LD2985AM18R - STMicroelectronics

Manufacturer Part Number

LD2985AM18R

Manufacturer

stmicroelectronics

Introduction

Low Drop Out linear regulator designed for power management

Product Features and Performance

Positive output configuration

Fixed output type

Single regulator configuration for simpler designs

Max Input voltage of 16V ensures compatibility with various sources

Fixed 1.8V output voltage for consistent performance

Low dropout of 0.575V at 150mA to maintain voltage stability

150mA output current capacity for light to medium load applications

Ultra-low quiescent current of 150 µA for power saving

Maximum supply current of 4 mA for minimal impact on power source

Good power supply rejection ratio (PSRR) of 45dB at 1kHz

Product Advantages

High reliability and manufacturability with stmicroelectronics' reputation

Built-in current and thermal protection enhances safety

Enable control feature for easy on/off operations

Key Technical Parameters

Input Voltage (Max): 16V

Output Voltage (Min/Fixed): 1.8V

Voltage Dropout (Max): 0.575V @ 150mA

Output Current: 150mA

Quiescent Current (Iq): 150 µA

Supply Current (Max): 4 mA

PSRR: 45dB (1kHz)

Quality and Safety Features

Over current protection to prevent damage

Over temperature protection for thermal safety

Compatibility

Operating Temperature range of -40°C to 125°C

Surface Mount (SC-74A, SOT-753 package) for standard PCB design

SOT-23-5 device package for compatibility with existing layouts

Application Areas

Portables, battery-powered applications

Microcontroller power supply

Low power electronics

Product Lifecycle

Obsolete

Alternatives or replacement products should be sought

Several Key Reasons to Choose This Product

Embodies stmicroelectronics' quality and reliability standards

Low dropout voltage ideal for battery-operated devices

Energy-efficient with ultra-low quiescent current

Designed with key safety features for robust operation

Ease of integration with standard SOT package compatibility