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LTC3649 Datasheet 4a Synchronous Step-down Regulator

Manufacturer: Linear Technology (now Analog Devices)

Overview: LTC3649.

General Description

nn Wide VIN Range: 3.1V to 60V nn Wide VOUT Range: 0V to (VIN – 0.5V) nn Single Resistor VOUT Programming nn Integrated 110mΩ Top N-Channel/50mΩ Bottom N-Channel MOSFETs nn 95% Efficiency with 12VIN and 5VOUT nn Regulated IQ: 440µA, Shutdown IQ: 18µA nn Accurate Current Monitoring (±4%) without Sense Resistor nn Accurate Resistor Programmable Frequency (300kHz to 3MHz) with ±50% Frequency Sync Range nn Accurate Programmable Output Current nn Input Voltage Regulation for MPPT Applications nn ±0.8% Output Voltage Accuracy nn Peak Current Mode Operation nn Programmable Wire Drop Compensation nn Burst Mode® Operation, Forced Continuous Mode nn Internal Compensation and Programmable Soft-Start nn Overtemperature Protection nn Available in Thermally Enhanced 28-Lead (4mm × 5mm) QFN and TSSOP Packages APPLICATIONS nn Industrial Applications nn Automotive Applications The L

Key Features

  • 60V, 4A Synchronous Step-Down Regulator with Rail-to-Rail Programmable Output.

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