ICs (PMICs). Boost converters are commonly used in portable products where a single-cell Li-Ion, Li-polymer, or 3-cell NiMH source must be boosted to 3.3V, 3.45V, 5V, or higher rails for downstream loads. The TPS61251DSGR accepts inputs from 2.3V to 6V and produces an adjustable output of up to 6.5V typical, with the input-current limit programmable via a single external resistor. Operating at a fixed 3.5-MHz switching frequency, the device supports small 1-uH inductors, reducing total solution area. Efficiency peaks at 92% under typical loads; the integrated snooze mode drops quiescent current when the backup source is fully charged, preserving stored energy. Protection features include adjustable input-current limit, thermal shutdown, and over-voltage protection. The architecture pairs a current-mode PWM controller with a low-RDS(on) synchronous power stage and a precision current-sense amplifier for the adjustable constant-current limit. The high switching frequency pushes the ripple noise above the audio band, simplifying filtering. Programmable soft-start and the snooze-mode pin allow designers to tune startup behavior and standby losses for ultra-low-power sleep states. Typical applications include backup power for solid-state drives (SSD), hold-up supplies in industrial meters and e-meters, portable medical devices, wireless IoT sensor nodes, and SSD caching modules. The wide input range suits USB-on-the-go (OTG) boost requirements as well. For designers evaluating alternatives, the TPS61251DSGR occupies the same 2x2 mm footprint as TI's other DSG-package parts, allowing PCB reuse across similar backup or general-purpose boost rails. When designing with this part, choose an input capacitor rated for the worst-case RMS ripple and a 1-uH shielded inductor with low DC resistance to preserve efficiency at 1.5 A. The ILIM resistor sets the constant-current regulation point for capacitor charging - verify this value matches the backup-capacitor manufacturer's recommended charge profile to avoid premature aging. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
TPS61288RQQR - 18V 15A Synchronous Boost Converter | Texas Instruments
The Texas Instruments TPS61288RQQR is a fully integrated, synchronous boost converter housed in an 11-pin PowerVQFN (RQQ) package, delivering up to 15 A peak switch current from a 2.0 V to 18 V input rail while producing an adjustable output of 4.5 V to 18 V. Its 6.5 mΩ low-side and 8.5 mΩ high-side MOSFETs achieve high efficiency and small size in portable systems. The 500 kHz switching frequency enables a compact LC filter and supports single-cell or two-cell Li-ion battery sources. According to the Texas Instruments product page, the TPS61288 combines high power density with wide Vin/Vout range, making it suitable for USB Power Delivery (PD), fast-charging adapters, and industrial point-of-load applications. A boost (step-up) converter is a switched-mode DC-DC converter that produces an output voltage higher than its input. Boost converters sit within the voltage regulator family (DC-DC converter -> switching regulator -> power management IC) and are favored over LDOs when the input-to-output step-up ratio would otherwise dissipate too much power as heat. Compared with a discrete boost implementation that needs external MOSFETs, an inductor, and a rectifier, the TPS61288 integrates the synchronous FETs and protection logic, simplifying PCB layout and reducing BOM count. Key features include a 2.0 V minimum continuous operating input (2.4 V minimum start-up), 4.5 V to 18 V programmable output, 500 kHz PWM switching, internal soft-start, cycle-by-cycle current limit, and thermal shutdown. The synchronous architecture eliminates the external Schottky diode, boosting efficiency to over 95 percent in typical USB-PD boost configurations. Technically, the TPS61288 uses a peak-current-mode control architecture with internal compensation, which simplifies external compensation components and provides excellent line and load transient response. The high-side and low-side MOSFETs are co-packaged to minimize parasitic inductance and switching losses at the 500 kHz operating point. Typical applications include USB-PD source voltage boost, two-cell battery fast charging, industrial 12 V to 18 V boost rails, e-cigarette and personal vaporizer modules, and any battery-powered system requiring high step-up conversion from a sub-3 V source to a 12 V or higher load rail. The wide Vin/Vout range covers both single-cell and two-cell Li-ion battery stacks. When designing with this device, follow TI's recommended inductor selection (typically 1.0 µH to 2.2 µH, 15 A saturation) and ensure the input/output ceramic capacitors meet the ESR and voltage derating guidelines shown in the manufacturer datasheet. Pay attention to PCB layout: the PowerVQFN package requires adequate copper thermal relief under the exposed pad to keep junction temperature below the 125 °C limit. This page synthesizes distributor pricing, drop-in same-package alternatives, and PCB thermal design notes not found in the manufacturer datasheet alone.
