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TPS548B27

ACTIVE

2.7-V to 16-V, 20-A synchronous step-down converter with differential remote sense

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Data sheet

TPS548B27

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 20 Vin (min) (V) 2.7 Vin (max) (V) 16 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 Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 680 Duty cycle (max) (%) 86
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 20 Vin (min) (V) 2.7 Vin (max) (V) 16 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 Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 680 Duty cycle (max) (%) 86
VQFN-FCRLF (RYL) 19 12 mm² 4 x 3
  • 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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* 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) PDF | HTML 28 Jul 2021
Analog Design Journal Designing with Small DC/DC Converters: HotRod™ QFN vs. Enhanced HotRod™ QFN PDF | HTML 18 Nov 2021
EVM User's guide TPS548B27EVM-162 20-A, Buck Converter Evaluation Module User Guide PDF | HTML 19 Jul 2021

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.
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS548B27 PSpice Transient Model

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

TPS548B27 SIMPLIS Transient and Average Model

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

SLVRBH6 — TPS54J06x TPS54Jx20 TPS548x28-9 Excel Calculator Tool

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS548A28 — 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 3-V LDO TPS548A29 — 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 4.5-V LDO TPS548B27 — 2.7-V to 16-V, 20-A synchronous step-down converter with differential remote sense TPS548B28 — 2.7-V to 16-V input, 20-A synchronous step-down converter with remote sense and hiccup current limit TPS54J060 — 4-V to 16-V input, 6-A synchronous buck converter, 900-mV reference voltage, latch-off current limit TPS54J061 — 4-V to 16-V input, 6-A synchronous buck converter, 600-mV reference voltage and hiccup current limit TPS54JA20 — 2.7-V to 16-V input, 12-A synchronous buck converter with remote sense and latch-off current limit TPS54JB20 — 2.7-V to 16-V input, 20-A synchronous buck converter with remote sense and latch-off current limit
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Package Pins CAD symbols, footprints & 3D models
VQFN-FCRLF (RYL) 19 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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