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LTC3862 Datasheet Step-up DC/dc Controller

Manufacturer: Linear Technology (now Analog Devices)

General Description

The LTC®3862 is a two phase constant frequency, current mode boost and SEPIC controller that drives N-channel power MOSFETs.

Two phase operation reduces system filtering capacitance and inductance requirements.

The operating frequency can be set with an external resistor over a 75kHz to 500kHz range and can be synchronized to an external clock using the internal PLL.

Key Features

  • n Wide VIN Range: 4V to 36V Operation n 2-Phase Operation Reduces Input and Output Capacitance n Fixed Frequency, Peak Current Mode Control n 5V Gate Drive for Logic-Level MOSFETs n Adjustable Slope Compensation Gain n Adjustable Max Duty Cycle (Up to 96%) n Adjustable Leading Edge Blanking n ±1% Internal Voltage Reference n Programmable Operating Frequency with One External Resistor (75kHz to 500kHz) n Phase-Lockable Fixed Frequency 50kHz to 650kHz n SYNC Input and CLKOUT for 2-, 3-, 4-, 6- or.

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