LM2990S-5.0 - Texas Instruments

Manufacturer Part Number

LM2990S-5.0

Manufacturer

texas-instruments

Introduction

The LM2990S-5.0 is a negative output, fixed voltage, low dropout (LDO) linear regulator. It's specifically designed for operation in rugged applications with advanced protection features. Packaging in a tube ensures optimal protection during transportation and storage.

Product Features and Performance

Negative output configuration

Fixed output voltage of -5V

Can handle input voltages up to -26V

Maintains a low dropout voltage of 1V at 1A load

Output current capability of up to 1.8A

Power Supply Rejection Ratio of 58dB at 1kHz

Product Advantages

High reliability under various temperature ranges (-40°C to 125°C)

Advanced thermal and short circuit protection features

Efficient performance with a minimal quiescent current of 1 mA

Key Technical Parameters

Input Voltage (Max): -26V

Output Voltage (Min/Fixed): -5V

Dropout Voltage (Max): 1V @ 1A

Output Current: 1.8A

Quiescent Current: 1 mA

Supply Current (Max): 5 mA

PSRR: 58dB (1kHz)

Quality and Safety Features

Over Temperature Protection

Short Circuit Protection

Compatibility

Surface mount technology

Fits in TO-263-4, D2PAK (3 Leads + Tab), TO-263AA packages

Application Areas

Suitable for automotive, telecommunications, and industrial applications where ruggedized power regulation is needed.

Product Lifecycle

Status: Last Time Buy

Indicates approaching discontinuation with a need to consider replacements or upgrades.

Several Key Reasons to Choose This Product

Robust output voltage of -5V suitable for negative voltage applications

High current output capacity of 1.8A ideal for higher load demands

Low dropout voltage to ensure efficient operation at close-to-maximum input levels

Superior protection mechanisms safeguarding against thermal overload and circuit shorts

High PSRR offering stable performance against supply noise

Includes the option of surface mounting, which suits modern PCB designs