DC1392A: 0.8 ~ 3.3V @ 4A, 2.375 ~ 5.5V in

Summary

The demonstration circuit 1392A features the LTM®4604AEV, the high efficiency, high density switch mode step-down μModule® regulator.

The input voltage range is from 2.375V to 5.5V with a jumper selectable output voltage from 0.8V to 3.3V. The rated load current is 4A, while derating is necessary for certain VIN, VOUT and thermal conditions. By using the TRACK pin, the output can be set to coincidentally or ratiometrically track to another voltage rail.

The LTM4604A data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC1392A.

Specifications

Manufacturer	Analog Devices Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	DC1392A-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	0.8 V 1.2 V 1.5 V 1.8 V 2.5 V 3.3 V
Current Out	4 A
Voltage In	2.375 ~ 5.5 V
Efficiency @ Conditions	>85%, 5V in, 3.3V @ 0.4 ~ 4 A >77%, 3.3V in, 3.3V @ 0.4 ~ 4 A >74%, 5V in, 1.2V @ 0.4 ~ 4 A >74%, 3.3V in, 1.2V @ 0.4 ~ 4 A
Voltage Out Range	- Fixed
Features	Current Foldback Protection Current Limit (Adj. or Fixed) Current Sharing Internal Inductor PFM or PWM Power Good Output Short Circuit Protection Shutdown, Enable, Standby Soft Start Thermal Protection Voltage Tracking
Switching Frequency	1.25 MHz
Standby Current [Typical]	7 µA
Quiescent Current [Typical]	35 µA
Component Count + Extras	8 + 39
Internal Switch	Yes
Design Author	Linear Technology
Application / Target Market	Servers Telecom
Standby Current [Maximum]
Quiescent Current [Maximum]
Main I.C. Base Part	LTM4604A
Date Created By Author	2011-05
Date Added To Library	2012-07