LDK715PU42R - STMicroelectronics

Manufacturer Part Number

LDK715PU42R

Manufacturer

stmicroelectronics

Introduction

The LDK715PU42R is a low drop out (LDO) voltage regulator designed for stable and efficient performance in power management applications.

Product Features and Performance

Positive output configuration with fixed output type

Supports a maximum input voltage of 24V

Delivers a consistent fixed output of 4.2V

Maximum voltage dropout of 1V at 85mA load

Output current capacity of 85mA

Very low quiescent current of 7 µA

Maximum supply current of 8.5 µA

Power Supply Rejection Ratio (PSRR) varies from 57dB to 38dB over a frequency range of 100kHz to 1kHz

Built-in over current and over temperature protection

Product Advantages

High efficiency with minimal voltage drop

Extremely low quiescent current enhances battery life

Suitable for sensitive applications due to good noise rejection (PSRR)

Key Technical Parameters

Voltage Input (Max): 24V

Voltage Output (Min/Fixed): 4.2V

Voltage Dropout (Max): 1V @ 85mA

Current Output: 85mA

Current Quiescent (Iq): 7 µA

Current Supply (Max): 8.5 µA

PSRR: 57dB ~ 38dB (100kHz ~ 1kHz)

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Compatibility

Surface Mount 8-VDFN Exposed Pad

Packaged in 8-QFN (3x3)

Application Areas

Ideal for battery-powered devices

Suitable for IoT devices

Used in portable and wearable technology

Product Lifecycle

Currently Active

No reported discontinuation or planned obsolescence, ensuring availability for ongoing and new designs

Several Key Reasons to Choose This Product

High efficiency for extended battery life in portable applications

Ultra-low quiescent current minimizes power wastage when idle

Robust protection features safeguard the device from thermal and current stresses

Excellent PSRR ensures stable output despite variations in input voltage

Compact and surface-mountable design makes it ideal for space-constrained applications