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LTC3895 Datasheet Step-down DC/dc Controller

Manufacturer: Linear Technology (now Analog Devices)

Overview: LTC3895 150V Low IQ, Synchronous Step-Down DC/DC Controller.

General Description

The LTC®3895 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage that can operate from input voltages up to 140V.

A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz.

The gate drive voltage can be programmed from 5V to 10V to allow the use of logic or standard-level FETs to maximize efficiency.

Key Features

  • nn Wide VIN Range: 4V to 140V (150V Abs Max) nn Wide Output Voltage Range: 0.8V to 60V nn Adjustable Gate Drive Level: 5V to 10V (OPTI-DRIVE) nn Low Operating IQ: 40μA (Shutdown = 10μA) nn 100% Duty Cycle Operation nn No External Bootstrap Diode Required nn Selectable Gate Drive UVLO Thresholds nn Onboard LDO or External NMOS LDO for DRVCC nn EXTVCC LDO Powers Drivers from VOUT nn Phase-Lockable Frequency (75kHz to 850kHz) nn Programmable Fixed Frequency (50kHz to 900kHz) nn Selectable Continuou.

LTC3895 Distributor

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