Datasheet

MAX8566
High-Efficiency, 10A, PWM
Internal-Switch Step-Down Regulator
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(Typical values are at V
IN
= V
DD
= 3.3V, V
OUT
= 1.8V, R
FREQ
= 50kΩ, I
OUT
= 10A, and T
A
= +25°C.)
REFERENCE VOLTAGE vs. TEMPERATURE
MAX8566 toc04
TEMPERATURE (°C)
REFERENCE VOLTAGE (V)
80400
0.56
0.57
0.58
0.59
0.60
0.61
0.62
0.63
0.64
0.65
0.55
-40 120
0
0.5
1.5
1.0
2.0
2.5
-40 10-15 35 60 85
FREQUENCY vs. TEMPERATURE
MAX8566 toc05
TEMPERATURE (°C)
FREQUENCY (MHz)
R
FREQ
= 23.3kΩ
R
FREQ
= 50kΩ
R
FREQ
= 100kΩ
-0.40
-0.30
-0.35
-0.20
-0.25
-0.10
-0.15
-0.05
0.05
0
0.10
0 23415679810
LOAD REGULATION
MAX8566 toc06
LOAD CURRENT (A)
OUTPUT VOLTAGE CHANGE (%)
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 0.8V
0
2
1
4
3
6
5
7
9
8
10
0 1.0 1.50.5 2.0 2.5 3.0 3.5 4.0
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX8566 toc07
INPUT VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (µA)
V
EN
= 0V
10.0
11.0
10.5
12.0
11.5
13.0
12.5
13.5
14.5
14.0
15.0
0.5 0.9 1.1 1.30.7 1.5 1.7 1.9 2.32.1 2.5
MAXIMUM OUTPUT CURRENT
vs. OUTPUT VOLTAGE
MAX8566 toc08
OUTPUT VOLTAGE (V)
OUTPUT CURRENT (A)
-80
-30
70
20
120
0426810
EXPOSED PADDLE TEMPERATURE
vs. LOAD CURRENT
MAX8566 toc09
LOAD CURRENT (A)
EXPOSED PADDLE TEMPERATURE (°C)
MAX8566 EV KIT PCB
200LFM
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
-0.5
-0.2
-0.3
-0.4
0
-0.1
0.4
0.3
0.2
0.1
0.5
2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00
LINE REGULATION
MAX8566 toc10
INPUT VOLTAGE (V)
OUTPUT VOLTAGE CHANGE (%)
I
LOAD
= 0A
I
LOAD
= 4.5A
I
LOAD
= 10A
6.0
7.0
6.5
8.0
7.5
8.5
9.0
9.5
10.0
2.25 2.65 2.852.45 3.05 3.25 3.45 3.65 3.85
OUTPUT SHORT-CIRCUIT CURRENT
vs. INPUT VOLTAGE
MAX8566 toc11
INPUT VOLTAGE (V)
OUTPUT SHORT-CIRCUIT CURRENT (A)