Analog Devices LTC3860EUH | Demoboard DC1755A

Description

Demonstration circuit DC1755A provides the user with two high current dual phase synchronous buck converters driven by the LTC3860. These buck converters provide outputs of 1.5V/50A and 1.2V/50A over an input voltagerange of 6V to 14V and a switching frequency of 500kHz. The board can be easily modified for a 4-phase, single VO, 100A supply. The power stage for each phase consists of the tri-state PWM compatible 6mm × 6mm FairchildDrMOS module and a 0.47μH 13.2mm × 12.8mm iron powder type inductor from Würth. A high density, two sided drop-in layout is used. The entire converter, excluding the bulk output and input capacitors, fits within a 2.25” × 1.38” area on the board.

Features

• High efficiency and high current density.
• Remote sensing for each output.
• Optional resistors to tie the two outputs together.
• Connector and header to tie two or more boards together for up to 12-phase operation.
• RUN, PGOOD and TRACK/SS pins for each output.
• CLKIN and CLKOUT pins.
• Onboard bias voltage regulator.
• BNC connectors to monitor each output voltage.

More information

• Datasheet
• IC product information