Efficient dual polarity output converter fits into tight spaces
Keith Szolusha
Abstract
LT1956- and LT3431-based dual polarity output converters that can provide power for ±5V loads with a single buck regulator are described.
Keywords
Buck regulator
Dual polarity output converter
LT1956
LT3431
Introduction
This design note describes a compact and efficient ±5V output dual polarity converter that uses a single buck regulator. The topology shown features 3mm maximum circuit height, high efficiency and low output voltage ripple on a 5V output—important considerations for many battery-powered, handheld and noise-sensitive devices. This combination of features is not easily achievable with other commonly used dual polarity topologies. ...
Get Analog Circuit Design Volume Three now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
