MAX1652 Maxim, MAX1652 Datasheet - Page 7

• Manufacturer Part Number: MAX1652
• Description: High-Efficiency / PWM / Step-Down DC-DC Controllers in 16-Pin QSOP
• Manufacturer: Maxim

(Circuit of Figure 1, SKIP = GND, T
____________________________________Typical Operating Characteristics (continued)
0.01
100
0.1
10
30
25
20
15
10
90
80
70
60
50
1
5
0
0.001
0
0
V+ = 6V
INPUT VOLTAGE (3.3V/3A CIRCUIT)
LOAD CURRENT (3.3V/5A CIRCUIT)
IDLE-MODE SUPPLY CURRENT vs.
REF LOAD-REGULATION ERROR
50
5
vs. REF LOAD CURRENT
0.01
100 150
V+ = 12V
LOAD CURRENT (µA)
EFFICIENCY vs.
INPUT VOLTAGE (V)
LOAD CURRENT (A)
10
_______________________________________________________________________________________
0.1
200 250 300 350 400
15
V+ = 28V
20
MAX1653
SKIP = 0
NO LOAD
1
MAX1653
f = 300kHz
25
A
= +25°C, unless otherwise noted.)
DC-DC Controllers in 16-Pin QSOP
10
30
High-Efficiency, PWM, Step-Down
100
90
80
70
60
50
30
25
20
15
10
50
45
40
35
30
25
20
15
10
5
0
5
0
0.001
0
0
MAX1653
SKIP = VL
f = 300kHz
NO LOAD
PWM-MODE SUPPLY CURRENT vs.
INPUT VOLTAGE (3.3V/3A CIRCUIT)
V+ = 6V
LOAD CURRENT (5V/3A CIRCUIT)
10
VL LOAD-REGULATION ERROR
5
0.01
V+ = 12V
vs. VL LOAD CURRENT
20
LOAD CURRENT (mA)
EFFICIENCY vs.
LOAD CURRENT (A)
INPUT VOLTAGE (V)
10
30
V+ = 28V
0.1
15
40
50
20
60
1
MAX1653
f = 300kHz
25
70
10
30
80
1500
1200
100
900
600
300
90
80
70
60
50
10
8
6
4
2
0
0
0.001
MAX1652 MAXIMUM SECONDARY OUTPUT
0
0
LOAD CURRENT (1.8V/2.5A CIRCUIT)
MAX1655
f = 300kHz
SHDN = 0V
V
+5V OUTPUT > 4.75V,
CIRCUIT OF FIGURE 9
SEC
CURRENT vs. SUPPLY VOLTAGE
SHUTDOWN SUPPLY CURRENT
+5V LOAD = 0A
5
> 12.75V,
5
0.01
V+ = 6V
vs. INPUT VOLTAGE
SUPPLY VOLTAGE (V)
EFFICIENCY vs.
LOAD CURRENT (A)
INPUT VOLTAGE (V)
10
10
V+ = 12V
0.1
15
15
+5V LOAD = 3A
V+ = 24V
20
20
1
25
25
10
30
30
7