MAX8734 Maxim Integrated Products, MAX8734 Datasheet - Page 8

• Manufacturer Part Number: MAX8734
• Description: (MAX8732 - MAX8734) Main Power-Supply Controllers
• Manufacturer: Maxim Integrated Products

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High-Efficiency, Quad-Output, Main Power-
Supply Controllers for Notebook Computers
8
Idle Mode is a trademark of Maxim Integrated Products, Inc.
(Circuit of Figure 1 and Figure 2, no load on LDO5, LDO3, OUT3, OUT5, and REF, V+ = 12V, ON3 = ON5 = V
R
CS
100
100
190
188
186
184
182
180
178
176
174
172
170
_______________________________________________________________________________________
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
= 7mΩ, V
0
0
0.001
0.001
7
MAX8733
MAX8732
A
A
vs. LOAD CURRENT (MAX8732)
vs. LOAD CURRENT (MAX8733)
B
B
10
STANDBY INPUT CURRENT
3.3V OUTPUT EFFICIENCY
5V OUTPUT EFFICIENCY
0.01
0.01
ILIM
vs. INPUT VOLTAGE
C
D
C
INPUT VOLTAGE (V)
13
LOAD CURRENT (A)
LOAD CURRENT (A)
_ = 0.5V, T
D
F
A: IDLE MODE, V
B: IDLE MODE, V
C: IDLE MODE, V
D: PWM MODE, V
E: PWM MODE, V
F: PWM MODE, V
0.1
0.1
16
B: IDLE MODE, V
C: IDLE MODE, V
D: PWM MODE, V
E: PWM MODE, V
F: PWM MODE, V
A: IDLE MODE, V
F
E
E
19
A
= +25°C, unless otherwise noted.)
1
1
IN
IN
IN
IN
IN
IN
22
= 7V
= 12V
IN
= 24V
IN
= 12V
= 24V
IN
IN
= 7V
IN
IN
= 12V
= 24V
= 12V
= 24V
= 7V
= 7V
10
10
25
100
10.0
90
80
70
60
50
40
30
20
10
9.5
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
40
38
36
34
32
30
28
26
24
22
20
0
0.001
7
7
MAX8732
PWM NO-LOAD BATTERY CURRENT
A
vs. LOAD CURRENT (MAX8733)
B
SHUTDOWN INPUT CURRENT
10
10
0.01
5V OUTPUT EFFICIENCY
C
vs. INPUT VOLTAGE
vs. INPUT VOLTAGE
D
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
LOAD CURRENT (A)
13
13
MAX8733
MAX8732
A: IDLE MODE, V
B: IDLE MODE, V
C: IDLE MODE, V
D: PWM MODE, V
E: PWM MODE, V
F: PWM MODE, V
0.1
MAX8733
16
16
F
Typical Operating Characteristics
E
19
19
1
IN
IN
IN
22
IN
IN
22
IN
= 7V
= 12V
= 24V
= 12V
= 24V
= 7V
25
10
25
250
225
200
175
150
125
100
100
0.40
0.37
0.34
0.31
0.28
0.25
0.22
0.19
0.16
0.13
0.10
75
50
25
90
80
70
60
50
40
30
20
10
0
0
0.001
0.001
IDLE MODE
7
ULTRASONIC MODE
5V OUTPUT SWITCHING FREQUENCY
V
PWM MODE
IN
A
vs. LOAD CURRENT (MAX8732)
= 7V
vs. LOAD CURRENT (MAX8732)
B
10
3.3V OUTPUT EFFICIENCY
0.01
0.01
MAX8732
™
vs. INPUT VOLTAGE
C
LOAD CURRENT (A)
NO-LOAD BATTERY CURRENT
INPUT VOLTAGE (V)
LOAD CURRENT (A)
MAX8733
13
D
F
0.1
PFM MODE
0.1
B: IDLE MODE, V
C: IDLE MODE, V
D: PWM MODE, V
E: PWM MODE, V
F: PWM MODE, V
16
A: IDLE MODE, V
CC
E
19
, SHDN = V+,
1
1
22
IN
IN
IN
IN
IN
IN
= 12V
= 24V
= 12V
= 24V
= 7V
= 7V
10
25
10