L78L18ACUTR - STMicroelectronics

Manufacturer Part Number

L78L18ACUTR

Manufacturer

STMicroelectronics

Introduction

L78L18ACUTR is a linear voltage regulator that provides a fixed 18V output.

Product Features and Performance

Fixed 18V output voltage

Output current up to 100mA

Operates within a wide input voltage range up to 40V

Positive output configuration

Low quiescent current of 6 mA

High Power Supply Rejection Ratio (PSRR) of 38dB at 120Hz

Product Advantages

Efficiency in maintaining a stable output voltage

Low dropout performance allows operation close to the input voltage

Over current, over temperature, and short circuit protection enhance safety

Key Technical Parameters

Number of Regulators: 1

Voltage - Input (Max): 40V

Voltage - Output (Min/Fixed): 18V

Current - Output: 100mA

Current - Quiescent (Iq): 6 mA

Current - Supply (Max): 6.5 mA

PSRR: 38dB (120Hz)

Quality and Safety Features

Built-in protection features prevent damage from over current, over temperature, and short circuits

Compatibility

Compatible with various electronic circuits requiring a stable 18V supply

Mounting Type: Surface Mount

Package / Case: TO-243AA

Supplier Device Package: SOT-89-3

Application Areas

Consumer Electronics

Power Management Systems

Embedded Systems

Industrial Controls

Product Lifecycle

Status: Active, not nearing discontinuation

Continued manufacturer support with replacements and possible upgrades

Several Key Reasons to Choose This Product

Reliable output voltage stabilization for consistent performance

Integrated safety features for robust operation

High input voltage range compatibility, making it versatile for different applications

STMicroelectronics' reputation for producing quality components

Compact surface mount package suitable for space-constrained applications