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LTC3897-2 Datasheet Synchronous Boost Controller

Manufacturer: Analog Devices

Overview: LTC3897-2.

General Description

n Input Supply Range: 4.5V to 65V (Up to 75V Surge) n Reverse Input Protection to –40V n Inrush Current Control, Overcurrent Protection and Output Disconnect for Boost Converter n Input Voltage Surge Protection with Adjustable Clamp Voltage n Onboard Ideal Diode Controller n Low Quiescent Current: 55µA n 2-Phase Operation Reduces Required Input and Output Capacitance and Noise n Output Voltage Up to 60V n Adjustable Gate Drive Level 5V to 10V (OPTI-DRIVE) for Logic-Level or Standard Threshold FETs n No External Bootstrap Diodes Required n 5mm × 9mm QFN-44 Package with High Voltage Pin Spacing APPLICATIONS n Industrial n Automotive n Military/Avionics n Telemunications The LTC®3897-2 is a synchronous boost DC/DC controller with surge stopper and ideal diode controller.

The boost controller drives two N-channel power MOSFET stages out-of-phase to reduce input and output capacitor requirements, allowing the use of smaller inductors than the single-phase equivalent.

Synchronous rectification reduces power loss and eases thermal requirements.

Key Features

  • PolyPhase® Synchronous Boost Controller with Input/Output Protection.

LTC3897-2 Distributor