LD3985M33R - STMicroelectronics

Manufacturer Part Number

LD3985M33R

Manufacturer

stmicroelectronics

Introduction

The LD3985M33R is a part of the Low Dropout (LDO) voltage regulators designed specifically for power management applications. It ensures efficient voltage regulation for various electronic devices.

Product Features and Performance

Fixed output voltage of 3.3V

Maximum input voltage of 6V

Low dropout voltage of 0.1V at 150mA load

Output current of 150mA

Quiescent current of 150 µA

Supply current of maximum 250 µA

Power Supply Rejection Ratio (PSRR) of 60dB to 50dB between 1kHz and 10kHz

Enabled control features for operational management

Includes Over Current and Over Temperature protection

Operates effectively within a temperature range of -40°C to 125°C

Product Advantages

High-efficiency power regulation

Minimal power loss with a low dropout feature

Compact SOT-23-5 package suitable for surface mounting, providing space efficiency on boards

Robust thermal and current protection ensuring device safety and reliability

Key Technical Parameters

Input Voltage (Max): 6V

Output Voltage (Min/Fixed): 3.3V

Voltage Dropout (Max): 0.1V @ 150mA

Output Current: 150mA

Quiescent Current (Iq): 150 µA

PSRR: 60dB ~ 50dB (1kHz ~ 10kHz)

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Over Current and Over Temperature protections

Optimized for high reliability and performance stability across varying conditions

Compatibility

Compatible with a wide range of electronic circuits that require a 3.3V power source

Application Areas

Consumer electronics

Telecommunication devices

Computing devices

Portable and battery-powered devices

Product Lifecycle

The product status is currently active

Not nearing discontinuation, ensuring long-term availability and support

Several Key Reasons to Choose This Product

Efficient regulation with low dropout voltage proactively minimizes power loss

Supports a wide operating temperature range making it suitable for various environments

Compact and robust package design apt for modern electronic device requirements

Strong protection features safeguard against common electrical issues, enhancing reliability

Optimal power consumption with low quiescent and supply current features for energy-sensitive applications