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LTC3675-1 Datasheet 7-channel Configurable High Power Pmic

Manufacturer: Linear Technology (now Analog Devices)

General Description

The LTC®3675/LTC3675-1 are a digitally programmable high efficiency multioutput power supplies plus dual string LED driver ICs optimized for high power single cell Li-Ion/Polymer applications.

The DC/DCs consist of four synchronous buck converters (1A/1A/500mA/500mA), one synchronous boost dc/dc (1A), and one buck-boost DC/ DC (1A) all powered from a 2.7V to 5.5V input.

The 40V LED driver can regulate up to 25mA of current through two LED strings with up to 10 LEDs each.

Key Features

  • n Four Monolithic Synchronous Buck DC/DCs (1A/1A/500mA/500mA) n Buck DC/DCs Can Be Paralleled to Deliver Up to 2× Current with a Single Inductor n Independent 1A Boost and 1A Buck-Boost DC/DCs n Dual String I2C Controlled 40V LED Driver n I2C Programmable Output Voltage, Operating Mode, and Switch Node Slew Rate for All DC/DCs n I2C Read Back of DC/DC, LED Driver, Fault Status n I2C Slave Address Options: LTC3675 = 0001001X, LTC3675-1 = 0110100X n Maskable Interrupts to Report DC/DC, VIN and Die.

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