S-814 Datasheet, PDF (20/32 Pages) Seiko Instruments Inc – LOW DROPOUT CMOS VOLTAGE REGULATOR

LOW DROPOUT CMOS VOLTAGE REGULATOR
S-814 Series
„ Reference Data
1. Transient Response Characteristics (S-814A30A, Typical data, Ta=25°C)
Input voltage
or
Load current
Overshoot
Output volatage
Rev.2.1_00
Undershoot
1-1. At power on
Output voltage (V_OUT) – Time (t)
V_IN=0→10 V, I_OUT=30 mA
10 V
0V
V_IN
C_L=1 μF
V_OUT
C_L=4.7 μF
0V
t [50 μs/div]
Load dependencies of overshoot
V_IN=0→V_OUT(S)+1 V, C_L=1 μF
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=0→V_DD, I_OUT=30 mA, C_L=1 μF
1.0
0.8
3V ^5V
0.6 ^{VOUT=2 V}
0.4
0.2
0
0 2 4 6 8 10
V_DD [V]
C_L dependencies of overshoot
1.0
V_IN=0→V_OUT(S)+1 V, I_OUT=30 mA
3V
0.8
5V
0.6
0.4
0.2
V_OUT=2 V
0
0.1
1
10
100
C_L [uF]
Temperature dependencies of overshoot
V_IN=0→V_OUT(S)+1 V, I_OUT=30 mA, C_L=1 μF
1.0
0.8
3V ^5V
0.6
0.4
0.2 _{VOUT=2 V}
0
−50
0
50
100
Ta [°C]
20
Seiko Instruments Inc.