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DX-XL1509-5.0

符合欧盟最新环保标准，已通过ROHS认证及REACH指令，绿色环保无铅产品。

DX-XL1509-5.0线性稳压器产品详情

General Description

The XL1509 is a 150 KHz fixed frequencyPWM buck (step-down) DC/DC converter,capable of driving a 3A load with highefficiency, low ripple and excellent line andload regulation. Requiring a minimumnumber of external components, the regulatoris simple to use and include internalfrequency compensation and afixed-frequency oscillator.The PWM control circuit is able to adjust theduty ratio linearly from 0 to 100%. An enablefunction, an over current protection functionis built inside. When second current limitfunction happens, the operation frequencywill be reduced from 150KHz to 50KHz. Aninternal compensation block is built in tominimize external component count.

Featuresn

Wide 4.5V to 40V Input Voltage Rangen

3.3V,5V,12V, and adjustable versionsn

Output Adjustable from 1.23V to 37Vn

Maximum Duty Cycle 100%n

Minimum Drop Out 1.5Vn

Fixed 150KHz Switching Frequencyn

3A Constant Output Current Capabilityn

Internal Optimize Power Transistorn

High efficiencyn

Excellent line and load regulationn

TTL shutdown capabilityn