Product details


Vin (Min) (V) 2.7 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 15 Iq (Typ) (uA) 680 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 1000 Features Adjustable Current Limit, Differential Remote Sense, Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power Good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN-HR (RWW) 21 12 mm² 4 x 3 open-in-new Find other Buck converters (integrated switch)


  • 4-V to 16-V input range up to 15-A without external bias
  • 3-V to 16-V input range up to 12-A without external bias
  • 2.7-V to 16-V input range up to 15 A with external bias ranging from 4.75 V to 5.3 V
  • Output voltage range: 0.6 V to 5.5 V
  • Integrated 8.4-mΩ and 2.6-mΩ MOSFETs
  • D-CAP3™ with ultra fast load-step response
  • Supports all ceramic output capacitors
  • Differential remote sense with 0.6-V ±1% VREF for –40°C to +125°C junction temperature
  • Auto-skip Eco-mode™ for high light-load efficiency
  • Programmable current limit with RTRIP
  • Pin-selectable switching frequency: 600 kHz, 800 kHz, 1 MHz
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased startup capability
  • Open-drain power-good output
  • Hiccup for OC and UV faults, latch-off for OV Fault
  • 4-mm × 3-mm, 21-pin QFN package
  • Pin compatible with 12-A TPS54JA20
  • Fully RoHS compliant without exemption
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The TPS548A29 device is a small high-efficiency synchronous buck converter with an adaptive on-time D-CAP3 control mode. Since external compensation is not required, the device is easy to use and requires few external components. The device is well-suited for space-constrained data center applications.

The TPS548A29 device has differential remote sense, high-performance integrated MOSFETs, and an accurate ±1%, 0.6-V reference over the full operating junction temperature range. The device features fast load-transient response, accurate load regulation and line regulation, Skip-mode or FCCM operation, and programmable soft-start.

The TPS548A29 device is a lead-free device. It is fully RoHS compliant without exemption.

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TPS548A28 ACTIVE 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 3-V LDO A pin-compatible product with alternate LDO voltage.

Technical documentation

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Type Title Date
* Data sheet TPS548A29 2.7-V to 16-V Input, 15-A Synchronous Buck Converter With Remote Sense, 4.5-V Internal LDO and Hiccup Current Limit datasheet (Rev. D) Jul. 07, 2021
Application note Benefits Using a Buck Converter's External Vcc Bias Pin May 25, 2021
Application note Measuring the Bode Plot for D-CAPx DC/DC Converters May 25, 2021
User guide TPS548A29EVM User Guide Mar. 26, 2020
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

Design & development

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Hardware development

document-generic User guide
The TPS548A29EVM is a D-CAP3 synchronous buck converter designed for up to 15-A output current, with an evaluation module (EVM) designed to demonstrate the small printed circuit board that may be achieved when designing with the TPS548A29 device. The TPS548A29 has integrated high-side and (...)
  • D-CAP3 control mode with fast load step response
  • Supports all ceramic output capacitors
  • Auto-skipping for high light load efficiency
  • Differential remote sense for high output accuracy

Design tools & simulation

SNVMBZ8.ZIP (234 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

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VQFN-HR (RWW) 21 View options

Ordering & quality

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