MAX796 데이터 시트보기 (PDF) - Maxim Integrated
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MAX796 Datasheet PDF : 32 Pages
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Step-Down Controllers with
Synchronous Rectifier for CPU Power
_____________________________________Typical Operating Circuits (continued)
INPUT 6V TO 30V
V+
SECFB
SHDN
FB
VL
MAX799
DH
BST
LX
DL
SS
PGND
REF
CSH
GND
CSL
SYNC
FROM
REF
–5V
OUTPUT
+5V
OUTPUT
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
EFFICIENCY
vs. LOAD CURRENT, 5V/3A CIRCUIT
100
VIN = 6V
90
VIN = 30V
80
70
60
50
0.001
STANDARD MAX797 5V/3A
CIRCUIT, FIGURE 1
f = 300kHz
0.01
0.1
1
10
LOAD CURRENT (A)
EFFICIENCY
vs. LOAD CURRENT, 3.3V/3A CIRCUIT
100
VIN = 5V
90
VIN = 12V
80
VIN = 30V
70
60
50
0.001
STANDARD MAX797 3.3V/3A
CIRCUIT, FIGURE 1
f = 300kHz
0.01
0.1
1
10
LOAD CURRENT (A)
EFFICIENCY
vs. LOAD CURRENT, 3.3V/10A CIRCUIT
100
SKIP = LOW
90
80
SKIP = HIGH
70
60
50
40
0.1
STANDARD MAX797 3.3V/10A
CIRCUIT, FIGURE 1
f = 300kHz
VIN = 5V
1
10
LOAD CURRENT (A)
6 _______________________________________________________________________________________
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