S1200 Datasheet, PDF (21/37 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT LOW INPUT-AND-OUTPUT CAPACITANCE CMOS VOLTAGE REGULATOR

HIGH RIPPLE-REJECTION LOW DROPOUT LOW INPUT-AND-OUTPUT CAPACITANCE CMOS VOLTAGE REGULATOR
Rev.5.1_01
S-1200 Series
 Reference Data
1. Input transient response characteristics
S-1200B15 (Ta = +25°C)
IOUT = 30 mA, t_r = t_f = 5.0 μs, COUT = 0.1 μF, CIN = 0.1 μF
1.62
1.60
1.58
1.56
V_IN
1.54
1.52
1.50
VOUT
1.48
1.46
-40 -20 0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
20 40 60 80 100 120 140 160
t [μs]
S-1200B50 (Ta = +25°C)
IOUT = 30 mA, t_r = t_f = 5.0 μs, COUT = 0.1 μF, CIN = 0.1 μF
5.12
5.10
5.08
V_IN
5.06
5.04
5.02
5.00
VOUT
4.98
4.96
-40 -20 0
8
7
6
5
4
3
2
1
0
20 40 60 80 100 120 140 160
t [μs]
2. Load transient response characteristics
S-1200B15 (Ta = +25°C)
VIN = 2.5 V, COUT = 0.1 μF, CIN = 0.1 μF, IOUT = 50 mA↔100 mA
1.70
1.65
1.60 ^IOUT
1.55
VOUT
1.50
1.45
1.40
-40 -20 0
150
100
50
0
–50
–100
–150
20 40 60 80 100 120 140 160
t [μs]
S-1200B50 (Ta = +25°C)
VIN = 6.0 V, COUT = 0.1 μF, CIN = 0.1 μF, IOUT = 50 mA↔100 mA
5.20
5.15
5.10 ^IOUT
5.05
5.00 ^VOUT
4.95
4.90
-40 -20 0
150
100
50
0
–50
–100
–150
20 40 60 80 100 120 140 160
t [μs]
S-1200B30 (Ta = +25°C)
IOUT = 30 mA, t_r = t_f = 5.0 μs, COUT = 0.1 μF, CIN = 0.1 μF
3.08
3.06
VIN
3.04
3.02
3.00 _VOUT
2.98
2.96
-40 -20 0
6
5
4
3
2
1
0
20 40 60 80 100 120 140 160
t [μs]
S-1200B30 (Ta = +25°C)
VIN = 4.0 V, COUT = 0.1 μF, CIN = 0.1 μF, IOUT = 50 mA↔100 mA
3.20
3.15
I_OUT
3.10
3.05
3.00 ^VOUT
2.95
2.90_{-40 -20 0}
150
100
50
0
–50
–100
–150
20 40 60 80 100 120 140 160
t [μs]
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