Mu lt i-Ou t p u t , Lo w -No is e P o w e r-S u p p ly
Co n t ro lle rs fo r No t e b o o k Co m p u t e rs
0–MAX1635
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(Circuit of Figure 1, 3A Table 1 components, T = +25°C, unless otherwise noted.)
A
MAX1632/MAX1635
MAXIMUM 15V V OUTPUT
DD
EFFICIENCY vs. 3.3V OUTPUT CURRENT
EFFICIENCY vs. 5V OUTPUT CURRENT
CURRENT vs. SUPPLY VOLTAGE
800
100
100
V+ = 6V
V
DD
> 13V
V+ = 6V
5V REGULATING
90
80
70
60
90
80
70
60
600
400
200
0
5V LOAD = 0A
V+ = 15V
V+ = 15V
5V LOAD = 3A
ON5 = 5V
ON3 = 0V
f = 300kHz
MAX1631/MAX1634
ON3 = ON5 = 5V
f = 300kHz
MAX1631/MAX1634
50
50
0
5
10
15
20
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
SUPPLY VOLTAGE (V)
3.3V OUTPUT CURRENT (A)
5V OUTPUT CURRENT (A)
MAX1630/MAX1633
MAXIMUM 15V V OUTPUT
DD
CURRENT vs. SUPPLY VOLTAGE
PWM MODE INPUT CURRENT
vs. INPUT VOLTAGE
IDLE MODE INPUT CURRENT
vs. INPUT VOLTAGE
30
10
1
500
400
300
200
100
ON3 = ON5 = 5V
SKIP = 0V
NO LOAD
ON3 = ON5 = 5V
SKIP = VL
NO LOAD
V
> 13V
DD
3.3V REGULATING
25
20
15
10
3.3V LOAD = 0A
0.1
0.01
3.3V LOAD = 3A
5
0
0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
0
5
10
SUPPLY VOLTAGE (V)
15
20
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
SHUTDOWN INPUT CURRENT
vs. INPUT VOLTAGE
STANDBY INPUT CURRENT
vs. INPUT VOLTAGE
MINIMUM V TO V DIFFERENTIAL
IN
OUT
vs. 5V OUTPUT CURRENT
10
8
10,000
1000
100
10
1000
ON3 = ON5 = 0V
NO LOAD
SHDN = 0V
100
10
6
4
2
5V, 3A CIRCUIT
> 4.8V
V
OUT
f = 300kHz
0
1
1
0
5
10
15
20
25
30
0
5
10
15
20
25
30
0.001
0.01
0.1
1
10
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
5V OUTPUT CURRENT (A)
_______________________________________________________________________________________
5
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
