S-814A30AMC-BCUT2G 데이터 시트보기 (PDF) - Seiko Instruments Inc
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S-814A30AMC-BCUT2G Datasheet PDF : 32 Pages
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LOW DROPOUT CMOS VOLTAGE REGULATOR
S-814 Series
Rev.2.1_00
1-3. At power fluctuation
Output voltage (VOUT) – Time (t)
VIN=4.0→10 V, IOUT=30 mA
10 V
4V
VIN
VOUT
3V
CL=1 μF
CL=4.7 μF
t [50 μs/div]
Load dependencies of overshoot
VIN=VOUT(S)+1 V→VOUT(S)+2 V, CL=1 μF
0.8
3V
0.6
0.4
5V
0.2
VOUT=2 V
0
1.E−05 1.E−04 1.E−03 1.E−02 1.E−01 1.E+00
IOUT [A]
VDD dependencies of overshoot
VIN=VOUT(S)+1 V→VDD, IOUT=30 mA, CL=1 μF
2.0
3V
1.5
VOUT=2 V
1.0
0.5
5V
0
0
2
4
6
8
10
VDD [V]
Load dependencies of undershoot
VIN=VOUT(S)+2 V→VOUT(S)+1 V, CL=1 μF
0.8
0.6
3V
5V
0.4
0.2
VOUT=2 V
0
1.E−05 1.E−04 1.E−03 1.E−02 1.E−01 1.E+00
IOUT [A]
10 V
VIN=10→4.0 V, IOUT=30 mA
4V
VIN
VOUT
3V
CL=4.7 μF
CL=1 μF
t [50 μs/div]
CL dependencies of overshoot
VIN=VOUT(S)+1 V→VOUT(S)+2 V, IOUT=30 mA
1.4
1.2
5V
3V
1.0
0.8
0.6
0.4 VOUT=2 V
0.2
0
0.1
1
10
100
CL [μF]
Temperature dependencies of overshoot
VIN=VOUT(S)+1 V→VOUT(S)+2 V, IOUT=30 mA, CL=1 μF
1.0
3V
0.8
0.6
0.4
VOUT=2 V
5V
0.2
0
−50
0
50
100
Ta [°C]
CL dependencies of undershoot
VIN=VOUT(S)+2 V→VOUT(S)+1 V, IOUT=30 mA
1.4
1.2
5V
1.0
3V
0.8
0.6
0.4
0.2
VOUT=2 V
0
0.1
1
10
100
CL [μF]
22
Seiko Instruments Inc.
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