LD3985G33R - STMicroelectronics

Manufacturer Part Number

LD3985G33R

Manufacturer

stmicroelectronics

Introduction

The LD3985G33R is an obsolete low dropout (LDO) regulator designed for power management, providing a fixed output voltage of 3.3V with a maximum input voltage of 6V.

Product Features and Performance

Positive output configuration with a fixed output type

Single regulator integration

Maximum voltage dropout of 0.1V at 150mA output current

Quiescent current of 150 µA and a maximum supply current of 250 µA

Power Supply Rejection Ratio (PSRR) ranges between 60dB and 50dB for frequencies between 1kHz and 10kHz

Includes enable control feature

Overcurrent and overtemperature protection for improved safety

Product Advantages

Low dropout voltage enhances efficiency

Low quiescent current aids in minimizing power loss when idle

Protection features enhance product reliability and safety

Key Technical Parameters

Voltage - Input (Max): 6V

Voltage - Output (Min/Fixed): 3.3V

Current - Output: 150mA

Voltage Dropout (Max): 0.1V @ 150mA

Current - Quiescent (Iq): 150 µA

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

Quality and Safety Features

Overcurrent protection

Overtemperature protection

Compatibility

Surface mount mounting type

Compatible with SOT-23-5 Thin, TSOT-23-5 package cases

Application Areas

Designed for electronic devices requiring efficient power management

Product Lifecycle

As of the latest update, this product is obsolete. Users should consider replacements or upgrades for future designs.

Several Key Reasons to Choose This Product

Highly efficient for power-sensitive applications due to low dropout voltage

Energy-saving with low quiescent current

Robust safety features including overcurrent and overtemperature protection

Suitable for a wide range of electronic devices due to its compatibility with common mounting types and package cases