LT3080ET#PBF Description

The LT3080ET#PBF is a 1.1A low dropout linear regulator that can be paralleled to increase output current or spread heat in surface-mounted boards. Architected as a precision current source and voltage follower allows this new regulator is to be used in many applications requiring high current, adjustability to zero, and no heat sink. Also, the LT3080ET#PBF brings out the collector of the pass transistor to allow low dropout operation —down to 350 millivolts—when used with multiple supplies.

LT3080ET#PBF Features

Outputs May Be Paralleled for Higher Current and Heat Spreading

Output Current: 1.1A

Single Resistor Programs Output Voltage

1% Initial Accuracy of SET Pin Current

Output Adjustable to 0V

Low Output Noise: 40µVRMS (10Hz to 100kHz)

Wide Input Voltage Range: 1.2V to 36V

Low Dropout Voltage: 350mV (Except SOT-223 Package)

<1mV Load Regulation

<0.001%/V Line Regulation

Minimum Load Current: 0.5mA

Stable with 2.2µF Minimum Ceramic Output Capacitor

Current Limit with Foldback and Overtemperature Protected

Available in 8-Lead MSOP, 3mm × 3mm DFN,

5-Lead DD-Pak, TO-220 and 3-Lead SOT-223

AEC-Q100 Qualified for Automotive Applications

LT3080ET#PBF Applications

High Current All Surface Mount Supply

High Efficiency Linear Regulator

Post Regulator for Switching Supplies

Low Parts Count Variable Voltage Supply

Low Output Voltage Power Supplies