Product details

Vin (Min) (V) 2.7 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 20 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
Vin (Min) (V) 2.7 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 20 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
VQFN-FCRLF (RYL) 19
  • 4-V to 16-V input range, up to 20-A without external bias
  • 2.7-V to 16-V input range, up to 20-A with external bias ranging from 3.13 V to 3.6 V
  • Output voltage range: 0.6 V to 5.5 V
  • Integrated 7.7-mΩ and 2.4-mΩ MOSFETs support 20-A continuous output current
  • D-CAP3™ control mode 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
  • Differential remote sense for high output accuracy
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased start-up capability
  • Open-drain power-good output
  • Hiccup for OC, UV, and OV faults
  • 4-mm × 3-mm, 19-pin VQFN-FCRLF package
  • Fully RoHS-compliant without exemption
  • 4-V to 16-V input range, up to 20-A without external bias
  • 2.7-V to 16-V input range, up to 20-A with external bias ranging from 3.13 V to 3.6 V
  • Output voltage range: 0.6 V to 5.5 V
  • Integrated 7.7-mΩ and 2.4-mΩ MOSFETs support 20-A continuous output current
  • D-CAP3™ control mode 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
  • Differential remote sense for high output accuracy
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased start-up capability
  • Open-drain power-good output
  • Hiccup for OC, UV, and OV faults
  • 4-mm × 3-mm, 19-pin VQFN-FCRLF package
  • Fully RoHS-compliant without exemption

The TPS548B27 device is a small high-efficiency synchronous buck converter with an adaptive on-time D-CAP3 control mode. Because 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 TPS548B27 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 TPS548B27 is a lead-free device. It is fully RoHS-compliant without exemption.

The TPS548B27 device is a small high-efficiency synchronous buck converter with an adaptive on-time D-CAP3 control mode. Because 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 TPS548B27 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 TPS548B27 is a lead-free device. It is fully RoHS-compliant without exemption.

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Technical documentation

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Type Title Date
* Data sheet TPS548B27 2.7-V to 16-V Input, 20-A Synchronous Buck Converter with Remote Sense, 3-V Internal LDO, and Hiccup Current Limit datasheet (Rev. A) 28 Jul 2021
User guide TPS548B27EVM-162 20-A, Buck Converter Evaluation Module User Guide 19 Jul 2021
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS548B27EVM — TPS548B27 evaluation module 20-A DC-DC buck converter with 0.6 Vref and internal 3-V LDO

A D-CAP3 synchronous buck converter designed for up to 20-A output current, with an evaluation module designed to demonstrate the small printed circuit board are that may be achieved when designing with this device. Integrated high-side and low-side mosfets.
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Limit: 3
Simulation model

TPS548B27 PSpice Transient Model

SNVMC67.ZIP (309 KB) - PSpice Model
Simulation model

TPS548B27 SIMPLIS Transient and Average Model

SNVMC73.ZIP (606 KB) - SIMPLIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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VQFN-FCLRF (RYL) 19 View options

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