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DC1453A

Description
LTM4619 series DC/DC,步降 2,非隔离 输出评估板
CategoryDevelopment board/suite/development tools    Development board/development kit   
File Size184KB,6 Pages
ManufacturerADI
Websitehttps://www.analog.com
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DC1453A Overview

LTM4619 series DC/DC,步降 2,非隔离 输出评估板

DC1453A Parametric

Parameter NameAttribute value
category
MakerADI
seriesµModule®
Packagebox
The main purposeDC/DC, step down
Output and type2. Non-isolation
Voltage - Output1.8V,3.3V
Current - Output4A
Voltage - input4.5V ~ 28V
Regulator topologystep down
Frequency - Switch500kHz
Board typecompletely filled
What's includedplate
IC/parts usedLTM4619
Basic product numberDC1453
DEMO MANUAL DC1453A
LTM4619EV: 4.5V-28V,
Dual 4A Step-Down µModule
Regulator
DESCRIPTION
Demonstration circuit 1453A features the LTM
®
4619EV, the
high input voltage, high efficiency, high density, dual 4A
step-down power module. Derating is necessary for certain
V
IN
, V
OUT
, and thermal conditions. The two outputs are
interleaved with 180° phase to minimize the input ripple
and reduce the input capacitors. A minimum design only
requires the bulk input and output capacitors and voltage
setting resistors. The LTM4619EV features output voltage
tracking, power good indicator, RUN pin control, clock
synchronization and soft-start programming. Protection
features include foldback current limiting and overvolt-
age protection. Burst Mode
®
operation or pulse skipping
mode can be selected for better light load efficiency. The
LTM4619 data sheet must be read in conjunction with
this demo manual for working on or modifying the demo
circuit 1453A.
Design files for this circuit board are available at
http://www.linear.com/demo
L,
LT, LTC, LTM, Linear Technology, the Linear logo, μModule and Burst Mode 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
OUT1
, V
OUT2
Maximum Continuous Output Current
Default Operating Frequency
Efficiency of Channel 1
Efficiency of Channel 2
CONDITION
(T
A
= 25°C)
VALUE
4.5V to 28V
3.3V ±2%, 1.8V ±2%
Derating Is Necessary for Certain V
IN
, V
OUT
, and Thermal Conditions,
See Datasheet for Details.
JP2 on the 500kHz position.
V
IN
= 12V, V
OUT1
= 3.3V, I
OUT1
= 4A, Switching Frequency = 500kHz.
V
IN
= 12V, V
OUT2
= 1.8V, I
OUT2
= 4A, Switching Frequency = 500kHz.
4A
DC
for V
OUT1
, V
OUT2
500kHz
89.4%, See Figure 3
84.1% See Figure 3
BOARD PHOTO
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