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MAX797C/D датащи(PDF) 28 Page - Maxim Integrated Products

номер детали MAX797C/D
подробное описание детали  Step-Down Controllers with Synchronous Rectifier for CPU Power
PDF  32 Pages
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производитель  MAXIM [Maxim Integrated Products]
домашняя страница  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX797C/D датащи(HTML) 28 Page - Maxim Integrated Products

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Step-Down Controllers with
Synchronous Rectifier for CPU Power
28
______________________________________________________________________________________
MAX797
CSL
CSH
SS
VL
SYNC
REF
GND
V+
Q1
FB
191k
49.9k
+12V AT 2A
BST
DH
LX
PGND
SKIP
SHDN
VIN
4.75V TO 6V
C2
150
µF
C3
150
µF
0.33
µF
0.01
0.01
µF
C1
220
µF
D1
4.7
µF
L1
5
µH
L1 = 2x SUMIDA CDRH125-100 IN PARALLEL
D1 = MOTOROLA MBR640
Q1 = MOTOROLA MTD20N03HDL
C1 = SANYO OS-CON 220
µF, 10V
C2, C3 = SANYO OS-CON 150
µF, 16V
Figure 16. 5V-to-12V PWM Boost Converter
MAX797
CSL
CSH
VL
SYNC
REF
GND
V+
Q1
T1
Q2
FB
200k
200k
OUTPUT
+5V AT 500mA
BST
CMPSH-3A
DH
LX
DL
PGND
SKIP
HI EFF
LOW IQ
SHDN
INPUT
3V TO 6.5V
4.7
µF
0.33
µF
33m
220
µF 220µF
100
µF
Q1, Q2 = Si9410DY
T1 = COILTRONIX CTX 10-4
10
µH PRIMARY, 1:1
START-UP SUPPLY VOLTAGE = 3.5V TYP
Figure 17. 90% Efficient, Low-Voltage PWM Flyback Converter (4 Cells to 5V)
____________________________________________Application Circuits (continued)



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