L7809ABD2T - STMicroelectronics

Manufacturer Part Number

L7809ABD2T

Manufacturer

stmicroelectronics

Introduction

The L7809ABD2T is a low drop out linear voltage regulator designed to provide a fixed 9V output with a maximum input of 35V.

Product Features and Performance

Fixed 9V output voltage

Supports input voltage up to 35V

Low voltage dropout: 2V @ 1A (Typical)

Maximum output current: 1.5A

Quiescent current: 6 mA

Power Supply Rejection Ratio (PSRR): 61dB (120Hz)

Temperature operational range: -40°C to 125°C

Over Temperature and Short Circuit Protection

Product Advantages

High efficiency with low quiescent current

Robust thermal and short circuit protection

Wide operational temperature range

Key Technical Parameters

Output Type: Fixed

Voltage Input (Max): 35V

Voltage Output (Min/Fixed): 9V

Voltage Dropout (Max): 2V @ 1A

Current Output: 1.5A

Current Quiescent (Iq): 6mA

PSRR: 61dB (120Hz)

Operating Temperature: -40°C to 125°C

Quality and Safety Features

Over Temperature Protection

Short Circuit Protection

Compatibility

Surface mount package: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Application Areas

Power management solutions across various electronic applications

Product Lifecycle

Obsolete Status

Potential need for replacements or seeking upgraded models

Several Key Reasons to Choose This Product

High reliability in harsh temperature conditions

Low drop out feature maintains stable voltage even under varying loads

Effective for high-efficiency applications requiring a stable 9V output

Compact surface mount package suitable for space-restricted applications