LTC4372IDD#PBF

LTC4372 is a positive high voltage, low quiescent current ideal diode controller that drive an external N-channel MOSFET to replace a Schottky diode. They control the forward voltage drop across the MOSFET to ensure current delivery or current transfer from one path to the other even at light loads. A 5µA operating current achieves high efficiency for intermittent load applications or always-on backup power supplies. If a power source fails or is shorted, a fast turnoff minimizes reverse current transients. The LTC4372 control back-to-back N-channel MOSFETs for inrush current control and load switching. The LTC4372’s SHDN pin keeps the MOSFET off and reduces the quiescent current to 3.5µA. Typical applications include automotive battery protection, redundant power supplies, portable instrumentation, solar powered systems, energy harvesting applications and supply holdup.

• Reduces power dissipation by replacing a power schottky diode
• Wide operating voltage range from 2.5V to 80V
• Reverse supply protection to –28V
• No TVS input clamps required
• High side external N-channel MOSFET drive
• Shutdown input for ON/OFF control
• Fast reverse current turn-off within 1.5µs
• 8-lead (3mm × 3mm) plastic DFN package
• Temperature range from -40°C to 85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party