TPS613222ADBVT - 1.8A 5V Boost Converter, 6uA IQ | TI
The Texas Instruments TPS613222ADBVT is a synchronous boost converter with a fixed 5V output, delivering up to 2.5A switch current (1.8A continuous) from inputs as low as 0.9V, packaged in a 5-pin SOT-23 (DBV). Drawing only 6.5 microamps of quiescent current, the TPS613222ADBVT extends battery life in portable systems powered by alkaline, NiMH, or single-cell Li-ion sources where the rail must stay alive in standby. A boost (step-up) DC-DC switching regulator is a converter that produces an output voltage higher than its input. When the input equals or exceeds the target output, the regulator idles and the output tracks the input minus the rectifier drop, making the part well-suited to single-cell-to-USB or single-cell-to-5V applications. Synchronous rectification eliminates the external Schottky diode, shrinking the BOM and improving efficiency at light load. Within the broader hierarchy, this part belongs to switching regulators -> DC-DC converters -> power management ICs. Three specifications define the TPS613222ADBVT's fit for portable battery-powered designs: 6.5 uA quiescent current extends standby, 0.9V to 5.5V input supports single-cell alkaline or NiMH operation, and 1.8A switch current (2.5A peak) supplies 5V rails up to several hundred milliamps without external FETs. The pass-through (down) mode automatically bypasses the boost when VIN exceeds VOUT, eliminating unnecessary switching losses. The TPS61322xx family uses a peak-current-mode control topology with internal compensation, a 1.2 MHz typical switching frequency that allows small inductors, and True Load Disconnect to prevent reverse leakage when VIN approaches VOUT. Internal soft-start limits inrush to protect the battery source during turn-on. Typical applications include USB charging-port power from a single-cell battery, IoT sensor nodes, wearables, single-cell Li-ion or alkaline-powered toys, and any portable 5V rail that must stay efficient over the entire battery discharge curve. Designers should choose the TPS613222ADBVR tape-and-reel sibling for high-volume assembly or the TPS613221A variants for different output voltages (3.3V, 3.6V) within the same pinout. The SOT-23-5 footprint is shared with many 1.5A-2A boost converters from competing vendors, simplifying second-source qualification.
TPS61378QWRTERQ1 - 18.5V, 4.8A Sync Boost Converter | TI
The Texas Instruments TPS61378QWRTERQ1 is an AEC-Q100-qualified, fully-integrated synchronous boost converter with integrated load-disconnect, delivering up to 18.5V output from a 2.3V to 14V input rail with a programmable switching current limit of 1A to 4.8A, housed in a 16-pin WQFN (RTE) package with wettable flank and exposed thermal pad. It consumes only 25uA quiescent current from VIN and employs peak current-mode control with a programmable switching frequency. A boost (step-up) converter is a switched-mode DC-DC converter that produces an output voltage higher than its input voltage by storing energy in an inductor during one clock phase and releasing it into the output capacitor during the complementary phase. Boost converters sit in the broader DC-DC converter hierarchy alongside buck, buck-boost, and SEPIC topologies, and they belong to the Power Management IC family that conditions battery or bus voltages for downstream analog, RF, and digital loads. Key features include integrated synchronous rectification (eliminating an external Schottky diode), an integrated P-MOSFET load-disconnect switch that prevents reverse current flow in shutdown, programmable peak current limit via external resistor, programmable switching frequency from 200kHz to 2.2MHz, internal soft-start, and thermal shutdown. The WQFN-16 RTE package provides a low thermal resistance path and the wettable flank enables automated optical inspection of solder joints. The