LM7905CT/NOPB - Texas Instruments

Manufacturer Part Number

LM7905CT/NOPB

Manufacturer

Texas Instruments

Introduction

The LM7905 is a negative voltage regulator that provides a stable -5V output from an input voltage as high as -25V. It is a member of the popular LM79XX series of three-terminal linear voltage regulators. The LM7905 is designed to provide regulation and thermal overload protection in a wide range of negative voltage regulator applications.

Product Features and Performance

Negative output voltage of -5V

Input voltage range up to -25V

Output current capability of 1.5A

Low voltage dropout at full load (1.1V @ 1A)

Quiescent current of only 1mA

High Power Supply Rejection Ratio (PSRR) of 66dB at 120Hz

Thermal overload and short-circuit protection

Product Advantages

Excellent line and load regulation

Stable operation with virtually no external components

Compact TO-220 package for efficient heat dissipation

Pin-compatible with older 79XX series regulators

Key Reasons to Choose This Product

Reliable and robust negative voltage regulation

Suitable for a wide range of applications requiring a stable -5V supply

Easy to implement with minimal external components

Cost-effective solution for negative voltage regulation needs

Quality and Safety Features

Proven Texas Instruments quality and reliability

Thermal overload and short-circuit protection for safe operation

Operating temperature range of 0°C to 125°C

Compatibility

The LM7905 is pin-compatible with other 79XX series negative voltage regulators, allowing for easy replacement and upgrades.

Application Areas

Negative voltage power supplies

Analog and digital circuits requiring a stable -5V rail

Telecommunications equipment

Industrial control systems

Medical equipment

Product Lifecycle

The LM7905 is an active product and is still in production. There are no announced plans for discontinuation. Equivalent or alternative models that provide similar functionality include the LM7906 (-6V) and LM7912 (-12V) regulators from our website's sales team.