MAX8566(2005) Просмотр технического описания (PDF) - Maxim Integrated
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MAX8566 Datasheet PDF : 21 Pages
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High-Efficiency, 10A, PWM
Internal-Switch Step-Down Regulator
Typical Operating Characteristics (continued)
(Typical values are at VIN = VDD = 3.3V, VOUT = 1.8V, RFREQ = 50kΩ, IOUT = 10A, and TA = +25°C.)
REFERENCE VOLTAGE vs. TEMPERATURE
0.65
0.64
0.63
0.62
0.61
0.60
0.59
0.58
0.57
0.56
0.55
-40
0
40
80
120
TEMPERATURE (°C)
FREQUENCY vs. TEMPERATURE
2.5
RFREQ = 23.3kΩ
2.0
1.5
RFREQ = 50kΩ
1.0
RFREQ = 100kΩ
0.5
0
-40 -15 10
35
60
85
TEMPERATURE (°C)
LOAD REGULATION
0.10
0.05
0
-0.05
VOUT = 2.5V
VOUT = 1.8V
-0.10
-0.15
-0.20
-0.25
VOUT = 0.8V
-0.30
-0.35
-0.40
0 1 2 3 4 5 6 7 8 9 10
LOAD CURRENT (A)
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE
10
9 VEN = 0V
8
7
6
5
4
3
2
1
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
INPUT VOLTAGE (V)
MAXIMUM OUTPUT CURRENT
vs. OUTPUT VOLTAGE
15.0
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
10.5
10.0
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5
OUTPUT VOLTAGE (V)
EXPOSED PADDLE TEMPERATURE
vs. LOAD CURRENT
120
TA = +85°C
70
20
-30
-80
0
TA = +25°C
TA = -40°C
MAX8566 EV KIT PC BOARD
200LFM
2
4
6
8
10
LOAD CURRENT (A)
LINE REGULATION
0.5
0.4
0.3
0.2
0.1
ILOAD = 0A
0
-0.1
-0.2
ILOAD = 4.5A
-0.3
ILOAD = 10A
-0.4
-0.5
2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00
INPUT VOLTAGE (V)
OUTPUT SHORT-CIRCUIT CURRENT
vs. INPUT VOLTAGE
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
6.0
2.25 2.45 2.65 2.85 3.05 3.25 3.45 3.65 3.85
INPUT VOLTAGE (V)
8 _______________________________________________________________________________________
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