参数资料
型号: MAX8654EVKIT+
厂商: Maxim Integrated Products
文件页数: 3/17页
文件大小: 0K
描述: EVAL KIT MAX8654, MAX8688
标准包装: 1
系列: *
12V, 8A 1.2MHz
Step-Down Regulator
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V EN = V VP = 12V, V VDL = 5V, V VL = 3.3V, V SYNC = 0V, V FB = 0.5V, T A = -40°C to +85°C , typical values are at T A = +25°C,
unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ERROR AMPLIFIER
FB Regulation Voltage
VP = V IN = 4.5V to 14V
0.594
0.6
0.606
V
Open-Loop Voltage Gain
Error-Amplifier Unity-Gain
Bandwidth
Error-Amplifier Common-Mode
Input Range
1k ? from COMP to GND
Parallel 10k ? , 160pF from COMP to GND
0
95
20
1.5
dB
MHz
V
Error-Amplifier Maximum Output
Current
FB Input Bias Current
V COMP = 1V
V FB = 0.6V
1
-35
mA
nA
REFIN
REFIN Input Bias Current
REFIN Common-Mode Range
V REFIN = 0.6V
0
-60
1.5
nA
V
LX (All Pins Combined)
LX On-Resistance, High Side
LX On-Resistance, Low Side
I LX = -180mA
I LX = 180mA
V BST - V LX = 5V
36
25
64
40
m ?
m ?
LX Current-Limit Threshold
R ILIM = 100k ?
Sourcing
Sinking
7
7
8
8
10
10
A
R ILIM Range
40
200
k ?
LX Leakage Current
V EN = 0V
V LX = 14V = V IN
V LX = 0V, V IN = 14V
-50
+50
μA
LX Switching Frequency
R FREQ Range
R FREQ = 50k ?
R FREQ = 100k ?
0.85
0.45
50
1
0.5
1.1
0.55
200
MHz
k ?
LX Minimum On-Time
80
ns
Maximum RMS LX Output Current
(Note 2)
10.5
A
EN/SS
EN Input Logic-Low Threshold
EN Input Logic-High Threshold
1.2
0.6
V
V
EN Input Current
V EN = 0V
V EN = 14V
-1
7
μA
SS Current
V SS = 0.45V
-10
-8
-6
μA
REFIN Discharge Resistance
Current-Limit Startup Blanking
Restart Time
500
110
900
?
Clock
cycles
Clock
cycles
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3
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