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DC1822A - LTC3861EUHE with DrMOS Demo Board | 7V ≤ VIN ≤ 14V; VOUT1 = 1.5V @ 25A, VOUT2 = 1.2V @ 25A

Demonstration circuit 1822A is a dual output synchronous buck converter featuring the LTC®3861EUHE. The board provides two outputs of 1.5V/25A and 1.2V/25A from an input voltage of 7V to 14V at a switching frequency of 500kHz. The power stage consists of a 6mm × 6mm DrMOS and a 13mm × 13mm iron powder type inductor. An on-board 5V LT®3470 buck regulator provides the 5V bias for the LTC3861 and the DrMOS.

Demo Board Design File

• DC1822A - Design Files

Demo Board Manual

• DC1822A - Demo Manual

Demo Board Schematic

• DC1822A - Schematic

LTspice

• LTC3861 Demo Circuit - High Current, Dual Output Synchronous Buck Converter with Inductor DCR Current Sensing (4-14V to 1.2V @ 25A & 1.8V @ 25A)

LTpowerCAD

• LTC3861 Project - Dual, 2-Phase Step-Down Voltage Mode Supply (6-14V to 1.5V @ 50A)
• LTC3861 Project - Dual, 2-Phase Step-Down Voltage Mode Supply (7-14V to 1.5V & 1.2V @ 25A)

Products

• DC1822A - Design Files
• LTC3861 Project - Dual, 2-Phase Step-Down Voltage Mode Supply (6-14V to 1.5V @ 50A)
• LTC3861 Project - Dual, 2-Phase Step-Down Voltage Mode Supply (7-14V to 1.5V & 1.2V @ 25A)
• LTC3861 - Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Accurate Current Sharing