LTC4352IDD#TRPBF

The LTC4352IDD#TRPBF by Linear Technology is a low voltage ideal diode controller designed to create a near-ideal diode using an external N-channel MOSFET. This component serves as a low-loss replacement for high power Schottky diodes and their associated heat sinks, thereby saving power and board space. It is suitable for power ORing and supply holdup applications.

The controller operates with supply voltages ranging from 2.9V to 18V. It features fast turn-on and turn-off times of 0.5μs, which minimizes load voltage droop during supply switch-over and reduces reverse currents if the input supply fails. The device includes undervoltage and overvoltage protection, disabling power passage under such conditions. An open MOSFET detect circuit flags excessive voltage drop across the pass transistor.

Available in 12-pin MSOP and DFN (3mm x 3mm) packages, the LTC4352 is designed for applications such as redundant power supplies, supply holdup, telecom infrastructure, and computer systems and servers. It also includes status and fault outputs, and a reverse current enable input.

Key electrical specifications include operating supply voltages from 2.9V to 18V, with maximum input and output voltages of 24V. The VCC voltage range is -0.3V to 7V. The device also supports CPO, GATE voltages up to 30V and UV, OV, REV voltages up to 24V.