architecture combines a high-side synchronous rectifier with a peak-current-mode controller and an internal low-side power MOSFET, achieving high efficiency (>90% at moderate loads) while minimizing external component count. The load-disconnect feature is essential for automotive start-stop and battery-isolated systems where reverse leakage into the source must be blocked during shutdown. Typical applications include automotive infotainment displays, USB Type-C power delivery boost rails, automotive camera modules, LED driver boost stages, and portable industrial equipment where a higher voltage rail must be generated from a 12V or 5V bus. The AEC-Q100 Grade 1 qualification (operating from -40C to +125C) makes the part specifically suited to harsh automotive environments. When designing with this device, select the inductor based on the programmed switching frequency and current limit (typical 1.0uH to 4.7uH) and ensure the output ceramic capacitor meets the manufacturer's minimum ESR requirement for stable loop compensation. Pay attention to PCB layout: the input capacitor return, output capacitor return, and PGND pin should all connect to a single low-impedance ground pour directly under the exposed pad to minimize switching noise and thermal rise. This page synthesizes distributor pricing, AEC-Q100 grade drop-in alternatives, and practical layout guidance not found in the bare manufacturer datasheet.
TPS62090 - 3A, 6V Synchronous Step-Down Converter | TI
The Texas Instruments TPS62090 is a high-frequency synchronous step-down (buck) converter optimized for small solution size and high efficiency in battery-powered applications. It operates from an input voltage range of 2.5 V to 6 V and delivers up to 3 A of continuous output current. The output voltage is adjustable from 0.8 V to VIN using external resistors, with a typical configuration of 1.8 V. The device is available in a 16-pin VQFN (RGT) package with an exposed thermal pad, enabling compact PCB layouts. A synchronous step-down converter is a type of DC-DC switching regulator that steps down a higher input voltage to a lower output voltage with high efficiency. Unlike linear regulators, which dissipate excess power as heat, switching converters use high-frequency switching and energy storage elements (inductors and capacitors) to transfer energy with minimal loss. The TPS62090 belongs to the TPS6209x family of synchronous buck converters within the broader power management IC category used in portable, industrial, and automotive power rails. Key features include the proprietary DCS-Control topology, which combines voltage-mode and current-mode control to deliver excellent load transient response and accurate output regulation. The converter achieves up to 97% efficiency and operates at a nominal 2.8 MHz switching frequency (1.4 MHz in some modes), allowing small inductors. Power Save Mode reduces quiescent current to approximately 20 uA at light loads, and 100% duty cycle support enables the lowest dropout operation. Technically, the DCS-Control architecture enables seamless PWM-to-PFM transition, maintaining high efficiency across the full load range. Soft-start, enable, and power-good pins allow flexible power sequencing and voltage tracking configurations. Only a small inductor and ceramic capacitors are required; the 3x3 mm VQFN-16 package suits space-constrained designs. Typical applications include point-of-load (POL) supplies for processors, FPGAs, and DSPs; power rails for smartphones, tablets, and other portable battery-powered devices; and industrial systems requiring high efficiency in a small footprint. When designing with the TPS62090, observe the minimum output capacitance required by the DCS-Control topology for stability, minimize parasitic inductance in the power loop, and provide adequate copper area under the exposed pad for thermal dissipation.
