UA78L05ACPK - Texas Instruments

Manufacturer Part Number

UA78L05ACPK

Manufacturer

Texas Instruments

Introduction

The UA78L05ACPK is a linear voltage regulator designed to provide a fixed 5V output from an input up to 20V. It is part of the power management integrated circuits category, specifically within the low-dropout (LDO) regulators.

Product Features and Performance

Fixed 5V output voltage

Supports up to 20V input voltage

Low dropout voltage of 1.7V at 40mA load

Output current capability of 100mA

Power Supply Rejection Ratio (PSRR) of 49dB at 120Hz

Over current, over temperature, reverse polarity, and short circuit protection

Operating temperature range from 0°C to 125°C

Product Advantages

Provides stable 5V output for various applications

High input voltage tolerance allows flexibility in sourcing power

Low dropout enhances efficiency, especially in low input voltage scenarios

Comprehensive protection improves reliability and safety of the end application

Wide operating temperature range suits challenging environmental conditions

Key Technical Parameters

Voltage Input (Max): 20V

Voltage Output (Min/Fixed): 5V

Voltage Dropout (Max): 1.7V @ 40mA

Current Output: 100mA

PSRR: 49dB (120Hz)

Operating Temperature: 0°C ~ 125°C

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Reverse Polarity Protection

Short Circuit Protection

Compatibility

Surface Mount TO-243AA package compatible with various PCB designs

SOT-89-3 supplier device package standard ensuring broad machinery compatibility

Application Areas

Consumer Electronics

Telecommunications

Automotive Systems

Power Supply Modules

Product Lifecycle

Active status, not currently nearing discontinuation

Availability of replacements or upgrades is ongoing, ensuring support for future projects

Several Key Reasons to Choose This Product

Reliable fixed 5V output suitable for a wide range of electronics

High input voltage range offering flexibility in power source selection

Low dropout voltage for improved efficiency

Comprehensive protection features for enhanced safety and reliability

Texas Instruments' reputation for high-quality and durable components

Broad application possibilities from consumer electronics to automotive systems

Active product lifecycle status ensures long-term availability and support