HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.2_01
S-1135 Series
3. Transient Response Characteristics of ON / OFF Pin (Ta = 25°C)
VOUT = 1.0 V
VOUT = 2.5 V
VIN = 2.0 V, tr = 5.0 μs, CL = 1.0 μF, CIN = 1.0 μF, IOUT = 100 mA
VIN = 3.5 V, tr = 5.0 μs, CL = 1.0 μF, CIN = 1.0 μF, IOUT = 100 mA
2.4
2.0
1.6
1.2
0.8
0.4
0
3
6
5
4
3
2
1
0
6
2
4
VON / OFF
VOUT
V
ON / OFF
OUT
1
2
0
0
−1
−2
−3
−2
−4
−6
V
−50
0
50
100
t [μs]
150
200
−50
0
50
100
t [μs]
150
200
VOUT = 3.5 V
VIN = 4.5 V, tr = 5.0 μs, CL = 1.0 μF, CIN = 1.0 μF, IOUT = 100 mA
6
5
4
3
2
1
0
6
4
VON / OFF
VOUT
2
0
−2
−4
−6
−50
0
50
100
t [μs]
150
200
4. Output Capacitance vs. Characteristics of Discharge Time (Ta = 25°C)
S-1135 Series A / B type (with discharge shunt function)
VIN = VOUT + 1.0 V, IOUT = no load
VON / OFF = VOUT + 1.0 V → VSS, tf = 1 μs
1 μs
2.5
2.0
1.5
1.0
0.5
0
VON / OFF
V
OUT(s) = 1.0 V
2.5 V
3.5 V
VSS
tDSC
VOUT
0
2
4
6
8
10
12
CL
[μF]
VOUT × 10%
VIN = VOUT + 1.0 V
VON / OFF = VOUT + 1.0 V → VSS
Figure 24
Figure 25 Measurement Condition of Discharge Time
30
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