Ideal diodes reduce power loss

Nexperia’s NID5100 and NID5100-Q100 ideal diodes provide a lower forward voltage drop than conventional diodes in power OR-ing applications. The NID5100 targets standard industrial and consumer applications, while the NID5100-Q100 is qualified for automotive use.

These PMOS-based devices integrate a MOSFET that regulates the anode-to-cathode voltage to be 8 to 10 times lower than that of similarly rated Schottky diodes. Additionally, the ideal diodes reduce reverse DC leakage current by up to 100 times compared to typical Schottky diodes.

In addition to automatic transitioning between OR-ed power supplies, Nexperia’s ideal diodes provide forward voltage regulation with a typical value of 31 mV and can handle forward currents up to 1.5 A. They operate over a voltage range of 1.2 V to 5.5 V with low current consumption. At 3.3 V_IN, shutdown current is just 170 nA, and quiescent current is 240 nA. The devices also feature reverse voltage protection with an absolute maximum rating of -6 V.

The NID5100 and NID5100-Q100 are supplied in small TSSP6/SOT363-2 leaded plastic packages with dimensions of 2.1×1.25×0.95 mm. They can be purchased through Nexperia’s distributor network.

NID5100 product page

Nexperia

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