LM2940IMPX-12 - Texas Instruments

Manufacturer Part Number

LM2940IMPX-12

Manufacturer

texas-instruments

Introduction

The LM2940IMPX-12 is a linear, low-dropout voltage regulator designed for power management applications, supporting a fixed 12V output with up to 1A of current from a maximum input of 26V.

Product Features and Performance

Fixed 12V output with low dropout voltage of 1V @ 1A

Supports up to 1A of output current

Low quiescent current of 10 mA

Maximum supply current of 15 mA

Excellent power supply rejection ratio (PSRR) of 66dB at 120Hz

Integrated protection features including Over Current, Over Temperature, Reverse Polarity, and Short Circuit protections

Product Advantages

High efficiency due to low dropout voltage

Reduced power consumption with low Iq

Robust protection features enhance reliability

Wide operating temperature range from -40°C to 85°C

Key Technical Parameters

Voltage Input (Max): 26V

Voltage Output (Min/Fixed): 12V

Current Output: 1A

Voltage Dropout (Max): 1V @ 1A

Current Quiescent (Iq): 10 mA

PSRR: 66dB (120Hz)

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Reverse Polarity Protection

Short Circuit Protection

Compatibility

Surface mountable TO-261-4, TO-261AA package for compatibility with standard SMT processes

Application Areas

Power supply for digital and analog circuits

Automotive electronics

Battery-powered devices

Microcontroller power supply

Product Lifecycle

Obsolete status indicates discontinuation of production

Alternatives or replacements may require consultation with manufacturer for compatibility

Several Key Reasons to Choose This Product

High reliability and protection for a range of electronics applications

Low dropout voltage enhances efficiency

Wide input voltage range suitable for diverse applications

The low quiescent current is ideal for battery-operated devices

Surface-mount package allows for compact PCB designs