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LTC3889 Datasheet 60V Dual Output Step-Down Controller

Manufacturer: Analog Devices

General Description

n PMBus/I2C Compliant Serial Interface – Telemetry Read-Back Includes VIN, IIN, VOUT, IOUT, Temperature and Faults – Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, Margining, OV/UV/OC, Frequency, and Control Loop Compensation n Output Error Less Than ±0.5% Over Temperature n Integrated 16-Bit ADC and 12-Bit DAC n Integrated High Side Current Sense Amplifier n Internal EEPROM with ECC and Fault Logging n Integrated N-Channel MOSFET Gate Drivers Power Conversion n Wide VIN Range: 5V to 60V n VOUT0, VOUT1 Range: 1V to 40V n Analog Current Mode Control n Accurate PolyPhase® Current Sharing for Up to 6 Phases (85kHz to 500kHz) n Available in a 52-Lead (7mm × 8mm) QFN Package APPLICATIONS n Telecom, Datacom, and Storage Systems n Industrial and Point of Load Applications The LTC®3889 is a dual PolyPhase DC/DC synchronous step-down switching regulator controller with I2C-based PMBus compliant serial interface.

This controller employs a constant-frequency, current-mode architecture, with high voltage input and output capability along with programmable loop compensation.

The LTC3889 is supported by the LTpowerPlay™ software development tool with graphical user interface (GUI).

Overview

LTC3889.

Key Features

  • 60V Dual Output Step-Down Controller with Digital Power System Management.