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AC/DC & DC/DC converters (integrated FET)
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Power management
AC/DC & DC/DC converters (integrated FET)

TPS544B25

ACTIVE

4.5-V to 18-V, 20-A synchronous SWIFT™ buck converter with PMBus and frequency sync

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Data sheet

TPS544B25

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 20 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.5 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Over Current Protection, PMBus, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Telemetry, UVLO adjustable, Voltage Margining Control mode Voltage mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 9500 Duty cycle (max) (%) 80 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 20 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.5 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Over Current Protection, PMBus, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Telemetry, UVLO adjustable, Voltage Margining Control mode Voltage mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 9500 Duty cycle (max) (%) 80 Type Converter
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Technical documentation

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* Data sheet TPS544x25 4.5-V to 18-V, 20-A and 30-A SWIFT Synchronous Buck Converters with PMBus and Frequency Synchronization datasheet PDF | HTML 15 May 2015
EVM User's guide TPS5442x5 Step-Down Converter Evaluation Module User's Guide (Rev. B) PDF | HTML 26 Aug 2021
Application note Programming the NVM of PMBus Buck Converters to Support Mass-Production Needs (Rev. B) 13 May 2019
Analog Design Journal Maximizing power density and thermal performance in power-module designs 12 Dec 2018
Application note Analysis and Design of Input Filter for DC-DC Circuit 27 Nov 2017
Application note SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC 22 Feb 2016
Technical article Select the correct PMBus POL solution for your application PDF | HTML 03 Aug 2015

Design & development

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Evaluation board

TPS544B25EVM-681 — Single-Output DC-to-DC Converter with PMBus Interface

The TPS544B25EVM-681 evaluation module (EVM) is designed as a single output DC-DC converter that demonstrates a typical low-voltage application while providing a number of test points to evaluate the performance. It uses a nominal 12-V input bus to produce a regulated 0.95-V output at up to (...)

User guide: PDF | HTML
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