Datasheet

8 Maxim Integrated
High-Efficiency, 4A, Step-Down DC-DC
Regulators with Internal Power Switches
MAX15066/MAX15166
Typical Operating Characteristics (continued)
(V
IN
= 12V, V
OUT
= 1.8V, C
VDD
= 1FF, C
IN
= 22FF, C
OUT
= 47FF, T
A
= +25NC (Figure 1, MAX15066), unless otherwise noted.)
JUNCTION TEMPERATURE vs. AMBIENT TEMPERATURE
(V
IN
= 5V, L = 2.2µH, LOAD CURRENT = 4A)
(MAX15066)
MAX15066 toc28
AMBIENT TEMPERATURE (°C)
JUNCTION TEMPERATURE (°C)
756535 45 55
50
60
70
80
90
100
110
120
40
25 85
V
OUT
= 3.3V
V
OUT
= 1.8V
V
OUT
= 1.2V
V
OUT
= 2.5V
JUNCTION TEMPERATURE vs. AMBIENT TEMPERATURE
(V
IN
= 12V, L = 2.2uH, LOAD CURRENT = 4A)
(MAX15066)
MAX15066 toc27
AMBIENT TEMPERATURE (°C)
JUNCTION TEMPERATURE (°C)
756535 45 55
50
60
70
80
90
100
110
120
40
25 85
V
OUT
= 5V
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.2V
MAXIMUM LOAD CURRENT
vs. TEMPERATURE (V
IN
= 5V)
(MAX15066)
MAX15066 toc26
MAXIMUM LOAD CURRENT (A)
5
6
7
8
4
TEMPERATURE (°C)
-15 10 35 60-40 85
MAXIMUM CURRENT IS LIMITED BY
THERMAL SHUTDOWN OR CURRENT LIMIT
L = 2.2µH
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.2V
V
OUT
= 1.8V
MAXIMUM LOAD CURRENT
vs. TEMPERATURE (V
IN
= 12V)
(MAX15066)
MAX15066 toc25
MAXIMUM LOAD CURRENT (A)
5
6
7
8
9
10
4
TEMPERATURE (°C)
-15 10 35 60-40 85
V
OUT
= 1.2V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3VV
OUT
= 5.0V
L = 2.2µH
MAXIMUM CURRENT IS LIMITED BY
THERMAL SHUTDOWN OR CURRENT LIMIT
STARTUP INTO PREBIAS (4A LOAD)
MAX15066 toc24
V
OUT
1V/div
I
L
5A/div
I
LOAD
5A/div
V
EN
10V/div
0V
0V
0A
0A
400
µs/div