MAX1761 Maxim, MAX1761 Datasheet - Page 6

• Manufacturer Part Number: MAX1761
• Description: Small / Dual / High-Efficiency Buck Controller for Notebooks
• Manufacturer: Maxim

Small, Dual, High-Efficiency
Buck Controller for Notebooks
6
(T
100
100
100
A
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
(2.5V, SKIP MODE, 3.5A COMPONENTS)
1
1
1
V+ = +5V = VL
V+ = +5V
EFFICIENCY vs. LOAD CURRENT
EFFICIENCY vs. LOAD CURRENT
EFFICIENCY vs. LOAD CURRENT
V+ = +5V = VL
(V
V+ = +7V
10
10
10
OUT
(1.8V, PWM MODE)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
V+ = +18V
= 2.5V, SKIP MODE)
V+ = +12V
100
100
100
V+ = +7V
V+ = +12V
V+ = +7V
V+ = +12V
V+ = +18V
1000
1000
1000
V+ = +18V
10,000
10,000
10,000
350
300
250
200
150
100
100
100
50
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
1
1
0
V+ = +5V = VL
EFFICIENCY vs. LOAD CURRENT
FREQUENCY vs. LOAD CURRENT
EFFICIENCY vs. LOAD CURRENT
V+ = +5V = VL
400
V+ = +7V
V+ = +7V
10
10
V
V
(2.5V, PWM MODE)
(3.3V, SKIP MODE)
OUT
OUT
V
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
OUT
= + 1.8V
= + 1.8V
800
SKIP MODE
PWN MODE
V+ = +12V
= + 2.5V
100
100
V
OUT
1200
Typical Operating Characteristics
= + 2.5V
V+ = +18V
V+ = +18V
1000
1000
V+ = +12V
1600
10,000
10,000
2000
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
-0.35
-0.40
-0.45
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
1
1
0
V
V
VL VOLTAGE vs. OUTPUT CURRENT
OUT1
OUT2
V+ = +5V = VL
EFFICIENCY vs. LOAD CURRENT
EFFICIENCY vs. LOAD CURRENT
V+ = +5V = VL
V+ = +7V
5
= 2.5V, I
= 1.8V, I
10
10
(3.3V, PWM MODE)
(1.8V, SKIP MODE)
10
LOAD CURRENT (mA)
LOAD CURRENT (mA)
V+ = +7V
VL CURRENT (mA)
OUT1
OUT2
15
= 2A,
= 2A
V+ = +12V
100
100
20
V+ = +12V
1000
1000
25
V+ = +18V
V+ = +18V
30
10,000
10,000
35