Analog Devices LTC3897-2

Description

The LT C®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.

Features

• Input Supply Range: 4.5V to 65V (Up to 75V Surge)
• Reverse Input Protection to –40V
• Inrush Current Control, Overcurrent Protection andOutput Disconnect for Boost Converter
• Input Voltage Surge Protection with Adjustable Clamp Voltage
• Onboard Ideal Diode Controller
• Low Quiescent Current: 55μA
• 2-Phase Operation Reduces Required Input and Output Capacitance and Noise
• Output Voltage Up to 60V
• Adjustable Gate Drive Level 5V to 10V (OPTI-DRIVE)for Logic-Level or Standard Threshold FETs
• No External Bootstrap Diodes Required
• 5mm × 9mm QFN-44 Package with High Voltage Pin Spacing

Typical applications

• Military/Avionics
• Telecommunications
• Automotive
• Industrial

More information

• Datasheet