Low parts count DC/DC converter circuit with 3.3V and 5V outputs
Ron Vinsant
Abstract
A simple low cost dual output step-down converter circuit based on the LT1076 five terminal switching regulator is described.
Keywords
Dual output DC/DC converter
Switching regulator
LT1076
This design note describes a simple low cost dual output step-down converter circuit based on the LT1076 five terminal switching regulator.
Performance
Input voltages can range from 8V to 30V. The load range on the 5V is 0.05A to 0.5A while the 3.3V load range is 0.1A to 1A. The circuit is self-protecting under no load conditions; it will “burp” in the same fashion as many off-line flyback power supplies.
Output voltage regulation is excellent. Over ...
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