High-Efficiency Reg has Low Drop-Out Voltage (Rev. B)

Texas Instruments

Published Date: 04/23/2013

Description

Conventional regulators have a high drop-out voltage that is a function of the total output current.However with just a regulator chip an external transistor and a few passive components this designforms a high output current regulator with a limited input voltage and high efficiency. The circuit presentedhas a drop-out of 0.7V at 5A load current and 1.3V at a current level of as high as

Parts

Part Number Name Companion Part
LM2931AT-5.0 LM2931AT-5.0 Buy Datasheet
LM2931AZ-5.0/LFT4 LM2931AZ-5.0/LFT4 Buy Datasheet
LM2931CM/NOPB LM2931CM/NOPB Buy Datasheet
LM2931CMX LM2931CMX Buy Datasheet
LM2931CMX/NOPB LM2931CMX/NOPB Buy Datasheet
LM2931CS LM2931CS Buy Datasheet
LM2931M-5.0 LM2931M-5.0 Buy Datasheet
LM2931M-5.0/NOPB LM2931M-5.0/NOPB Buy Datasheet
LM2931T-5.0 LM2931T-5.0 Buy Datasheet