MAX796 Maxim, MAX796 Datasheet - Page 14
MAX796
Manufacturer Part Number
MAX796
Description
Step-Down Controllers with Synchronous Rectifier for CPU Power
Manufacturer
Maxim
Datasheet
1.MAX796.pdf
(32 pages)
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Step-Down Controllers with
Synchronous Rectifier for CPU Power
Figure 3. PWM Controller Detailed Block Diagram
14
(MAX797
–100mV
SECFB
ONLY)
SHDN
SKIP
______________________________________________________________________________________
SS
GND (MAX799)
REF (MAX796)
30mV
REF
4 A
NOTE 1
SLOPE COMP
N
2.5V
MAIN PWM
COMPARATOR
SINGLE-SHOT
24R
1R
RECTIFIER CONTROL
MAX796, MAX799 ONLY
1 s
SYNCHRONOUS
VL
R
S
Q
CURRENT
LIMIT
1X
R
S
Q
NOTE 1: COMPARATOR INPUT POLARITIES
OSC
ARE REVERSED FOR THE MAX799.
THROUGH
CONTROL
SHOOT-
LEVEL
SHIFT
LEVEL
SHIFT
CSH
CSL
FROM
FEEDBACK
DIVIDER
BST
DH
LX
VL
DL
PGND