LD39100PU12R - STMicroelectronics

Manufacturer Part Number

LD39100PU12R

Manufacturer

stmicroelectronics

Introduction

The LD39100PU12R is a low drop-out linear regulator designed for power management, specifically in applications requiring a fixed output with minimum input-output differential voltage.

Product Features and Performance

Fixed output linear regulator

Voltage input maximum of 5.5V

Voltage output fixed at 1.2V

Voltage dropout maximum of 0.4V at 1A load

Output current capability of 1A

Low quiescent current of 50 µA

Maximum supply current of 300 µA

Power supply rejection ratio ranges between 65dB and 62dB at frequencies from 1kHz to 10kHz

Built-in features for enabling/disabling the regulator, and power good signal

Over current, over temperature, and short circuit protection

Product Advantages

Efficient power conversion with low voltage dropout helps to maximize battery life

Low quiescent current enhances power efficiency for battery-powered devices

Built-in protection features increase product reliability and safety

Compact 6-VDFN Exposed Pad package suitable for space-constrained applications

Key Technical Parameters

Voltage Input (Max): 5.5V

Voltage Output (Min/Fixed): 1.2V

Voltage Dropout (Max): 0.4V @ 1A

Current Output: 1A

Current Quiescent (Iq): 50 µA

PSRR: 65dB ~ 62dB (1kHz ~ 10kHz)

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Short Circuit Protection

Compatibility

Suitable for battery-powered devices

Compatible with surface mount technology for PCB assembly

Application Areas

Consumer Electronics

Portable Devices

Network Systems

Battery Management Systems

Product Lifecycle

Currently active with ongoing production

Not nearing discontinuation, replacements or upgrades yet to be announced

Several Key Reasons to Choose This Product

High efficiency with low dropout voltage ideal for stable voltage supply

Minimal power loss with low quiescent current usage contributing to longer battery life

Robust protection features ensure safety and long-term reliability

Compact package and surface mount compatibility allow for versatile use in a variety of electronic applications

Active product support and lifecycle stability ensuring long-term availability