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TPS54521 数据表(PDF) 13 Page - Texas Instruments

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部件名 TPS54521
功能描述  4.5V to 17V Input, 5A Synchronous Step Down SWIFT??Converter
PDF  35 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TPS54521 数据表(HTML) 13 Page - Texas Instruments

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EN
ip
ih
VIN
TPS54521
R 1
R 2
EN
ip
ih
PVIN
TPS54521
R 1
R 2
EN
ip
ih
VIN
TPS54521
R 1
R 2
PVIN
1
æ
ö
-
ç
÷
è
ø
æ
ö
-
+
ç
÷
è
ø
ENFALLING
START
STOP
ENRISING
ENFALLING
p
h
ENRISING
V
V
V
V
R1 =
V
I
I
V
(
)
´
-
+
+
ENFALLING
STOP
ENFALLING
p
h
R1 V
R2 =
V
V
R1 I
I
TPS54521
www.ti.com
SLVS981 – JUNE 2010
Figure 17. Adjustable VIN Under Voltage Lock Out
Figure 18. Adjustable PVIN Under Voltage Lock Out, VIN
≥ 4.5V
Figure 19. Adjustable VIN and PVIN Under Voltage Lock Out
(2)
(3)
Where Ih = 3.4 mA, Ip = 1.15 mA, VENRISING = 1.21 V, VENFALLING = 1.17 V
Adjustable Switching Frequency and Synchronization (RT/CLK)
The RT/CLK pin can be used to set the switching frequency of the device in two modes.
Copyright © 2010, Texas Instruments Incorporated
Submit Documentation Feedback
13
Product Folder Link(s) :TPS54521



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