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DC1668B-A

Description
eval board buck reg ltm4627
CategoryDevelopment board/suite/development tools   
File Size1MB,6 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance  
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eval board buck reg ltm4627

DEMO MANUAL DC1669A
LTM4627EV:
15A Step-Down µModule
Regulator
DESCRIPTION
Demonstration circuit 1669A features the LTM
®
4627EV
μModule
®
regulator, a high performance high efficiency
step-down regulator. The LTM4627EV has an operating
input voltage range of 4.5V to 20V and is able to provide
an output current of up to 15A. The output voltage is pro-
grammable from 0.6V to 5V and can be remotely sensed
with the internal optional differential remote sensing
amplifier. The LTM4627EV is a complete DC/DC point-of-
load regulator in a thermally enhanced 15mm
×
15mm
×
4.32mm LGA package requiring only a few input and output
capacitors. This regulator is internally compensated and
employs constant frequency current mode architecture,
enabling a fast transient response and stable control
loop over a wide range of output capacitance. It supports
frequency synchronization and Burst Mode
®
operation for
increased light-load efficiency. Output voltage tracking
is also available through the TRACK/SS pin for supply
rail sequencing. The LTM4627 data sheet must be read
in conjunction with this demo manual for working on or
modifying demo circuit 1669.
Design files for this circuit board are available at
http://www.linear.com/demo
L,
LT, LTC, LTM, μModule, Burst Mode, 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
PARAMETER
Input Voltage Range
Output Voltage, V
OUT
Maximum Continuous Output Current
Default Operating Frequency
External Clock Synchronous Frequency Range
Efficiency
V
IN
= 12V, V
OUT
= 1.8V, I
OUT
= 15A
Jumper Selectable
Derating is Necessary for Certain Operating
Conditions. See Data Sheet for Details
CONDITIONS / NOTES
VALUE
4.5V to 20V
1.0V
DC
, 1.2V
DC
, 1.5V
DC
, 2.5V
DC
, 1.8V
DC
, 3.3V
DC
15A DC
500kHz
250kHz to 770kHz
86.6%, See Figure 2
BOARD PHOTO
dc1669af
1

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