LP3852, LP3855

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SNVS174I – FEBRUARY 2003 – REVISED FEBRUARY 2015

9 Detailed Description

9.1 Overview

The LP3852 and LP3855 series of fast ultra-low dropout linear regulators operate from a 2.5-V to 7-V input

supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators

respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor

applications. The LP3852 and LP3855 are developed on a CMOS process which allows low quiescent current

operation independent of output load current. This CMOS process also allows the LP3852 and LP3855 to

operate under extremely low dropout conditions.

9.2 Functional Block Diagrams

Figure 14. LP3852 Block Diagram

Figure 15. LP3855 Block Diagram

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Product Folder Links: LP3852 LP3855