LD39030DTPU105R - STMicroelectronics

Manufacturer Part Number

LD39030DTPU105R

Manufacturer

STMicroelectronics

Introduction

Low Drop Out linear voltage regulator for power management

Product Features and Performance

Linear Voltage Regulator LDO

Fixed 1.05V output

Low dropout voltage of 0.33V at 300mA

PSRR of 80dB at 1kHz reducing to 55dB at 100kHz

Low quiescent current of 40 µA

Current capacity of 300mA output

Stable with low ESR ceramic capacitors

Enable control feature

Protection against overcurrent and over temperature

Soft Start capability

High-temperature operation up to 125°C

Product Advantages

High power supply rejection ratio (PSRR)

Energy efficient with low quiescent current

Thermal protection enhancing reliability

Suitable for high-temperature environments

Compact 4-DFN package with exposed pad for better thermal dissipation

Key Technical Parameters

Input voltage up to 5.5V

Output voltage fixed at 1.05V

Dropout voltage of 0.33V @ 300mA

Output current of 300mA

PSRR: 80dB to 55dB between 1kHz to 100kHz

Quality and Safety Features

Overcurrent protection

Overtemperature protection

Soft Start to minimize inrush current

Compatibility

Compatible with surface mount technology

Suitable for use with low ESR ceramic capacitors

Application Areas

Portable electronics, consumer applications, embedded systems

Product Lifecycle

Active status

Not nearing discontinuation

Replacement or upgrade options available through STMicroelectronics

Several Key Reasons to Choose This Product

Optimized for battery-powered applications

Enhanced power supply stability and noise rejection

Reliable performance in extensive operational temperature range

Industry-leading LDO technology from a reputable manufacturer

Space-saving package ideal for compact designs