DC2721A-B: -0.9 ~ -5.2V @ 3A, 4 ~ 15V in

Summary

Demonstration circuit 2721A-B features the LTM4625EY µModule® regulator, a tiny high performance high efficiency step-down regulator configured as an inverting buck-boost regulator. DC2721A-B has an operating input voltage range of 4V to 15V and is able to provide an output current of up to 3A. The output voltage can be programmed from -0.6V and -5.5V. The LTM4625EY is a complete DC/DC point of load regulator in a thermally enhanced 6.25mm × 6.25mm × 5.01mm BGA package requiring only a few input and output capacitors.

The LTM4625 data sheet must be read in conjunction with this demo manual for working on or modifying demo circuit 2721A-B.

Specifications

Manufacturer Analog Devices Inc.
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number DC2721A-B-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Normally In Stock
Topology Inverting
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set -0.9V ~ -5.2V
Current Out 3 A
Voltage In 4 ~ 15 V
Efficiency @ Conditions >85%, 12V in, -5.2V @ 1.5 ~ 3 A
>85%, 12V in, -3.3V @ 1.5 ~ 3 A
>84%, 5V in, -5.2V @ 0.6 ~ 2 A
>84%, 5V in, -3.3V @ 0.6 ~ 2.2 A
>80%, 5V in, -0.9V @ 0.5 ~ 1.6 A
>75%, 12V in, -0.9V @ 1 ~ 2.5 A
Voltage Out Range -0.6 ~ -5.5 V
Features Light Load Mode
Over Current Protection
Over Voltage Protection
Power Good Output
Synchronizable
Thermal Protection
Voltage Tracking
Switching Frequency 1 MHz
Standby Current [Typical] 11 µA
Quiescent Current [Typical] 6 mA
Component Count + Extras 35 + 34
Internal Switch Yes
Design Author Linear Technology
Application / Target Market Networking
Point of Load (PoL)
Power: Industrial Power
Servers
Telecom
Test and Measurement Equipment
Standby Current [Maximum] - Not Given
Quiescent Current [Maximum] - Not Given
Main I.C. Base Part LTM4625
Date Created By Author 2017-10
Date Added To Library 2018-04

Eval Board

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Support Documents & Media

DC2721A-B - User Guide LTM4625 - Datasheet

Media

DC2721A-B - Schematic DC2721A-B - Board DC2721A-B - Chart 1 DC2721A-B - Image 1