LD3985J18R - STMicroelectronics

Manufacturer Part Number

LD3985J18R

Manufacturer

STMicroelectronics

Introduction

Low drop-out voltage regulator designed for power management applications

Product Features and Performance

Single fixed 1.8V output

150mA current output

Low quiescent current of 150 µA

PSRR of 60dB at 1kHz to 50dB at 10kHz

Enable control feature

Product Advantages

High efficiency due to low dropout operation

Enhanced power supply rejection ratio

Overcurrent and overtemperature protection for safety

Key Technical Parameters

Voltage - Input (Max): 6V

Voltage - Output (Min/Fixed): 1.8V

Current - Output: 150mA

Current - Quiescent (Iq): 150 µA

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

Quality and Safety Features

Built-in overcurrent protection

Overtemperature protection for device longevity

Compatibility

Surface mount 5-WFBGA, FCBGA package

Compatible with 5-FlipChip (1.59x1.24) board layout

Application Areas

Suitable for low-power electronics

Ideal for battery-powered devices

Product Lifecycle

Obsolete status

Alternatives may be offered by the manufacturer

Key Reasons to Choose This Product

Low power consumption extending battery life

Good noise rejection in the 1kHz to 10kHz range

Compact packaging ideal for space-limited applications

Operating temperature range suitable for industrial and automotive markets

Built-in safety features ensure long-term reliability