MAX1966 Maxim, MAX1966 Datasheet - Page 4

• Manufacturer Part Number: MAX1966
• Description: Low-Cost Voltage-Mode PWM Step-Down Controllers
• Manufacturer: Maxim

Low-Cost Voltage-Mode PWM
Step-Down Controllers
(T
4
A
100
100
100
= +25°C, unless otherwise noted.)
90
80
70
60
50
_______________________________________________________________________________________
90
80
70
60
50
90
80
70
60
50
0.01
EFFICIENCY vs. LOAD CURRENT (1.8V/5A)
0.01
EFFICIENCY vs. LOAD CURRENT (3.3V/3A)
0.01
V
IN
EFFICIENCY vs. LOAD CURRENT
V
= 3.3V
V
IN
IN
= 3.3V
= 5V
LOAD CURRENT (A)
0.1
LOAD CURRENT (A)
LOAD CURRENT (A)
0.1
0.1
(1.2V/3A)
MAX1966
MAX1967
V
IN
V
IN
= 5.0V
V
= 5.0V
IN
1
1
1
= 12V
MAX1967
FIGURE 2
MAX1966
FIGURE 1
MAX1966
FIGURE 1
10
10
10
100
100
100
90
80
70
60
50
90
80
70
60
50
90
80
70
60
50
0.01
EFFICIENCY vs. LOAD CURRENT (1.2V/5A)
0.01
0.01
EFFICIENCY vs. LOAD CURRENT (1.8V/3A)
EFFICIENCY vs. LOAD CURRENT (1.2V/3A)
V
IN
= 3.3V
V
IN
= 5V
V
IN
LOAD CURRENT (A)
0.1
LOAD CURRENT (A)
LOAD CURRENT (A)
0.1
0.1
= 5V
MAX1967
MAX1966
MAX1967
V
Typical Operating Characteristics
IN
= 5.0V
V
1
1
1
IN
V
= 12V
V
IN
MAX1967
FIGURE 2
MAX1967
FIGURE 2
IN
MAX1966
FIGURE 1
V
= 20V
IN
= 12V
= 5V
10
10
10
100
100
100
90
80
70
60
50
90
80
70
60
50
90
80
70
60
50
0.01
0.01
EFFICIENCY vs. LOAD CURRENT (1.8V/3A)
0.01
EFFICIENCY vs. LOAD CURRENT (1.2V/5A)
EFFICIENCY vs. LOAD CURRENT (1.8V/5A)
V
IN
V
V
IN
= 3.3V
IN
V
= 5V
IN
= 12V
= 5V
LOAD CURRENT (A)
LOAD CURRENT (A)
0.1
LOAD CURRENT (A)
0.1
0.1
MAX1967
MAX1966
MAX1967
V
IN
= 5.0V
V
V
IN
IN
1
V
1
1
= 12V
IN
= 3.3V
= 20V
V
MAX1967
FIGURE 2
MAX1967
FIGURE 2
IN
MAX1966
FIGURE 1
= 5.0V
10
10
10