1
dc1295bf
DEMO MANUAL DC1295B
DESCRIPTION
LTM4606
EN55022B Compliant 28V
IN
, 6A
Step-Down µModule Regulator
Demonstration circuit DC1295B features the LTM
®
4606EV,
an EN55022 Class B certified, switch mode step-down
power module. The input voltage range is from 4.5V to
28V with a jumper programmable output voltage from
0.6V to 5V. The rated load current is 6A, while derating is
necessary for certain V
IN
, V
OUT
, and thermal conditions.
The LTM4606 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 to another
L, LT, LTC, LTM, μModule, Linear Technology and the Linear logo are registered trademarks of
Linear Technology Corporation. All other trademarks are the property of their respective owners.
PERFORMANCE SUMMARY
BOARD PHOTO
voltage rail. Output voltage margining can also be realized
through jumper position selections. The LTM4606 data
sheet must be read in conjunction with this demo manual
prior to working on or modifying demo circuit DC1295B.
Design files for this circuit board are available at
http://www.linear.com/demo
(T
A
= 25°C)
PARAMETER CONDITION VALUE
Input Voltage Range 5V to 28V
Output Voltage V
OUT
Jumper Selectable (Open for 0.6V) 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V; ±2%
Maximum Continuous Output Current Derating Is Necessary for Certain V
IN
, V
OUT
, and Thermal Conditions 6A
DC
Default Operating Frequency 800kHz
Efficiency V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 6A 89.6%, See Figure 4
