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XL1509-ADJE1

更新时间： 2022-02-26 11:37:04

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
13页	276K
描述
2A 150KHz 40V Buck DC to DC Converter

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Datasheet

XL1509

2A 150KHz 40V Buck DC to DC Converter

Features

General Description

n Wide 4.5V to 40V Input Voltage Range

n 3.3V,5V,12V, and adjustable versions

n Output Adjustable from 1.23V to 37V

The XL1509 is a 150 KHz fixed frequency

PWM buck (step-down) DC/DC converter,

capable of driving a 2A load with high

efficiency, low ripple and excellent line and

n

n

Maximum Duty Cycle 100%

Minimum Drop Out 1.5V

load regulation. Requiring

a

minimum

n Fixed 150KHz Switching Frequency

n 2A Constant Output Current Capability

n Internal Optimize Power Transistor

number of external components, the regulator

is simple to use and include internal

frequency

compensation

and

a

n

n

n

n

n

High efficiency

Excellent line and load regulation

TTL shutdown capability

fixed-frequency oscillator.

The PWM control circuit is able to adjust the

duty ratio linearly from 0 to 100%. An enable

function, an over current protection function

is built inside. When second current limit

function happens, the operation frequency

will be reduced from 150KHz to 50KHz. An

internal compensation block is built in to

minimize external component count.

ON/OFF pin with hysteresis function

Built in thermal shutdown function

n

n

n

Built in current limit function

Built in second current limit function

Available in SOIC8 package

Applications

n LCD Monitor and LCD TV

n Digital Photo Frame

n Set-up Box

n ADSL Modem

n Telecom / Networking Equipment

Figure1. Package Type of XL1509

Rev 2.0

www.xlsemi.com

1

12 3 4 5 6 7...13

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