MAX8576 MAXIM [Maxim Integrated Products], MAX8576 Datasheet - Page 5

• Manufacturer Part Number: MAX8576
• Description: 3V to 28V Input, Low-Cost, Hysteretic Synchronous Step-Down Controllers
• Manufacturer: MAXIM [Maxim Integrated Products]

(T
A
1.85
1.84
1.83
1.82
1.81
1.80
1.79
= +25 C, unless otherwise noted.)
100
90
80
70
60
50
40
30
20
10
0
0.1
5
V
OUT
EFFICIENCY vs. LOAD CURRENT
= 3.3V
(CIRCUIT OF FIGURE 2)
(CIRCUIT OF FIGURE 2)
10
LINE REGULATION
LOAD CURRENT (A)
INPUT VOLTAGE (V)
1
V
V
_______________________________________________________________________________________
I
OUT
OUT
OUT
15
= 1.5V
15A LOAD
0A LOAD
3V to 28V Input, Low-Cost, Hysteretic
10
20
V
(CIRCUIT OF FIGURE 2)
V
Synchronous Step-Down Controllers
OUT
OUT
V
IN
LOAD TRANSIENT
= 1.8V
= 2.5V
= 12V
40 s/div
100
25
1.86
1.84
1.82
1.80
1.78
1.76
1.74
1.72
1.70
100
90
80
70
60
50
40
30
20
10
MAX8576-79 toc07
0
0.1
5
V
EFFICIENCY vs. LOAD CURRENT
OUT
12A
= 3.3V
6A
50mV/div
AC-COUPLED
(CIRCUIT OF FIGURE 3)
(CIRCUIT OF FIGURE 3)
10
V
LINE REGULATION
OUT
INPUT VOLTAGE (V)
LOAD CURRENT (A)
5A LOAD
NO LOAD
= 1.5V
15
1
V
OUT
Typical Operating Characteristics
= 2.5V
V
I
OUT
OUT
20
V
OUT
V
IN
= 12V
= 1.8V
(CIRCUIT OF FIGURE 3)
10
25
LOAD TRANSIENT
40 s/div
1.84
1.83
1.82
1.81
1.80
1.79
1.78
1.77
1.76
1.75
600
550
500
450
400
350
300
250
200
0
5
SWITCHING FREQUENCY vs. INPUT
VOLTAGE (CIRCUIT OF FIGURE 3)
MAX8576-79 toc08
(CIRCUIT OF FIGURE 2)
10
LOAD REGULATION
INPUT VOLTAGE (V)
LOAD CURRENT (A)
5
5A
2.5A
50mV/div
AC-COUPLED
15
10
20
15
25
5