LOW CURRENT CONSUMPTION HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.2.3_01
S-1312 Series
Reference Data
1. Transient response characteristics when input (Ta = +25°C)
1. 1 VOUT = 1.0 V
1. 2 VOUT = 2.5 V
IOUT = 30 mA, CL = 0.22
μ
F, VIN = 2.0 V
↔
3.0 V, tr = tf = 5.0 μs
IOUT = 30 mA, CL = 0.22
μ
F, VIN = 3.5 V
↔
4.5 V, tr = tf = 5.0 μs
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
1.12
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
2.74
2.70
2.66
2.62
2.58
2.54
2.50
2.46
2.42
V
IN
V
IN
V
OUT
V
OUT
−40 −20
0
20 40 60 80 100 120 140
−40 −20
0
20 40 60 80 100 120 140
t [μs]
t [μs]
1. 3 VOUT = 3.5 V
IOUT = 30 mA, CL = 0.22
μ
F, VIN = 4.5 V
↔
5.5 V, tr = tf = 5.0 μs
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
3.74
3.70
3.66
3.62
3.58
3.54
3.50
3.46
3.42
V
IN
V
OUT
−40 −20
0
20 40 60 80 100 120 140
t [μs]
2. Transient response characteristics of load (Ta = +25°C)
2. 1 VOUT = 1.0 V
2. 2 VOUT = 2.5 V
VIN = 3.5 V, CIN = CL = 0.22 μF, IOUT = 50 mA ↔ 100 mA
VIN = 2.0 V, CIN = CL = 0.22 μF, IOUT = 50 mA ↔ 100 mA
150
100
50
150
100
50
1.20
1.15
1.10
1.05
1.00
0.95
0.90
2.70
2.65
2.60
2.55
2.50
2.45
2.40
I
OUT
I
OUT
0
0
V
OUT
V
OUT
−50
−100
−150
−50
−100
−150
−20 −10
0
10 20 30 40 50 60
−20 −10
0
10 20 30 40 50 60
t [μs]
t [μs]
2. 3
VOUT = 3.5 V
VIN = 4.5 V, CIN = CL = 0.22 μF, IOUT = 50 mA ↔ 100 mA
150
100
50
3.70
3.65
3.60
3.55
3.50
3.45
3.40
I
OUT
0
V
OUT
−50
−100
−150
−20 −10
0
10 20 30 40 50 60
t [μs]
27
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