DC2721A-A: -0.9 ~ -5.2V @ 2A, 4 ~ 15V in

Summary

Demonstration circuit 2721A-A features the LTM4623 µModule regulator, a tiny high performance high efficiency step-down regulator configured as an inverting buck-boost regulator. The DC2721A-A has an operating input voltage range of 4V to 15V and is able to provide an output current of up to 2A. The output voltage can be programmed between -0.6V and -5.5V. The LTM4623 is a complete DC/DC point of load regulator in a thermally enhanced 6.25mm × 6.25mm × 1.82mm LGA package requiring only a few input and output capacitors.

The LTM4623 data sheet must be read in conjunction with this demo manual for working on or modifying demo circuit 2721A-A.

Specifications

Manufacturer	Analog Devices Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	DC2721A-A-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	2 A
Voltage In	4 ~ 15 V
Efficiency @ Conditions	>86%, 12V in, -5.2V @ 0.8 ~ 2 A >85%, 5V in, -5.2V @ 0.4 ~ 1.3 A >85%, 5V in, -3.3V @ 0.4 ~ 1.4 A >84%, 12V in, -3.3V @ 0.6 ~ 2 A >79%, 5V in, -0.9V @ 0.4 ~ 1.3 A >74%, 12V in, -0.9V @ 0.8 ~ 1.8 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	LTM4623
Date Created By Author	2017-10
Date Added To Library	2018-04