Texas Instruments' TPS40100 integrated circuit is a feature-rich, high-efficiency synchronous buck controller for non-isolated, point-of-load applications. Features include built-in output voltage margining, advanced sequencing control and tracking input.
This mid voltage, wide-input (between 4,5 V and 18 V), synchronous step-down controller offers programmable closed loop soft-start, programmable UVLO with programmable hysteresis, programmable inductor-sensed current limit and can be synchronised to other timebases.
The TPS40100 incorporates MOSFET gate drivers for external N-channel high-side and synchronous rectifier MOSFET. Gate drive logic incorporates adaptive anti-cross conduction circuitry for improved efficiency, reducing both cross conduction and diode conduction in the rectifier MOSFET. The externally programmable current limit provides a hiccup overcurrent recovery characteristic.
Output voltage range is from 0,7 V to 5,5 V and current feedback control is adjustable from 100 kHz to 600 kHz. It comes in a 24 pin QFN package.
For more information contact Rodney Farrow, Arrow Altech Distribution, +27 (0)11 923 9600, [email protected]
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