MAX1537 Maxim Integrated Products, MAX1537 Datasheet - Page 9

• Manufacturer Part Number: MAX1537
• Description: Main Power-Supply Controllers
• Manufacturer: Maxim Integrated Products

(MAX1537 circuit of Figure 1, V
High-Efficiency, 5x Output, Main Power-Supply
100
100
32
28
24
20
16
12
90
80
70
60
50
90
80
70
60
50
8
4
0
0.01
0.01
0
PWM5 EFFICIENCY vs. LOAD CURRENT
PWM3 EFFICIENCY vs. LOAD CURRENT
vs. INPUT VOLTAGE (FULLY ENABLED)
SKIP = GND
SKIP = V
NO-LOAD SUPPLY CURRENT
5
CC
INPUT VOLTAGE (V)
10
0.1
LOAD CURRENT (A)
0.1
LOAD CURRENT (A)
(V
(V
OUT5
OUT3
_______________________________________________________________________________________
0.22mA (V
15
= 5.0V)
= 3.3V)
V
V
IN
V
V
IN
IN
SKIP = GND
SKIP = V
SKIP = GND
SKIP = V
IN
V
= 12V
= 20V
IN
= 12V
V
= 20V
ON3 = ON5 = V
IN
20
IN
= 7V
1
1
= 12V)
IN
= 5V
Controllers for Notebook Computers
CC
CC
= 12V, LDO5 = V
25
CC
30
10
10
5.12
5.08
5.04
5.00
4.96
4.92
4.88
3.39
3.36
3.33
3.30
3.27
3.24
3.21
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
CC
0
0
0
0
vs. INPUT VOLTAGE (STANDBY MODE)
= 5V, SKIP = GND, FSEL = REF, T
3.3V OUTPUT VOLTAGE (OUT3)
5V OUTPUT VOLTAGE (OUT5)
NO-LOAD SUPPLY CURRENT
1
1
5
vs. LOAD CURRENT
vs. LOAD CURRENT
INPUT VOLTAGE (V)
LOAD CURRENT (A)
LOAD CURRENT (A)
10
2
2
15
3
3
Typical Operating Characteristics
SKIP = GND
SKIP = V
SKIP = GND
SKIP = V
ON3 = ON5 = GND
20
4
4
CC
CC
25
5
5
30
6
6
A
= +25°C, unless otherwise noted.)
5.12
5.08
5.04
5.00
4.96
4.92
4.88
3.39
3.36
3.33
3.30
3.27
3.24
3.21
10
8
6
4
2
0
5
5
0
NO LOAD
NO LOAD
3.3V OUTPUT VOLTAGE (OUT3)
SHUTDOWN SUPPLY CURRENT
5V OUTPUT VOLTAGE (OUT5)
5
10
10
vs. INPUT VOLTAGE
vs. INPUT VOLTAGE
vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
10
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15
15
15
SKIP = GND
SKIP = V
SKIP = GND
SKIP = V
20
20
20
SHDN = GND
CC
CC
25
25
25
30
30
30
9