LM7912CT - Texas Instruments

Manufacturer Part Number

LM7912CT

Manufacturer

Texas Instruments

Introduction

The LM7912CT is a linear voltage regulator from Texas Instruments designed to provide a fixed negative output voltage of -12V.

Product Features and Performance

Fixed output voltage of -12V

Maximum input voltage of -35V

Output current capacity of 1.5A

Low dropout voltage: 1.1V @ 1A

Power Supply Rejection Ratio (PSRR) of 70dB at 120Hz

Available in a TO-220-3 package

Through-hole mounting type for easy integration

Operational over a wide temperature range from 0°C to 125°C

Product Advantages

High reliability and stability due to Texas Instruments' manufacturing standards

Capable of handling high input voltages up to -35V, making it suitable for various applications

Low dropout voltage improves efficiency in applications

Built-in over-temperature and short-circuit protection enhances safety and product lifespan

Key Technical Parameters

Voltage Input (Max): -35V

Voltage Output (Min/Fixed): -12V

Current Output: 1.5A

Voltage Dropout (Max): 1.1V @ 1A

Current Quiescent (Iq): 1.5 mA

PSRR: 70dB (120Hz)

Operating Temperature: 0°C ~ 125°C

Quality and Safety Features

Over temperature protection

Short circuit protection

Compatibility

Compatible with a wide range of electronic devices requiring a stable -12V supply

Through-hole mounting suits standard PCB designs

Application Areas

Power supply units

Industrial equipment

Consumer electronics

Automotive applications

Telecommunication systems

Product Lifecycle

Product Status: Last Time Buy, indicating it is nearing discontinuation

Customers should seek replacements or upgrades for future projects

Several Key Reasons to Choose This Product

High reliability from a reputable manufacturer, Texas Instruments

Broad compatibility and easy integration with various electronic setups

Enhanced safety features, including over temperature and short circuit protection

Supports a wide range of applications with a fixed -12V output and up to 1.5A output current

Suitable for use in harsh environments given its wide operational temperature range