LM2991S - Texas Instruments

Manufacturer Part Number

LM2991S

Manufacturer

Texas Instruments

Introduction

Low drop-out negative voltage regulator suitable for various power management applications.

Product Features and Performance

Negative output adjustable voltage regulator

Single regulator design for simplicity

Capable of handling input voltages up to -26V

Adjustable output voltage range between -3V to -24V

Supports a maximum current output of 1A

Excellent power supply rejection ratio (PSRR) of 60dB at 1kHz

Surface mount package type for PCB integration

Product Advantages

Low dropout voltage of max 1V at 1A load

Minimal quiescent current of 0.7 mA enhances power efficiency

Features over temperature and short circuit protection

Enable control feature for better power management

Suitable for operating in extreme temperatures ranging from -40°C to 125°C

Key Technical Parameters

Voltage - Input (Max): -26V

Voltage - Output (Min/Fixed): -3V

Voltage - Output (Max): -24V

Voltage Dropout (Max): 1V @ 1A

Current - Output: 1A

Current - Quiescent (Iq): 0.7 mA

Current - Supply (Max): 5 mA

PSRR: 60dB (1kHz)

Quality and Safety Features

Over Temperature Protection

Short Circuit Protection

Compatibility

Compatible with surface mount technology

Mounting Type: Surface Mount

Package / Case: TO-263-6, D2PAK (5 Leads + Tab), TO-263BA

Supplier Device Package: TO-263 (DDPAK-5)

Application Areas

Power management for consumer electronics

Industrial control systems

Telecommunication infrastructure

Automotive electronics

Product Lifecycle

Product Status: Last Time Buy

End of life product with replacements or upgrades needed

Several Key Reasons to Choose This Product

Robust build capable of enduring harsh temperatures

High efficiency with low quiescent current for battery-powered devices

Adjustable output voltage for a versatile range of applications

Compact surface mount package simplifies PCB design

Protected against common electrical faults for enhanced safety

EOF (end of file) for manufacturing, presenting an opportunity for final purchases before discontinuation