The HM1507 is a 150 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A load with high efficiency, low ripple and excellent line and load regulation. Requiring a m HM1507

Features General Description
Wide 4.5V to 40V Input Voltage Range3.3V,5V,12V, and adjustable versionsOutput Adjustable from 1.23V to 37V
Maximum Duty Cycle 100%
Minimum Drop Out 1.5VFixed 150KHz Switching Frequency3A Constant Output Current CapabilityInternal Optimize Power TransistorHigh efficiency
Excellent line and load regulation
TTL shutdown capability
ON/OFF pin with hysteresis functionBuilt in thermal shutdown functionBuilt in current limit functionBuilt in second current limit functionAvailable in TO-252 packageThe HM1507 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 internal frequencycompensation and a fixed- 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 to
Applicationsminimize external component count.LCD Monitor and LCD TVDigital Photo FrameSet-up BoxADSL ModemTelecom / Networking Equipment
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