TPS62125DSGT - 3V-17V, 300mA Buck Converter | Texas Instruments
The Texas Instruments TPS62125DSGT is a 3V to 17V input, 300 mA output synchronous step-down (buck) DC/DC converter in an 8-pin WSON package with exposed thermal pad. The device integrates both high-side and low-side MOSFETs and supports an adjustable output voltage from 1.2V to 10V with typical efficiency above 90% across most of the load range. What is a buck converter? A buck converter (step-down switching regulator) is a type of switched-mode power supply (SMPS) topology that efficiently reduces a higher DC input voltage to a lower DC output voltage. It belongs to the voltage regulator family within power management ICs, distinct from linear regulators (LDOs) which dissipate excess voltage as heat. Because buck converters use PWM switching with an inductor and output capacitor, they achieve much higher efficiency (typically 85-95%) than LDOs across large input-to-output voltage differentials, making them the preferred topology for battery-powered and energy-constrained systems. Key differentiating features of the TPS62125DSGT include an integrated input supply voltage supervisor (SVS) with adjustable threshold and hysteresis consuming typically 6 microamps of quiescent current, 100% duty-cycle mode for low-dropout operation near battery end-of-life, a power-good open-drain output for sequencing, and an output discharge function that prevents residual voltage on the rail when disabled. The 2 mm x 2 mm WSON-8 footprint makes the device suitable for space-constrained designs. Technically, the TPS62125 uses peak-current-mode control with internal compensation, simplifying external component selection and eliminating the need for compensation network tuning. The wide 3V to 17V input range supports operation from 4-cell alkaline or 1- to 4-cell Li-Ion battery stacks as well as 9V to 15V bus-powered systems, enabling one regulator platform to cover multiple end products. Typical applications include battery-powered IoT endpoints, wearable health monitors, portable industrial sensors, low-power wireless sensor nodes, USB-powered peripherals, and standby rails in always-on systems. Designers select the TPS62125 specifically when an adjustable input-voltage supervisor and ultra-low 6-microamp quiescent current are required to maximize battery life in duty-cycled loads. When designing with this device, choose the inductor based on the manufacturer's WEBENCH tool or the datasheet inductor-selection tables; an LC filter combination of 2.2 microhenries and 10 microfarads is a typical starting point for most 3.3V and 5V output designs. Verify that the chosen input and output ceramic capacitors have adequate DC-bias derating at the actual operating voltage. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design considerations drawn from the manufacturer datasheet and reference designs, providing information not consolidated on a single distributor product page.
TPS62130ARGTT - 3-17V 3A Step-Down Converter | Texas Instruments
The Texas Instruments TPS62130ARGTT is a 3 V to 17 V, 3 A synchronous step-down DC-DC converter with DCS-Control topology, housed in a 16-pin VQFN (RGT) 3 mm x 3 mm package. It delivers adjustable output from 0.9 V to 6 V, supports up to 3 A continuous load, and operates at a typical switching frequency of 2.5 MHz that enables the use of small inductors. DCS-Control combines hysteresis and voltage-mode control to provide fast transient response and high output voltage accuracy in a small footprint. A DC-DC buck converter is a switch-mode voltage regulator that steps a higher DC input voltage down to a lower DC output voltage by rapidly switching an inductor/capacitor network. It belongs to the broader family of voltage regulators (linear regulators, switching regulators) inside power management ICs for semiconductors. Switching regulators like the TPS62130 family are preferred over LDOs when high efficiency, wide input range, or high load current make linear regulation impractical due to power dissipation. Key features include 3 V to 17 V input voltage range, up to 3 A output current, adjustable output from 0.9 V to 6 V, pin-selectable nominal / +5% output voltage, programmable soft-start and tracking, power-good output, output discharge, and 17 uA quiescent current. The 2.5 MHz typical switching frequency permits use of chip inductors under 1 uH, enabling designs smaller than 25 mm² total solution area. The VQFN-16 (RGT) package provides a thermal resistance of approximately 38 C/W on a 4-layer JEDEC standard test board. The TPS62130A uses TI's DCS-Control topology, which combines the fast transient response of hysteresis control with the DC accuracy of a voltage-mode loop. This gives the converter stable operation with ceramic output capacitors and pseudo-fixed-frequency switching under continuous load, while still entering power-saving mode at light load for high efficiency across the full load range. Typical applications include 12 V distributed bus POL converters for industrial PCs, USB Type-C / PD powered device rails, portable equipment battery-powered systems, FPGA/CPLD core and I/O supplies, and compact solid-state drives. A 12 V to 3.3 V conversion at 2 A is a common use case for this part. When designing with this device, choose a low-DCR power inductor with saturation current at least 30% above the maximum DC load; insufficient headroom causes output ripple and possible sub-harmonic instability in DCS-Control. Place input ceramic capacitors as close as possible to PVIN and PGND to minimize switching noise on the input rail. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical PCB design notes not found in the manufacturer datasheet, sourced from cross-reference databases and the TI product family.
