MAX8734 Maxim Integrated Products, MAX8734 Datasheet - Page 11

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

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5V
4A
1A
5V
0
(Circuit of Figure 1 and Figure 2, no load on LDO5, LDO3, OUT3, OUT5, and REF, V+ = 12V, ON3 = ON5 = V
R
MAX8733/MAX8734 (TON = GND)
CS
LOAD TRANSIENT RESPONSE
= 7mΩ, V
5V PWM-MODE
Supply Controllers for Notebook Computers
10µs/div
ILIM
100
100
High-Efficiency, Quad-Output, Main Power-
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0.001
0.001
_ = 0.5V, T
______________________________________________________________________________________
vs. LOAD CURRENT (TON = V
vs. LOAD CURRENT (TON = V
3.3V ULTRASONIC EFFICIENCY
V
MAX8732/3/4 toc28
5V ULTRASONIC EFFICIENCY
IN
V
IN
= 7V
0.01
0.01
= 12V
LOAD CURRENT (A)
LOAD CURRENT (A)
A
= +25°C, unless otherwise noted.)
V
IN
V
AC-
COUPLED
100mV/div
INDUCTOR
CURRENT
2A/div
DL5
5V/div
OUT
= 24V
V
V
0.1
0.1
IN
IN
,
= 12V
= 24V
3.3V
4A
1A
5V
1
0
1
CC
CC
MAX8732/MAX8734 (TON = V
)
)
LOAD TRANSIENT RESPONSE
Typical Operating Characteristics (continued)
10
10
3.3V PWM-MODE
20µs/div
MAX8732/3/4 toc29
CC
)
V
AC-
COUPLED
100mV/div
INDUCTOR
CURRENT
2A/div
DL3
5V/div
OUT
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
,
0.001
0.001
vs. LOAD CURRENT (TON = GND)
vs. LOAD CURRENT (TON = GND)
3.3V ULTRASONIC EFFICIENCY
3.3V
5V ULTRASONIC EFFICIENCY
4A
1A
5V
0
0.01
0.01
LOAD CURRENT (A)
LOAD CURRENT (A)
MAX8733/MAX8734 (TON = GND)
V
V
IN
LOAD TRANSIENT RESPONSE
IN
= 12V
= 7V
V
0.1
IN
0.1
3.3V PWM-MODE
= 24V
V
IN
V
10µs/div
IN
= 24V
= 12V
1
1
CC
10
10
MAX8732/3/4 toc30
, SHDN = V+,
V
AC-
COUPLED
100mV/div
INDUCTOR
CURRENT
2A/div
DL3
5V/div
OUT
,
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