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L7809

Description
Linear step-down DC/DC converter
CategoryPower management   
File Size2MB,20 Pages
ManufacturerGuangdong Huaguan Semiconductor Co., Ltd.
Websitehttp://www.hgsemi.net/
Guangdong Huaguan Semiconductor Co., Ltd. was established in 2011. It is a quasi-high-tech enterprise specializing in the research and development, packaging, testing and sales of semiconductor devices. The company has an internationally advanced level of semiconductor discrete devices and integrated circuit packaging and testing production lines, and a technical team with rich experience in the design, packaging and testing of semiconductor devices. It has established long-term strategic cooperative relations with first-class companies in the same industry, and has formed a professional technical development team to engage in the development of new products and new technologies. The company's R&D project products include power management, operational amplifiers, audio amplifiers, interfaces and drivers, logic devices, memory, time base and clock, data acquisition, MOSFT and special circuits, which are mainly used in automotive electronics, instrumentation, network communications, industrial automation, LED lighting, switching power supplies, smart home appliances, gold card projects, smart transportation and other fields. Huaguan products are positioned as high-end quality, and have been well received by users in recent years. It is currently a high-end quality brand in the industry; HGSEMI&HGC is Huaguan's own brand. The establishment of an independent brand is more conducive to our service to customers, promoting the development of the company, and becoming a leading manufacturer in China's semiconductor industry.
Download Datasheet View All

L7809 Overview

Linear step-down DC/DC converter

Features

Product Name: Linear Step-Down DC/DC Converter


Product model: L7809


Product Description:


The L7800 series of three-terminal positive


regulators is available in TO-220, TO-220FP,


provide local on-card regulation, eliminating the


distribution problems associated with single point


regulation. Each type employs internal current


limiting, thermal shut-down and safe area


protection, making it essentially indestructible. If


adequate heat sinking is provided, they can


deliver over 1A output current. Although designed


primarily as fixed voltage regulators, these


devices can be used with external components to


obtain adjustable voltage and currents




parameter:


VI DC input voltage for VO = 5 to 18 V 35V


for VO = 20, 24 V 40V


IO Output current Internally limited mA


PD Power dissipation Internally limited mW


TSTG Storage temperature range -65 to 150 °C


TOP Operating junction temperature range


for L78M00AC 0 to 125°C


for L78M00AB -40 to 125


Package: TO-220

L7809 Preview

Download Datasheet
oct 2010
L7800
POSITIVE VOLTAGE REGULATORS
s
s
s
s
s
OUTPUT CURRENT TO 1.5A
OUTPUT VOLTAGES OF 5; 6; 8; 9;
10; 12; 15; 18; 24V
THERMAL OVERLOAD PROTECTION
SHORT CIRCUIT PROTECTION
OUTPUT TRANSITION SOA PROTECTION
DESCRIPTION
The L7800 series of three-terminal positive
regulators is available in TO-220, TO-220FP,
packages and several fixed output voltages,
making it useful in a wide range of applications.
These regulators can
provide local on-card regulation, eliminating the
distribution problems associated with single point
regulation. Each type employs internal current
limiting, thermal shut-down and safe area
protection, making it essentially indestructible. If
adequate heat sinking is provided, they can
deliver over 1A output current. Although designed
primarily as fixed voltage regulators, these
devices can be used with external components to
obtain adjustable voltage and currents.
TO-220
TO-220FP
TO-220FM
Figure 1: Schematic Diagram
Rev. 12
www.hgsemi.net
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