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MAX797C/D Datenblatt(PDF) 29 Page - Maxim Integrated Products

Teilenummer MAX797C/D
Bauteilbeschribung  Step-Down Controllers with Synchronous Rectifier for CPU Power
PDF  32 Pages
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Hersteller  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX797C/D Datenblatt(HTML) 29 Page - Maxim Integrated Products

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Step-Down Controllers with
Synchronous Rectifier for CPU Power
______________________________________________________________________________________
29
MAX797
CSL
CSH
VL
SYNC
REF
GND
TO
VL
V+
Q1
Q2
FB
1000pF
R1
63.4k
0.1%
R2
200k
0.1%
10k
OUTPUT
3.3V ±1.8%
REMOTE
SENSE
POINT
BST
DH
LX
DL
PGND
SKIP
SS
SHDN
INPUT
4.7
µF
0.33
µF
0.01
µF
RSENSE
VOUT
USE EXTERNAL REFERENCE
(MAX872) FOR BETTER ACCURACY.
ADJUST RANGE = 2.5V TO 4V AS SHOWN.
OMIT R2 FOR VOUT = 2.5V.
= VREF (1 + –––)
R1
R2
L1
MAX495
51k
5%
200k
5%
51k
5%
Figure 18. High-Accuracy Adjustable-Output Application
MAX797
CSL
CSH
VL
1N5819
SYNC
REF
GND
V+
Si9410
Si9410
FB
-5V AT 1.5A
BST
DH
LX
DL
PGND
SKIP
INPUT
4.5V TO 25V
SHDN
0.33
µF
0.1
µF
4.7
µF
22
µF
22
µF
1N4148
L1
0.025
Ω
150
µF 150µF
L1 = DALE LPE6562-A093
Figure 19. Negative-Output (Inverting Topology) Power Supply
____________________________________________Application Circuits (continued)



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