LDS3985PU33RY - STMicroelectronics

Manufacturer Part Number

LDS3985PU33RY

Manufacturer

STMicroelectronics

Introduction

Low Drop Out (LDO) Linear Voltage Regulator designed for power management.

Product Features and Performance

High PSRR: 55dB ~ 50dB from 1kHz to 10kHz

Low Dropout Voltage: 0.25V maximum at 300mA load

Fixed Output Voltage: 3.3V

Low Quiescent Current: 150 µA

Maximum Supply Current: 300 µA

Shutdown Control Feature

Over Current and Over Temperature Protection

Product Advantages

High noise immunity with high PSRR

Energy efficient with low quiescent current

Robust protection features enhance safety

Suitable for automotive applications with AEC-Q100 qualification

Surface Mount 6-VDFN Exposed Pad for compact design

Key Technical Parameters

Input Voltage (Max): 6V

Output Voltage (Fixed): 3.3V

Current Output: 300mA

Voltage Dropout (Max): 0.25V @ 300mA load

Quiescent Current (Iq): 150 µA

Supply Current (Max): 300 µA

Operating Temperature Range: -40°C to 85°C

Automotive Grade

Quality and Safety Features

Over Current and Over Temperature Protection

Automotive Grade Reliability

AEC-Q100 Qualified

Compatibility

Compatible with Surface Mount Technology

Mounting Type: 6-VDFN Exposed Pad

Application Areas

Automotive Electronics

Consumer Electronics

Industrial Power Supplies

Product Lifecycle

Status: Active

Not nearing discontinuation

Replacements or upgrades available for future improvements

Several Key Reasons to Choose This Product

Optimized for Automotive Use with AEC-Q100 qualification

Low Dropout Performance for efficient operation

High PSRR for better noise rejection

Compact Surface Mount Package for space-sensitive applications

Comprehensive Protection Features ensure long-lasting reliability

Wide Temperature Range capability for diverse operating environments