S-19253E12H-U5T1U Datasheet, PDF (21/30 Pages) Seiko Instruments Inc – CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION

FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.1.0_00
S-19253xxxH Series
 Reference Data
1. Characteristics of input transient response (Ta = +25°C)
1. 1 V_OUT = 1.0 V
I_OUT = 100 mA, C_L = 2.2 μF, V_IN = 2.5 V ↔ 3.5 V, t_r = t_f = 5.0 μs
1.15
4.0
1.10 VIN
2.0
1.05
0.0
1.00 _VOUT
0.95
−200 0
−2.0
−4.0
200 400 600 800 1000 1200
t [s]
1. 2 V_OUT = 3.0 V
I_OUT = 100 mA, C_L = 2.2 μF, V_IN = 4.0 V ↔ 5.0 V, t_r = t_f = 5.0 μs
3.20
6.0
3.15 _VIN
4.0
3.10
2.0
3.05
0.0
3.00 _VOUT
2.95
−2.0
−4.0
2.90
−200 0
−6.0
200 400 600 800 1000 1200
t [s]
2. Characteristics of load transient response (Ta = +25°C)
2. 1 V_OUT = 1.0 V
V_IN = 2.5 V, C_L = 2.2 μF, I_OUT = 50 mA ↔ 100 mA
1.20
150
1.15
100
1.10 ^IOUT
50
1.05
0
VOUT
1.00
−50
0.95
−100
0.90
−200 0
−150
200 400 600 800 1000 1200
t [s]
V_IN = 2.5 V, C_L = 2.2 μF, I_OUT = 100 mA ↔ 500 mA
1.40
600
1.30
400
1.20 _IOUT
200
1.10
1.00 ^VOUT
0
−200
0.90
−400
0.80
−200 0
−600
200 400 600 800 1000 1200
t [s]
2. 2 V_OUT = 3.0 V
V_IN = 4.0 V, C_L = 2.2 μF, I_OUT = 50 mA ↔ 100 mA
3.20
150
3.15
100
3.10 ^IOUT
50
3.05 _VOUT
0
3.00
−50
2.95
−100
2.90
−200 0
−150
200 400 600 800 1000 1200
t [s]
V_IN = 4.0 V, C_L = 2.2 μF, I_OUT = 100 mA ↔ 500 mA
3.40
600
3.30
400
3.20
3.10
3.00
IOUT
VOUT
200
0
−200
2.90
−400
2.80
−200 0
−600
200 400 600 800 1000 1200
t [s]
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