DC1041A-B: 4.5V~28Vin, 12A Step Down Regulator

Summary

Demonstration circuit DC1041A-A features the LTM®4601EV, a 12A high efficiency, high density switch mode step-down converter. The input voltage range is from 4.5V to 28V. The output voltage is jumper selectable for popular voltages from 0.6V to 5V. The PLLIN pin supports synchronizing the μModule® regulator to an external clock.

The TRACK/SS pin allows the user to program output ramp-up and ramp-down rates which may coincidentally or ratiometrically track with another supply’s output if desired. Output voltage margining of ±5% from the nominal value is available via the margin control pins MARG0 and MARG1.

Specifications

Manufacturer Analog Devices Inc.
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number DC1041A-B-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Normally In Stock
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 0.6 V
1.2 V
1.5 V
1.8 V
3.3 V
5 V
Current Out 12 A
Voltage In 4.5 ~ 28 V
Efficiency @ Conditions >80%, 20V in, 3.3V @ 1.8 ~ 12 A
>80%, 12V in, 3.3V @ 1.5 ~ 12 A
>75%, 20V in, 1.2V @ 4.5 ~ 12 A
>75%, 12V in, 1.2V @ 1.8 ~ 12 A
Voltage Out Range 0.6 ~ 5 V
Features Current Foldback Protection
Current Limit (Adj. or Fixed)
Current Sharing
Internal Inductor
Over Current Protection
PFM or PWM
Power Good Output
Remote Sensing
Short Circuit Protection
Shutdown, Enable, Standby
Soft Start
Under Voltage Protection, Brown-Out
Voltage Tracking
Switching Frequency 800 kHz
Standby Current [Typical] 22 µA
Quiescent Current [Typical] 42 mA
Component Count + Extras 12 + 45
Internal Switch Yes
Design Author Linear Technology
Application / Target Market Point of Load (PoL)
Servers
Standby Current [Maximum]
Quiescent Current [Maximum]
Main I.C. Base Part LTM4601HV
Date Created By Author - Not Given
Date Added To Library 2012-03

Eval Board

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Support Documents & Media

DC1041A-B - User Guide LTM4601HVEV - Data Sheet

Media

DC1041A_B_SCHEMATIC_FULL.png DC1041A_B_BOARD_FULL.jpg DC1041A_B_CHART_1_FULL.png DC1041A_B_CHART_2_FULL.png