DC1244A

LTC3890EGN-1 Demo Board | 4.5V ≤ V_IN ≤ 60V, V_OUT1 = 3.3V @ 5A, V_OUT2 = 8.5V @ 3A

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Overview

Product Details

Product Details

Demonstration circuit 1244 is a Low Quiescent Current, Dual Output Synchronous Buck Converter featuring the LTC3890EGN-1. DC1244 converts a 4.5V to 60V voltage source to 3.3V at 5.0A and 8.5V at 3.0A. When the input voltage is close to or below 9V, the 8.5V output enters dropout mode.The "-1" version has a fixed current limit and current foldback. See data sheet for other differences.

Applicable Parts

LTC3890-1

Documentation & Resources

Demo Board Schematic

DC1244A - Schematic
3/23/2010

PDF

42K

User Guides

DC1244A - Demo Manual
3/23/2010

PDF

732K

Evaluation Design Files

DC1244A - Design Files
3/23/2010

ZIP

1M

Software

LTpowerCAD

LTC3890-1 Project - Low Iq, Dual, 2-Phase Synchronous Step-Down DC/DC Supply with Rsense Current Sensing (14-55V to 3.3V @ 5A & 8.4V @ 3A)

LTC3890-1 Project - Low Iq, Dual, 2-Phase Synchronous Step-Down DC/DC Supply with Inductor DCR Current Sensing (14-55V to 3.3V @ 5A & 8.4V @ 3A)

LTspice

ASC

7.00K

LTC3890-1 Demo Circuit - Dual Output Step-Down (4.5-60V to 8.5V @ 3A & 3.3V @ 5A)

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Pricing displayed is based on 1-piece.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.