LDK320AM33R - STMicroelectronics

Manufacturer Part Number

LDK320AM33R

Manufacturer

STMicroelectronics

Introduction

LDK320AM33R is a voltage regulator chip belonging to the category of Power Management Integrated Circuits, specifically designed as a Low Drop Out (LDO) linear regulator.

Product Features and Performance

Low Drop Out (LDO) Voltage Regulator

Fixed 3.3V Output Voltage

200mA Output Current

18V Maximum Input Voltage

35V Maximum Voltage Dropout at 200mA

90 µA Quiescent Current

100 µA Maximum Supply Current

Power Supply Rejection Ratio (PSRR): 88dB ~ 48dB (120Hz ~ 10kHz)

Enable Control Feature

Surface Mount Package

Product Advantages

Efficient power regulation for low voltage applications

Low quiescent current for power-sensitive projects

High PSRR for better noise immunity

Enable feature for power-saving modes

Thermal and overcurrent protection for safety and reliability

Key Technical Parameters

Positive Output Configuration

Voltage - Output (Min/Fixed): 3.3V

Current - Output: 200mA

Voltage - Input (Max): 18V

Voltage Dropout (Max): 0.35V @ 200mA

Current - Quiescent (Iq): 90 µA

Current - Supply (Max): 100 µA

Operating Temperature: -40°C ~ 125°C (TJ)

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Compatibility

Compatible with various microcontrollers and digital systems requiring a fixed 3.3V supply

Broad operating temperature range for use in diverse environments

Application Areas

Consumer Electronics

Industrial Control

Automotive systems

Telecommunications

Product Lifecycle

Status: Active

Indication of a stable lifecycle with no nearing discontinuation at the time of reporting

Replacements or upgrades may become available as technology evolves

Several Key Reasons to Choose This Product

Reliable performance from a reputable manufacturer, STMicroelectronics

Highly suitable for portable and battery-powered devices due to low quiescent current

Optimal for noise-sensitive applications given its high PSRR across a frequency range

Ease of integration with Enable control feature, providing design flexibility

Extended operational temperature range catering to a wide array of applications

Multi-layered protection features ensuring the longevity and safety of both the LDO and the application systems it powers