LDK320M33R - STMicroelectronics

Manufacturer Part Number

LDK320M33R

Manufacturer

STMicroelectronics

Introduction

The LDK320M33R is a high-performance Low Drop Out (LDO) voltage regulator designed for power-sensitive applications.

Product Features and Performance

Positive output configuration with fixed 3.3V output voltage

Supports input voltages up to 18V

Low dropout voltage of 0.35V at 200mA load

Output current capability of 200mA

Low quiescent current of 90µA, reducing power consumption

High PSRR (Power Supply Rejection Ratio) of 88dB to 48dB from 120Hz to 10kHz, ensuring stable output voltage against input noise

Integrated over-current and over-temperature protection enhancing the safety and reliability of the circuit

Features an enable control for efficient power management

Product Advantages

Low dropout voltage enhances efficiency in low voltage applications

High PSRR value ensures stable operation even in noisy environments

Low quiescent current makes it ideal for battery-powered devices

Built-in protection features enhance circuit reliability

Key Technical Parameters

Voltage Input (Max): 18V

Voltage Output (Min/Fixed): 3.3V

Voltage Dropout (Max): 0.35V @ 200mA

Current Output: 200mA

Current Quiescent (Iq): 90µA

PSRR: 88dB ~ 48dB (120Hz ~ 10kHz)

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

Quality and Safety Features

Over Current and Over Temperature protection

Operates efficiently across a wide temperature range of -40°C to 125°C

Compatibility

Surface Mount Mounting Type, in SC-74A, SOT-753 package

Compatible with a wide range of microcontrollers and digital systems

Application Areas

Battery-powered devices

Portable electronics

Low power IoT devices

Energy-efficient power supplies

Product Lifecycle

Currently in Active status, not nearing discontinuation

Availability of replacements or upgrades should be monitored via STMicroelectronics announcements

Several Key Reasons to Choose This Product

High efficiency and low dropout voltage improve battery life in portable devices

High PSRR rating ensures stable performance in fluctuating power supply conditions

Low power consumption is ideal for energy-sensitive applications

Broad compatibility and easy integration into various designs

Robust protection features ensure long-term reliability and safety

Active product status with support from STMicroelectronics ensures long-term availability and technical assistance