S1135 Datasheet, PDF (29/48 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT

HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.2_00
S-1135 Series
 Reference Data
1. Transient Response Characteristics when Input (Ta = 25°C)
VOUT = 1.0 V
I_OUT = 100 mA, t_r = t_f = 5.0 μs, C_L = 1.0 μF
1.30
4.0
1.25
3.5
1.20
3.0
1.15 _VIN
2.5
1.10
2.0
1.05 _VOUT
1.5
1.00
1.0
0.95
0.5
0.90
0
−100 −50 0 50 100 150 200 250 300 350
t [μs]
VOUT = 2.5 V
I_OUT = 100 mA, t_r = t_f = 5.0 μs, C_L = 1.0 μF
2.80
5.0
2.75
4.5
2.70 _VIN
4.0
2.65
3.5
2.60
3.0
2.55 _VOUT
2.5
2.50
2.0
2.45
1.5
2.40
1.0
−100 −50 0 50 100 150 200 250 300 350
t [μs]
VOUT = 3.5 V
I_OUT = 100 mA, t_r = t_f = 5.0 μs, C_L = 1.0 μF
3.80
6.0
3.75
5.5
3.70 _VIN
5.0
3.65
4.5
3.60
4.0
3.55 _VOUT
3.5
3.50
3.0
3.45
2.5
3.40
2.0
−100 −50 0 50 100 150 200 250 300 350
t [μs]
2. Transient Response Characteristics of Load (Ta = 25°C)
VOUT = 1.0 V
V_IN = 2.0 V, C_L = 1.0 μF, C_IN = 1.0 μF, I_OUT = 50 mA ↔ 100 mA
1.20
150
VOUT = 2.5 V
V_IN = 3.5 V, C_L = 1.0 μF, C_IN = 1.0 μF, I_OUT = 50 mA ↔ 100 mA
2.70
150
1.15
IOUT
100
2.65
IOUT
100
1.10
50
2.60
50
1.05
VOUT
0
2.55
VOUT
0
1.00
−50
2.50
−50
0.95
−100
2.45
−100
0.90
−150
−100 −50 0 50 100 150 200 250 300 350
t [μs]
V_OUT = 3.5 V
V_IN = 4.5 V, C_L = 1.0 μF, C_IN = 1.0 μF, I_OUT = 50 mA ↔ 100 mA
3.70
150
2.40
−150
−100 −50 0 50 100 150 200 250 300 350
t [μs]
3.65
IOUT
100
3.60
50
3.55
VOUT
0
3.50
−50
3.45
−100
3.40
−150
−100 −50 0 50 100 150 200 250 300 350
t [μs]
Seiko Instruments Inc.
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