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LM25085AMY/NOPB 数据表(PDF) 9 Page - Texas Instruments

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部件名 LM25085AMY/NOPB
功能描述  42V Constant On-Time PFET Buck Switching Controller
PDF  31 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM25085AMY/NOPB 数据表(HTML) 9 Page - Texas Instruments

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 9 / 31 page
background image
-
+
Q
R
+
S
Negative Bias
Regulator
Thermal
Shutdown
ON Time
One-Shot
Soft-Start
Gate Driver
Control Logic
VCC
UVLO
Gate
Driver
REGULATION
COMPARATOR
OVER-VOLTAGE
COMPARATOR
CURRENT
LIMIT
COMPARATOR
OFF Time
One-Shot
FB
LM25085A
PGATE
ISEN
GND
VCC
ADJ
4.5V to 42V
Input
VIN
GND
SHUTDOWN
RT
CVCC
CADJ
RADJ
Q1
D1
L1
0.9V
RFB1
RFB2
CBYP
RSEN
VCC
VOUT
COUT
R3 C1
C2
1.25V
+
-
+
-
7.7V
40 PA
+
-
0.73V
+
-
RT
CIN
VIN
VIN
VIN
LM25085A
www.ti.com
SNVS601B – JANUARY 2009 – REVISED MARCH 2013
Block Diagram
Sense resistor method shown for current limit detection.
Minimum output ripple configuration shown.
Copyright © 2009–2013, Texas Instruments Incorporated
Submit Documentation Feedback
9
Product Folder Links: LM25085A



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