Analog Devices LTC3855EFE | Demoboard DC1617A-B

Description

Demonstration circuit DC1617A is a dual output synchronous buck converter featuring the LTC®3855EFE in a high density, two sided drop-in layout with power components on the top and the control circuit on the bottom. The package style for the LTC3855EFE is a 38-lead TSSOP.The board comes in two assembly types. The –A assembly provides 2.5V/15A and 1.8V/15A from a 4.5V to 26V input.DCR inductor sensing is used to provide the highest efficiency.The current limit is NTC compensated to provide the minimal amount of variation over temperature. The –B assembly is a high power, 12V/6A and 5V/10A converter with a 13V to 36V input. A sense resistor is used to providea precise current limit.

Features

• Remote sensing for VOUT2 on the –A assembly. On the
• –B assembly, the diffamp is bypassed since VOUT2 is >3.3V.
• Optional resistors for single output dual phase operation.
• PLLIN pin for synchronization to an external clock which can be used in conjunction with PHASMD pin and CLKOUT pin for up to 12-phase operation.
• Selectable light load operating modes of pulse skip,Burst Mode® operation or FCM.
• TRACK/SS pins for external rail tracking.
• RUN pins and PGOOD pins for each phase.

More information

• Datasheet
• IC product information