S-814 Datasheet, PDF (21/32 Pages) Seiko Instruments Inc – LOW DROPOUT CMOS VOLTAGE REGULATOR

Rev.2.1_00
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-814 Series
1-2. At power on/off control
Output voltage (V_OUT) – Time (t)
V_IN=10 V, ON/OFF=0→10 V, I_OUT=30 mA
10 V
0V
C_L=1 μF
ON/OFF
V_OUT
0V
C_L=4.7 μF
t [50 μs/div]
Load dependencies of overshoot
V_IN=V_OUT(S)+1 V, C_L=1 μF, ON/OFF=0→V_OUT(S)+1 V
0.8
5V
0.6
0.4
3V
V_OUT=2 V
0.2
0
1.E−05 1.E−04 1.E−03 1.E−02 1.E−01 1.E+00
I_OUT [A]
V_DD dependencies of overshoot
V_IN=V_DD, I_OUT=30 mA, C_L=1 μF, ON/OFF=0→V_DD
1.0
5V
0.8
3V
0.6
0.4
0.2
V_OUT=2 V
0
0
2
4
6
8
10
V_DD [V]
C_L dependencies of overshoot
V_IN=V_OUT(S)+1 V, I_OUT=30 mA, ON/OFF=0→V_OUT(S)+1V
1.0
0.8
3V
5V
0.6
0.4
0.2
0
0.1
V_OUT=2 V
1
10
100
C_L [μF]
Temperature dependencies of overshoot
V_IN=V_OUT(S)+1 V, I_OUT=30 mA, C_L=1 μF,
ON/OFF=0→V_OUT(S)+1V
1.0
0.8
5V
0.6
0.4
3V
0.2
V_OUT=2 V
0
−50
0
50
100
Ta [°C]
Seiko Instruments Inc.
21