TPS56221DQPT
TEXAS INSTRUMENTS TPS56221DQPT. 芯片, 同步降压转换器, 14V输入, 12V输出, 25A, 1MHZ, PQFN-22, 整卷
The is a high-efficiency and high-current synchronous Buck Converter designed to operate from a supply of 4.5 to 14V. The device can produce an output voltage as low as 0.6V at loads up to 25A. Integrated NexFET™ power MOSFETs provide a small footprint and ease of use. The device implements a voltage-mode control with voltage feed-forward compensation that responds instantly to input voltage change. The device offers design flexibility with a variety of user programmable functions, including soft-start, overcurrent protection OCP levels and loop compensation. OCP levels are programmed by a single external resistor connected from the ILIM pin to the circuit ground. During the initial power-ON sequence, the device enters a calibration cycle, measures the voltage at the ILIM pin and sets an internal OCP voltage level.
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- Incorporates power block technology
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- High-side and low-side MOSFET RDSon sensing
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- Programmable soft-start
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- Voltage mode control with feed-forward
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- Supports pre-biased output
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- Thermal shutdown
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- 600mV Reference voltage with 1% accuracy