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Uniquely Efficient Isolated DC/DC Converter for Ultra-Low Power and Low Power Apps Reference Design

Texas Instruments

This reference design is an isolated DC/DC converter turn-key design that delives high efficiency up to 85% from ultra-low power up to 60 mW. Open-loop control removes the need for opto-couplers: while a primary side half-bridge topology operating at 60 kHz and secondary side Schottky rectification provides low-switching losses: enabling highly-efficient power conversion. The single-side populated PCB board provides a convenient tool for evaluation and on-the-fly optimization of the design with adequate headers: jumpers and test points for covering a wide variety of applications.Watch a TIDA-00349 overview video on the isolated DC/DC converter turn-key reference design.

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Features

Isolated DC/DC converter for 3-V to 5.2-V input with up to 60-mW output powerHighly efficient design for up to 10-mA output current with up to 86% efficiencyOpen-loop: optocoupler-less designSynchronization output and fixed switching frequency enable use in noise sensitive applicationsFlexible configurable board enables easy evaluation and modificationDesign guide provides detailed description and performance test data