TPS62130RGTR - 3A 3-17V Buck Converter 2.5MHz | Texas Instruments
The Texas Instruments TPS62130RGTR is a synchronous step-down (buck) DC-DC converter delivering up to 3A output current from a 3V to 17V input supply in a compact 16-pin VQFN (3x3 mm) package with exposed thermal pad, ideal for space-constrained point-of-load power management. A buck converter, or step-down converter, is a switching voltage regulator that efficiently reduces a higher input voltage to a lower regulated output. It is a fundamental power management IC building block, converting energy from 12V rails, batteries, or unregulated sources into the low-voltage rails required by processors, FPGAs, and sensors. Key features include an adjustable output from 0.9V to 6V, a 2.5MHz switching frequency, and approximately 17uA quiescent current in power-save mode. Integrated synchronous rectification eliminates the external Schottky diode and improves efficiency. The device provides an enable pin, open-drain power-good output, and soft-start/tracking pin for controlled startup and power sequencing. Technically, the TPS62130 uses DCS-Control (Direct Control with Seamless transition into Power Save Mode) topology, combining voltage-mode and current-mode control for excellent load and line regulation with seamless PWM/power-save transitions across the load range. The 2.5MHz switching frequency permits small inductors and capacitors, shrinking the total solution footprint. Overcurrent and overtemperature protection ensure robust operation. Typical applications include standard 12V rail POL supplies, converters from single or multiple Li-ion battery stacks, solid-state drives, embedded systems, and LDO replacements where efficiency matters. High efficiency across light and heavy loads suits battery-powered portable devices, industrial control, and networking equipment. Design tip: place input and output capacitors close to the pins to minimize parasitic inductance, solder the exposed pad to a thermal relief pattern, and use the SS/TR pin to set the output ramp or implement voltage tracking.
TPS62134D - 3.2A 17V Step-Down Converter | Texas Instruments
The Texas Instruments TPS62134D is a 17-V input synchronous step-down DC-DC converter delivering up to 3.2A of output current from a 3x3 mm 16-pin VQFN package with exposed thermal pad. The output voltage is adjustable down to 0.7V, and the device includes a low-power mode input designed specifically for Intel Skylake platform applications such as Ultrabooks and notebooks. A buck (step-down) switching regulator is a type of DC-DC converter that converts a higher input voltage to a lower regulated output using a high-side and low-side power MOSFET switch, an inductor, and capacitors. Within the power management hierarchy, the TPS62134 belongs to the switching voltage regulator family, sitting between point-of-load converters and full PMIC solutions. Its D-CAP-style synchronous architecture eliminates external bootstrap concerns for the low-side FET and improves efficiency at light load. Key features include the wide 17V maximum input supporting multi-cell and adapter rails, 3.2A continuous output current, a low-power mode input pin that lets the system MCU force efficiency-optimized light-load operation, and output voltage adjustability from 0.7V with a single external resistor divider. The 3x3 mm VQFN-16 (RGT) footprint keeps solution height low for ultraportable designs, and internal compensation simplifies design-in. Technically, the TPS62134 uses a synchronous rectification topology that reduces conduction losses compared to asynchronous (external-diode) bucks, and its control loop supports fast transient response for CPU core rails. The Intel Skylake compatibility makes it a natural fit for notebook VCCSA/VCCCORE auxiliary rails where dynamic load steps are frequent. Typical applications include Ultrabook and notebook point-of-load supplies, tablet and convertible power trees, SSD and storage-card supplies, and general 5V/12V-rail point-of-load conversion up to 3.2A. Design consideration: keep the input loop (input capacitor, VIN pins, PGND) as tight as possible; at 3.2A, switch-node ringing drives EMI, and a well-placed 22uF input ceramic plus short PGND return is essential per the TPS62134x datasheet (Rev. E) layout guidelines.
