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Adafruit LM66200 Ideal Dual Diodes Breakout

$ 3.50

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Description

Most projects these days have multiple power supplies: say a battery or DC wall plug or USB for multiple powering options. Juggling these to have seamless hot-swap while avoiding back-powering is always a bit of a challenge: you want to keep things small, cheap, low power and of course reduce as much voltage drop as possible. The Adafruit LM66200 Dual Ideal Diode breakout is a cute solution to dual supplies: it has back-voltage protection, and two 'ideal' diodes with RdsOn of 40 milliohms, support for 2.5A continuous draw and a separate enable input and status output. Sure you could DIY the circuitry with multiple transistors, but this is compact and easy to use! Simply connect the two 2~5V power supplies to Vin1 and Vin2, the higher of the two will appear on Vout. Disable the output completely by pulling the
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Most projects these days have multiple power supplies: say a battery or DC wall plug or USB for multiple powering options. Juggling these to have seamless hot-swap while avoiding back-powering is always a bit of a challenge: you want to keep things small, cheap, low power and of course reduce as much voltage drop as possible. The Adafruit LM66200 Dual Ideal Diode breakout is a cute solution to dual supplies: it has back-voltage protection, and two 'ideal' diodes with RdsOn of 40 milliohms, support for 2.5A continuous draw and a separate enable input and status output. Sure you could DIY the circuitry with multiple transistors, but this is compact and easy to use! Simply connect the two 2~5V power supplies to Vin1 and Vin2, the higher of the two will appear on Vout. Disable the output completely by pulling the On/Enable pin high. Check the Status pin, if desired, to see whether Vin1 or Vin2 is the selected supply. To make it breadboard-friendly, we've placed it on a small PCB with 6 x 0.1 breakout pads. The chip and a 1 Megaohm enable-pulldown are soldered on top. We include a bit of header, some light soldering is required to attach the header - or use free wiring if you want to insert it directly into a circuit. Specifications LM66200 Product information page Input voltage range: 1.6 V to 5.5 V Maximum continuous current: 2.5 A On-resistance: 40 mΩ (typical) Standby current: 50 nA (typical) Quiescent current: 1.32 μA (typical) Automatic diode switchover Controlled output slew rate: 1.3 ms (typical) at 3.3 V Reverse current blocking when VOUT > VINx Thermal shutdown Dimensions: 16.5mm x 10.0mm x 2.2mm Weight: 0.5g

Most projects these days have multiple power supplies: say a battery or DC wall plug or USB for multiple powering options. Juggling these to have

Adafruit LM66200 Ideal Dual Diodes Breakout