DC1414A: 1.2 ~ 5V @ 12A, 5 ~ 20V in, Inductor On-Chip

Summary

Demonstration circuit 1414 features the LTM®4601AEV, a high efficiency, high density switch mode step-down power module. The DC1414A accepts an input voltage from 5V to 20V to deliver a jumper selectable output voltage from 1.2V to 5V at up to 12A. As shown in the data sheet, derating is necessary for certain VIN, VOUT, and thermal conditions.

The LTM4601A allows the user to program output ramp-up and ramp-down through the TRACK/SS pin. The output can be set to coincidentally or ratiometrically track with another voltage rail. This board also supports demonstration of the output voltage margining function by ±5% from nominal which is determined by the state of the MARGN0 and MARGN1 pins. Refer to the LTM4601A data-sheet for additional information.

Specifications

Manufacturer Analog Devices Inc.
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Board not Stocked
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
5 V
Current Out 12 A
Voltage In 5 ~ 20 V
Efficiency @ Conditions >91%, 12V in, 5V @ 3 ~ 12 A
>85%, 12V in, 2.5V @ 3 ~ 12 A
Voltage Out Range 0.6 ~ 5 V
Features Current Foldback Protection
Internal Inductor
Over Current Protection
Over Voltage Protection
Power Good Output
Remote Sensing
Shutdown, Enable, Standby
Soft Start
Synchronizable
Switching Frequency 850 kHz
Standby Current [Typical]
Quiescent Current [Typical] 3.8 mA
Component Count + Extras 14 + 48
Internal Switch Yes
Design Author Linear Technology
Application / Target Market Computers
Telecom
Standby Current [Maximum]
Quiescent Current [Maximum] 38 mA
Main I.C. Base Part LTM4601A
Date Created By Author
Date Added To Library 2011-03

Support Documents & Media

DC1414A - User Guide LTM4601A - Datasheet

Media

DC1414A_Schematic_full.JPG DC1414A_Board_Full.JPG DC1414A_Efficiency_Chart_full.JPG