Skip to Main Content
Power Supply Cookbook, 2nd Edition
book

Power Supply Cookbook, 2nd Edition

by Marty Brown
June 2001
Intermediate to advanced content levelIntermediate to advanced
280 pages
10h 38m
English
Newnes
Content preview from Power Supply Cookbook, 2nd Edition
dropout voltage may be higher. For applications where the input voltage may
come even closer than 1.8–2.5VDC to the output voltage, a low dropout regu-
lator is recommended. This topology utilizes a PNP pass transistor, which now
derives its base-emitter voltage from the output voltage instead of the head-
room or input voltage (see Figure 2–2b). This allows the regulator to have a
dropout voltage of 0.6VDC minimum. P-Channel MOSFETs can also be used
in this function and can exhibit dropout voltages close to zero volts.
The dropout voltage becomes a driving issue when the input to the linear
regulator during normal operation is allowed to fall close ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Analog Circuits Cookbook, 2nd Edition

Analog Circuits Cookbook, 2nd Edition

Ian Hickman

Publisher Resources

ISBN: 9780750673297