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LTC7801 - Synchronous Step-Down DC/DC Controller

General Description

The LTC®7801 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.

Key Features

  • n Wide VIN Range: 4V to 140V (150V Abs Max) n Wide Output Voltage Range: 0.8V to 60V n Adjustable Gate Drive Level: 5V to 10V (OPTI-DRIVE) n Low Operating IQ: 40μA (Shutdown = 10μA) n 100% Duty Cycle Operation n Integrated Bootstrap Diode n Selectable Gate Drive UVLO Thresholds n Onboard LDO or External NMOS LDO for DRVCC n EXTVCC LDO Powers Drivers from VOUT n Phase-Lockable Frequency (75kHz to 850kHz) n Programmable Fixed Frequency (50kHz to 900kHz) n Selectable Continuous, Pulse-Skipping or L.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LTC7801 150V Low IQ, Synchronous Step-Down DC/DC Controller FEATURES n Wide VIN Range: 4V to 140V (150V Abs Max) n Wide Output Voltage Range: 0.