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LTM4623 数据表(PDF) 21 Page - Linear Technology

部件名 LTM4623
功能描述  Ultrathin 20VIN, 3A Step-Down DC/DC 關Module Regulator
PDF  28 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTM4623 数据表(HTML) 21 Page - Linear Technology

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LTM4623
21
4623fc
For more information www.linear.com/LTM4623
applicaTions inForMaTion
Figure 23. Recommended PCB Layout
Figure 24. 4VIN to 20VIN, 1.5V Output at 3A Design
Figure 25. 2.375VIN to 4VIN, 1V Output at 3A Design
with 800kHz Reduced Frequency
VIN
COUT
GND
VOUT
4623 F19
GND
CIN
VIN
SVIN
RUN
INTVCC
MODE
PHMODE
TRACK/SS
PGOOD
LTM4623
CLKIN
FREQ
CLKOUT
VOUT
10µF
25V
47µF
4V
VIN
4V TO 20V
VOUT
1.5V
3A
FB
COMP
GND
40.2k
SGND
4623 F20
0.1µF
VIN
SVIN
RUN
INTVCC
MODE
PHMODE
TRACK/SS
PGOOD
LTM4623
CLKIN CLKOUT
FREQ
5V
VOUT
10µF
6.3V
1.31M
1µF
6.3V
47µF
4V
VIN
2.375V TO 4V
VOUT
1V
3A
FB
COMP
GND
90.9k
SGND
4623 F21
0.1µF
• Use a separated SGND ground copper area for com-
ponents connected to signal pins. Connect the SGND
to GND underneath the unit.
• Bring out test points on the signal pins for monitoring.
Figure23givesagoodexampleoftherecommendedlayout.



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