MAX8505 MAXIM [Maxim Integrated Products], MAX8505 Datasheet - Page 6

• Manufacturer Part Number: MAX8505
• Description: 3A, 1MHz, 1% Accurate, Internal Switch Step-Down Regulator with Power-OK
• Manufacturer: MAXIM [Maxim Integrated Products]

3A, 1MHz, 1% Accurate, Internal Switch
Step-Down Regulator with Power-OK
(Typical values are at V
6
100
_______________________________________________________________________________________
90
80
70
60
50
0
C: V
D: V
A: V
B: V
EFFICIENCY vs. OUTPUT CURRENT
OUT
OUT
OUT
OUT
(V
IN
= 3.3V
= 2.5V
= 1.2V
= 0.8V
= V
1
100
530
520
510
500
490
480
470
OUTPUT CURRENT (A)
90
80
70
60
50
D
CC
2.5
0
= 5V, f
FREQUENCY vs. INPUT VOLTAGE AND
A: V
B: V
C: V
(V
A
EFFICIENCY vs. OUTPUT CURRENT
IN
IN
2
OUT
OUT
OUT
3.0
= 2.5V, V
= V
C
SW
= 1.8V
= 1.2V
= 0.8V
1
-40°C
CC
OUTPUT CURRENT (A)
= 1MHz)
INPUT VOLTAGE (V)
TEMPERATURE
3.5
3
= V
CC
B
+25°C
+85°C
4.0
CTL
= 5V, f
2
A
4
= 5V, V
4.5
SW
C
3
= 1MHz)
B
5.0
OUT
100
90
80
70
60
50
= 1.2V, I
5.5
0
4
C: V
D: V
A: V
B: V
EFFICIENCY vs. OUTPUT CURRENT
(V
OUT
OUT
OUT
OUT
IN
= V
= 2.5V
= 1.8V
= 1.2V
= 0.8V
OUT
1
CC
OUTPUT CURRENT (A)
D
= 3.3V, f
= 3A, and T
A
2
Typical Operating Characteristics
SW
= 500kHz)
A
3
= +25°C, unless otherwise noted.)
C
1.05
1.03
1.01
0.99
0.97
0.95
B
6
5
4
3
2
1
0
2.5
4
0
FREQUENCY vs. INPUT VOLTAGE AND
C: V
D: V
A: V
B: V
OUT
OUT
OUT
OUT
3.0
OUTPUT LOAD REGULATION
= 0.8V
= 1.2V
= 1.8V
= 2.5V
100
1
-40°C
90
80
70
60
50
OUTPUT CURRENT (A)
INPUT VOLTAGE (V)
TEMPERATURE
3.5
0
A: V
B: V
C: V
D: V
EFFICIENCY vs. OUTPUT CURRENT
+85°C
+25°C
(V
4.0
OUT
OUT
OUT
OUT
2
IN
= 2.5V
= 1.8V
= 1.2V
= 0.8V
= V
1
D
OUTPUT CURRENT (A)
4.5
V
CC
IN
= V
= 3.3V, f
3
CC
5.0
C
2
= 3.3V
B
A
A
SW
5.5
4
D
B
= 1MHz)
3
C
4