UA78L09ACPK - Texas Instruments

Manufacturer Part Number

UA78L09ACPK

Manufacturer

Texas Instruments

Introduction

The UA78L09ACPK is a linear voltage regulator designed for power management, providing a fixed 9V output from an input up to 24V.

Product Features and Performance

Linear Low Drop Out (LDO) Voltage Regulator

Positive Output Configuration

Single Regulator Design

24V Maximum Input Voltage

Fixed 9V Output Voltage

7V Maximum Voltage Dropout at 40mA Load

100mA Output Current Capability

45dB Power Supply Rejection Ratio (PSRR) at 120Hz

Product Advantages

High PSRR minimizing ripple from the source

Low dropout voltage for better efficiency

Protection features include Over Current, Over Temperature, Reverse Polarity, and Short Circuit protection

Key Technical Parameters

Voltage - Input (Max): 24V

Voltage - Output (Min/Fixed): 9V

Voltage Dropout (Max): 1.7V @ 40mA

Current - Output: 100mA

PSRR: 45dB at 120Hz

Quality and Safety Features

Built-in Over Current Protection

Built-in Over Temperature Protection

Reverse Polarity Protection

Short Circuit Protection

Compatibility

Designed for surface mount with SOT-89-3 package

Compatible with a wide range of sub-circuits requiring a 9V supply

Application Areas

Consumer Electronics

Industrial Controls

Telecommunication Systems

Portable Devices

Product Lifecycle

Last Time Buy status

Potential need for identifying replacement or upgrade due to discontinuation

Several Key Reasons to Choose This Product

Robust protection features for reliable operation

Texas Instruments' reputation for high-quality components

Low dropout voltage to maximize efficiency

Wide input voltage range suitable for various applications

Positive fixed output for ease of design

High PSRR for stable voltage supply in noisy environments