Datasheet > PJ1509M

PJ1509M

更新时间： 2024-09-18 00:04:27

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
10页	995K
描述
2A输出降压稳压IC,输入电压最大可至45V, 耐压达45V,输出电压可调, 可调电压范围为1.23V-34V,工作频率150KHz,效率最大达90%,带限流/过热/短路保护功能.

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PJ1509M 数据手册

Datasheet

PJ1509

2A 150KHZ PWM Buck DC/DC Converter

General Description

Features

The PJ1509 is a of easy to use adjustable

step-down (buck) switch-mode voltage regulator.

The device is available in an adjustable output

version. It is capable of driving a 2A load with

excellent line and load regulation.

• Adjustable output versions

• Output adjustable from 1.23v to 34V

• Fixed 150KHz frequency internal oscillator

• Guaranteed 2A output load current

• Input voltage range up to 45V

• Low power standby mode, I_Qtypically 50 µA

• TTL shutdown capability

Requiring

minimum number of external

components, these regulators are simple to use

and include internal frequency compensation, and

a fixed-frequency oscillator.

• Excellent line and load regulation

• High efficiency

• Thermal shutdown and current limit protection

• Available in advantaged SOP8 package

The output voltage is guaranteed to ±3%

tolerance under specified input voltage and

output load conditions. The oscillator frequency is

guaranteed to ± 15%. External shutdown is

included, featuring typically 50 µA standby current.

Self protection features include a two stage

frequency reducing current limit for the output

switch and an over temperature shutdown for

complete protection under fault conditions.

Applications

• Simple High-efficiency step-down regulator

• On-card switching regulators

• Positive to negative converter

• LCD monitor and LCD TV

• DVD recorder and PDP TV

• Battery charger

• Step-down to 3.3V for microprocessors

The PJ1509 is available in SOP8 package.

Package Types

SOP8

Figure 1. Package Types of PJ1509

October, 20, 2005.

12 3 4 5 6 7...10

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