MIC2185BQS 查看數據表（PDF） - Micrel
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MIC2185BQS Datasheet PDF : 15 Pages
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MIC2185
Typical Characteristics
Quiescent Current vs.
Temperature (SKIP Mode)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
VINA = 5VDC
0.1
-040 -20 0
VINP = 12VDC
IQ = IQVINA+IQVINP
20 40 60 80 100120140
TEMPERATURE (°C)
Quiescent Current vs.
Input Voltage( PWM Mode)
5.0
4.5
VINP = 12V
4.0
3.5
3.0
VINP = 9V
2.5
2.0
1.5
VINP = 5V
1.0
0.5
IQ = IQVINA + IQVINP
fS = 400kHz
00 2 4 6 8 10 12 14 16
INPUT VOLTAGE (VINA)
Reference Voltage
vs. Reference Current
1.2470
1.2469
1.2468
1.2467
1.2466
1.2465
1.2464
1.2463
111...2224446660120VV1IINN0AP2==0513V20DVCD40C 50 60 70 80 90 100
REFERENCE CURRENT (µA)
3.040
3.035
3.030
VDD vs.
Load Current
VINP = 12VDC
VINA = 5VDC
3.025
3.020
3.015
3.0100 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
IVDD (mA)
October 2005
Quiescent Current vs.
Temperature (PWM Mode)
4.75
4.70
4.65
4.60
4.55
4.50
4.45 VINA = 5VDC
4.40 VINP = 12VDC
4.35
fS = 400kHz
IQ = IQVINA+IQVINP
4.30
TEMPERATURE (°C)
Quiescent Current vs.
Input Voltage (SKIP Mode)
0.80
0.75
0.70
VINP = 12VDC
0.65
VINP = 9VDC
0.60
VINP = 5VDC
0.550 2 4 6 8 10 12 14 16
INPUT VOLTAGE (VINA)
1.257
1.255
1.253
Reference Voltage
vs. Temperature
VINP = 12VDC
VINA = 5VDC
1.251
1.249
1.247
1.245
1.243
1.241
1.239
1.23-740 -20 0 20 40 60 80 100120140
TEMPERATURE(°C)
VDD vs.
Temperature
3.08
3.07 VINP = 12VDC
3.06 VINA = 5VDC
3.05
3.04
3.03
3.02
3.01
3.00
2.99
2.98
TEMPERATURE (°C)
5
Micrel, Inc.
Quiescent Current vs.
Input Voltage(PWM Mode)
5.0
4.5
4 0 0 kH z
4.0
3.5
3.0
2.5
200kHz
2.0
1.5
1.0 VINP =12VDC
0.5 IQ = IQVINA+IQVINP
00 2 4 6 8 10 12 14 16
INPUT VOLTAGE (VINA)
1.2475
1.247
Reference Voltage
vs. Input Voltage
VINP = 12VDC
1.2465
1.246
1.2455
1.2450 2 4 6 8 10 12 14 16
INPUT VOLTAGE (VINA)
3.15
3.10
3.05
3.00
2.95
2.90
2.85
2.800
VDD vs.
Input Voltage
VINP = 12VDC
2 4 6 8 10 12 14
INPUT VOLTAGE (VINA)
IENABLE vs. VENABLE
300
VINP = 12VDC
–40°C
250 VINA = 5VDC
200
150
100
20°C
85°C
50
00 2 4 6 8 10 12 14
VENABLE (V)
MIC2185
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