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5V 1A, low EMI, 94% efficiency DC/DC module reference design using double-layer TO-220 package

TIDA-00946

Overview

TI reference design TIDA-00946 demonstrates a 10.5mmx14.5mm, 94% efficient low electromagnetic interference (EMI) DC/DC module using the TPS54202, replacing low dropout regulators (LDOs) in most appliance applications. High efficiency eliminates the need for a heat sink, resulting in a smaller, lower cost solution. Higher current capacity enables the addition of more functionality (WiFi, sensors, etc.). High efficiency and low current consumption help achieve stringent energy efficiency ratings.

characteristic

● 5V regulated voltage, output load up to 1A
● Efficiency up to 94%
● 1.6μA standby current and 76μA no-load current
● Compact size: size and pin compatible, smaller than TO-220 (10.5mmx14.5mm)
● The temperature rise is less than 35℃ at full load, no radiator is required
● Reduces the complexity of onboard DC/DC design, saving R&D time and energy in switching power supply EMC design (faster to market)

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Blockdiagram

Design Files

Documentation

5V 1A Low EMI 94% Efficiency DC/DC Module in Dual Layer TO-220 Design Guide

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Update:2025-05-12 22:25:38

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