L79L05ACD - STMicroelectronics

Manufacturer Part Number

L79L05ACD

Manufacturer

stmicroelectronics

Introduction

The L79L05ACD is a linear, low drop-out (LDO) regulator designed for power management, capable of providing a fixed negative output voltage of -5V.

Product Features and Performance

Provides a stable negative output voltage of -5V

Output current capability of up to 100mA

Low quiescent current of 5.5 mA, maximizing energy efficiency

Features over-temperature and short-circuit protection enhancing device reliability

High PSRR (Power Supply Rejection Ratio) of 49dB at 120Hz for noise reduction in power supply

Product Advantages

Reliability through internal protection features

Energy-efficient due to low quiescent current

Suitable for battery-powered devices due to its low power consumption

Key Technical Parameters

Output Configuration: Negative

Voltage Input (Max): -30V

Voltage Output (Min/Fixed): -5V

Current Output: 100mA

Current Quiescent (Iq): 5.5 mA

PSRR: 49dB (120Hz)

Operating Temperature Range: 0°C ~ 125°C

Quality and Safety Features

Over Temperature Protection

Short Circuit Protection

Compatibility

Surface mount compatible, within an 8-SOIC package, suitable for compact PCB layouts

Application Areas

Power supply circuits requiring a stable negative voltage output

Battery-powered devices

Electronic devices requiring noise reduction in power supply

Product Lifecycle

Classified as Obsolete, indicating the end of its production lifecycle

Users should seek replacements or consider upgrades for future designs

Several Key Reasons to Choose This Product

Reliable performance due to in-built protection features against overheating and short-circuits

High PSRR value ensures minimal noise interference in sensitive electronics

Low quiescent current enhances battery life in portable applications

Suitable for applications needing a stable -5V output with minimal energy waste

Although obsolete, its performance parameters offer insights for selecting suitable replacements