TPS62150A-Q1 - 3-17V 1A Automotive Step-Down Converter | TI
The TPS62150A-Q1 is an automotive-grade synchronous step-down DC-DC converter from Texas Instruments, designed for high power density applications. It operates from an input voltage range of 3 V to 17 V and delivers up to 1 A of output current with an adjustable output voltage from 0.9 V to 6 V. The device is available in a 3 mm × 3 mm QFN package (16-pin VQFN), making it suitable for space-constrained automotive and industrial designs. A step-down converter, also known as a buck converter, is a type of DC-DC converter that efficiently reduces a higher input voltage to a lower output voltage. It is a fundamental building block in power management systems, converting raw battery or bus voltages to the precise levels required by microcontrollers, sensors, and other loads. The TPS62150A-Q1 belongs to the family of synchronous buck converters, which use both high-side and low-side switches to achieve high efficiency, especially at moderate to high load currents. Key features of the TPS62150A-Q1 include the DCS-Control™ topology, which provides fast transient response and high output voltage accuracy. The device supports a typical switching frequency of 2.5 MHz, allowing the use of small inductors and capacitors, reducing solution size. It also features a quiescent current of 17 µA (typ.), enabling high efficiency at light loads. The output voltage can be set via external resistors or selected via a pin for nominal or +5% output, and the device includes programmable soft start and tracking for controlled power-up sequencing. Technically, the TPS62150A-Q1 integrates both power MOSFETs, eliminating the need for external Schottky diodes. The DCS-Control topology combines voltage mode and current mode control, providing stable operation with ceramic output capacitors. The device also includes power-save mode for seamless transition between PWM and PFM operation, maintaining high efficiency across the load range. The automotive qualification (AEC-Q100) ensures reliable operation over the -40°C to 125°C temperature range, making it suitable for harsh environments. Typical applications include automotive infotainment systems, advanced driver-assistance systems (ADAS), and industrial power supplies. The wide input range and high switching frequency make it ideal for powering processors, FPGAs, and sensors in these systems. The small package and high efficiency help meet stringent thermal and space requirements. When designing with the TPS62150A-Q1, ensure proper input and output capacitor selection to maintain stability and low output ripple. The device is designed to work with ceramic capacitors, but the value and ESR must be within the recommended range. Also, consider the thermal performance of the QFN package and provide adequate copper area for heat dissipation.
TPS62160DGKT - 3-17V 1A Step-Down Converter | Texas Instruments
The Texas Instruments TPS62160DGKT is a 3 V to 17 V, 1 A synchronous step-down (buck) DC/DC converter based on DCS-Control topology, housed in an 8-pin VSSOP (DGK) PowerPAD package with 3.00 mm x 3.00 mm footprint. The device supports an adjustable output voltage from 0.9 V to 6 V, with fixed-voltage variants also available in the family. It features a typical quiescent current of 17 uA and a switching frequency of typically 2.25 MHz, allowing the use of small inductors and low-cost ceramic input/output capacitors. A buck converter is a switched-mode power supply topology that steps a higher DC input voltage down to a lower DC output voltage by chopping the input with a switch and smoothing the resulting pulsed waveform through an LC filter. Within the broader power-management IC hierarchy, the buck converter sits under DC/DC switching regulators, voltage regulators, and ultimately power-management ICs; it is preferred over linear (LDO) regulators whenever the input-to-output voltage differential is large because switching conversion wastes far less power as heat. The TPS62160 belongs to TI's TPS6216x family, optimized for high power density and small solution size. Key features include DCS-Control (Direct Control with Seamless transition into power-save mode) topology for high efficiency across light and full load, up to 1 A continuous output current, output discharge and power-good indication, an enable pin for power sequencing, and pin-to-pin compatibility with the TPS62170 (higher current) and TPS62125 (different feature set) families. The device operates over a junction temperature range of -40 C to +125 C and offers over-temperature and over-current protection. The 8-pin VSSOP PowerPAD package provides a low thermal resistance path, enabling up to 1 A continuous load without external heat sinking. Typical applications include standard 12 V rail supplies (such as those found in industrial PCs, factory automation, and embedded computing), point-of-load (POL) supplies from single or multiple Li-ion battery stacks in portable equipment, and as a high-efficiency replacement for LDOs when the input-to-output voltage drop would otherwise dissipate excessive power. The small solution size makes the part attractive for space-constrained designs such as solid-state drives, portable instruments, and USB-powered peripherals. When designing with this device, choose an inductor with low DCR rated for the peak inductor current; verify output ripple with the selected output capacitor's ESR and capacitance value. Place the input capacitor as close as possible to the VIN and PGND pins to minimize switching-node ringing and EMI. Do not exceed the absolute maximum VIN of 17 V and keep the SW trace short and narrow to limit parasitic capacitance. This page synthesizes distributor pricing, drop-in same-package alternatives, and design notes not found in the manufacturer datasheet. Engineers can compare alternatives with confidence because every replacement shares the same VSSOP-8 footprint and within 30 percent of key parameters.
