LM5140RWGEVM

TEXAS INSTRUMENTS  LM5140RWGEVM  评估电路板, 同步降压控制器

The is an evaluation module for LM5140-Q1 wide Vin dual synchronous buck controller. The LM5140-Q1 is a dual synchronous buck controller intended for high voltage wide VIN step down converter applications. This IC is qualified to AEC-Q100 grade 1 -40°C to 125°C operating junction temperature. This wide Vin, dual 2.2MHz low Iq synchronous buck controller evaluation board provides a fully functional buck power supply, employing peak current mode control. The evaluation board provides two independent outputs 3.3V at 6A and 5V at 5A. The nominal input voltage range is 8V to 18V with an extended operating range of 3.8V to 42V. The LM5140EVM evaluation module helps designers evaluate the operation and performance of LM5140-Q1 synchronous buck controller. The device offers configurability and can be set up to switch at 440KHz or 2.2MHz.

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2.2MHz operation to avoid the automotive AM band

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Full load efficiency of 83.5%

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Shutdown mode current of 9µA

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Low standby current of 35µA one channel enabled, no-load

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VOUT1 fixed 3.3V, 5V or adjustable from 1.5V to 15V

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VOUT2 fixed 5V, 8V and adjustable from 1.5V to 15V

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Outputs can be synchronized to an external clock

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SYNC output, EN1 enables output 1 and EN2 enables output 2

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Diode emulation or forced pulse width modulation FPWM

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Gate drive with slew rate control for reduced EMI