LP3874EMP-ADJ - Texas Instruments

Manufacturer Part Number

LP3874EMP-ADJ

Manufacturer

Texas Instruments

Introduction

The LP3874EMP-ADJ is an adjustable low-dropout linear regulator (LDO) designed for power management applications.

Product Features and Performance

Adjustable output voltage from 1.2V to 6.6V

Low dropout voltage of 0.35V at 800mA load

800mA output current capability

Good power supply rejection ratio (PSRR) of 73dB to 57dB at 120Hz

Low quiescent current of 9 mA

Maximum supply current of 15 mA

Enable control feature for power-saving

Product Advantages

High-performance voltage regulation over a wide output range

Flexible usage due to adjustable output

Low dropout feature allows for efficient use in low headroom situations

High PSRR reduces ripple and noise from the supply

Key Technical Parameters

Voltage - Input (Max): 7V

Voltage - Output (Min/Fixed): 1.2V

Voltage - Output (Max): 6.6V

Current - Output: 800mA

Voltage Dropout (Max): 0.35V @ 800mA

Current - Quiescent (Iq): 9 mA

PSRR: 73dB ~ 57dB (120Hz)

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Short Circuit Protection

Compatibility

The SOT-223-5 package is compatible with surface-mount technology (SMT) for printed circuit board (PCB) assembly.

Application Areas

General electronic devices

Telecommunication infrastructure

Computing systems

Consumer electronics

Product Lifecycle

Obsolete

Potential alternative or replacement products may be advised by the manufacturer.

Reasons to Choose This Product

It offers a balance of performance with low dropout, high output current, and adjustable voltage features.

Suitable for a variety of applications due to its wide operating temperature range (-40°C to 125°C).

Enhances safety with built-in over current, over temperature, and short circuit protection.

The enable control feature allows for better power management.

The high PSRR means cleaner voltage regulation for sensitive electronics.