RT8525DGQW

DC/DC控制器, 升压, 升压, 4.5 V至25 V电源, 90％占空比, 200 kHz, WDFN-12

The from is a current mode boost controller in 12 lead WDFN package. This is a wide input operating voltage range step up controller. High voltage output and large output current are feasible by using an external N-MOSFET. It is an optimized design for wide output voltage range applications. It is used in LCD TV, monitor display backlight, LED driver application, high current high output voltage DC/DC converters and high input voltage DC/DC converters.

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VIN range from 4.5V to 25V

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Programmable soft-start time and soft-start current of 5µA

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Programmable boost SW frequency from 50KHz to 600KHz

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Output over voltage protection

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Output under voltage protection

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Quiescent current of 1.3mA, shutdown current is 10 µA

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Switching frequency of 200KHz typ, minimum on-time is 250ns typ, 90% maximum duty

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Thermal shutdown hysteresis of 50°C

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Rise time of 6ns and fall time of 5ns

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Ambient temperature range from -40°C to 85°C