MC7809BT - onsemi

Manufacturer Part Number

MC7809BT

Manufacturer

onsemi

Introduction

The MC7809BT from onsemi is a linear, low drop-out (LDO) voltage regulator within their Power Management IC category, specifically designed to provide a fixed output voltage of 9V.

Product Features and Performance

Linear LDO voltage regulator with positive output configuration

Fixed output voltage of 9V

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

Output current capacity of 1A

Quiescent current of 8 mA

Power Supply Rejection Ratio (PSRR) of 61dB at 120Hz

Product Advantages

High reliability with over temperature and short circuit protection

Suitable for a wide range of input voltage (up to 35V)

Low dropout voltage enhances efficiency

Stable operation with a simple external capacitor

Key Technical Parameters

Voltage Input (Max): 35V

Voltage Output (Min/Fixed): 9V

Voltage Dropout (Max): 2V @ 1A

Current Output: 1A

Current Quiescent (Iq): 8 mA

PSRR: 61dB (120Hz)

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Over Temperature Protection

Short Circuit Protection

Compatibility

Through-hole mounting simplifies integration

Compatible with a wide range of applications requiring a stable 9V output

Application Areas

Power supply circuits

Consumer electronics

Automotive applications

Industrial controls

Product Lifecycle

Obsolete status implies limited availability; no direct replacements or upgrades specified. Users should consider alternative solutions for new designs.

Several Key Reasons to Choose This Product

Trusted manufacturer with a track record of reliable performance

Low dropout voltage improves system efficiency

Built-in protection features enhance system safety

Wide operating temperature range suits harsh environments

Suitable for a variety of applications thanks to its versatility and robustness