TPS62172QDSGRQ1 - 3-17V 0.5A AEC-Q100 Buck Converter | TI
The Texas Instruments TPS62172QDSGRQ1 is an AEC-Q100 qualified synchronous step-down (buck) DC-DC converter delivering a fixed 3.3 V output at up to 500 mA from a 3 V to 17 V input rail, housed in an 8-pin WSON exposed-pad (DSG) 2 mm x 2 mm package. It integrates the high-side and low-side MOSFETs and operates at a typical 2.25 MHz switching frequency using TI's DCS-Control topology, which combines hysteretic and PWM control for fast transient response and tight DC accuracy. A buck (step-down) DC-DC converter is a switched-mode power supply that converts a higher DC input voltage to a lower DC output voltage by alternately storing energy in an inductor and releasing it to the load through a filter capacitor. Compared with linear regulators, bucks achieve much higher efficiency at large input-to-output voltage differentials because they do not dissipate the VIN-VOUT drop as heat. Bucks sit within the broader power-management hierarchy: DC-DC converter -> switched-mode power supply -> power management IC -> semiconductor. The TPS6217x-Q1 family specifically targets high power-density automotive subsystems where small inductors, low quiescent current, and predictable EMI behaviour are essential. Key specifications include a typical 2.25 MHz switching frequency (allowing 1.0 uH to 2.2 uH chip inductors), 17 uA quiescent current, 2% output voltage accuracy, and a power-good output that signals when VOUT has reached regulation. The DCS-Control topology provides a smooth transition from PWM to light-load power-save mode, preserving efficiency at microampere loads. Internal soft-start limits inrush current, and the device supports 100% duty-cycle operation for low-dropout behaviour near 3 V input. The internal architecture uses adaptive on-time control with a virtual current sense, eliminating the need for an external current-sense resistor and minimising PCB area. The exposed thermal pad (EP) on the WSON-8 package provides a low thermal resistance path to the PCB ground plane, allowing the 500 mA continuous load at up to 17 V VIN without external heatsinking for typical automotive ambient temperatures. The 2.25 MHz switching frequency falls above the AM band and well above CISPR 25 automotive EMI bands, simplifying compliance. Typical applications include automotive infotainment head units, ADAS sensor modules (camera, radar), body-electronics clusters, always-on telematics units, and industrial 12 V point-of-load rails that must survive load-dump transients. The wide 3 V to 17 V VIN range tolerates cranking dips and 12 V battery transients directly. When designing with the TPS62172QDSGRQ1, choose a 1.0 uH to 2.2 uH shielded inductor rated for at least 0.7 A saturation, place input capacitors as close to the VIN and GND pads as possible, and connect the EP to a ground-copper pour of at least 100 mm squared for proper thermal relief. This page synthesizes manufacturer datasheet parameters, distributor pricing tiers, drop-in compatible same-package alternatives, and design notes not consolidated on the manufacturer product page - useful for engineers evaluating AEC-Q100 0.5 A rails and validating pin-to-pin second-source options.