LP38843S-1.2 - Texas Instruments

Manufacturer Part Number

LP38843S-1.2

Manufacturer

texas-instruments

Introduction

The LP38843S-1.2 is a low dropout (LDO) linear voltage regulator designed to deliver a fixed output of 1.2V with a current load up to 3A.

Product Features and Performance

Fixed output voltage of 1.2V

Supports up to 3A output current

Ultra low dropout of 0.5V at 3A load

Quiescent current of 30µA, maximizes battery life

Maximum input voltage of 5.5V

PSRR of 80dB to 65dB between 120Hz and 1kHz, ensuring stable output

Incorporates enable control feature for power savings

Offers protection against overcurrent, overtemperature, and short circuit

Product Advantages

High efficiency due to low dropout

Suitable for battery-powered equipment due to low quiescent current

Robust protection features enhance reliability

High PSRR ensures stable voltage supply against fluctuations

Key Technical Parameters

Voltage Input (Max): 5.5V

Voltage Output (Min/Fixed): 1.2V

Current Output: 3A

Voltage Dropout (Max): 0.5V @ 3A

Current Quiescent (Iq): 30 µA

PSRR: 80dB ~ 65dB (120Hz ~ 1kHz)

Quality and Safety Features

Overcurrent protection

Overtemperature protection

Short circuit protection

Compatibility

Surface Mount mounting type

Manageable within a broad range of temperature from -40°C to 125°C

TO-263-6, D2PAK (5 Leads + Tab), TO-263BA package compatible

Application Areas

Power supply regulation for digital systems

Battery-powered devices

Microprocessors and microcontroller supply

Peripheral supplies

Product Lifecycle

Marked as Obsolete

Check for potential replacements or upgrades from texas-instruments

Several Key Reasons to Choose This Product

Highly efficient for applications requiring up to 3A current

Minimal power loss due to ultra low dropout feature

Enhanced battery life for portable devices due to low quiescent current

High reliability and robustness provided by protection features

Stable output across varying loads and supply fluctuations