LDS3985PU15R - STMicroelectronics

Manufacturer Part Number

LDS3985PU15R

Manufacturer

STMicroelectronics

Introduction

The LDS3985PU15R is a low dropout linear regulator optimized for power management applications, designed by STMicroelectronics.

Product Features and Performance

Low drop-out voltage of 0.25V at 300mA load

Fixed output voltage of 1.5V

Capable of delivering up to 300mA of output current

Low quiescent current of 150 µA, reducing power consumption

High PSRR of 55dB to 50dB between 1kHz and 10kHz, providing excellent noise rejection

Shutdown control feature for enhanced power management

Overcurrent and over-temperature protection for safe operation

Product Advantages

High efficiency with low dropout voltage

Minimal power loss due to low quiescent current

Robust protection features ensure reliability and safety

Small 6-VDFN exposed pad package for compact designs

Key Technical Parameters

Voltage Input (Max): 6V

Voltage Output (Min/Fixed): 1.5V

Current Output: 300mA

Voltage Dropout (Max): 0.25V @ 300mA

Current Quiescent (Iq): 150 µA

PSRR: 55dB ~ 50dB (1kHz ~ 10kHz)

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Overcurrent and over-temperature protection

Designed for reliable operation in harsh conditions

Compatibility

Compatible with a wide range of applications due to its fixed output and low dropout

Application Areas

Battery-powered devices

Portable electronics

Microprocessors and DSPs power supply

Wireless and telecom equipment

Product Lifecycle

Status: Active

Not nearing discontinuation, with STMicroelectronics offering continued support and availability

Several Key Reasons to Choose This Product

High reliability and performance with advanced protection features

Low dropout voltage and quiescent current result in efficient power regulation

Versatile application potential due to fixed 1.5V output and compatibility features

STMicroelectronics' commitment to product longevity and support

Compact, surface-mount 6-DFN package fits various design requirements