S-13R1 Datasheet, PDF (29/49 Pages) Seiko Instruments Inc – REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR

Rev.1.2_01
REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR
S-13R1 Series
 Reference Data
1. Transient response characteristics when input (Ta = +25°C)
1. 1 VOUT(S) = 1.2 V
1. 2 VOUT(S) = 3.0 V
IOUT = 30 mA, CIN = CL = 1.0 μF, VIN = 2.2 V ↔ 3.2 V, tr = tf = 5.0 μs
1.40
4.0
1.35
3.5
1.30
3.0
1.25
VIN
2.5
1.20
2.0
1.15 ^VOUT
1.5
1.10
1.0
1.05
0.5
1.00
0
−400 −200 0 200 400 600 800
t [μs]
1. 3 VOUT(S) = 4.0 V
IOUT = 30 mA, CIN = CL = 1.0 μF, VIN = 4.0 V ↔ 5.0 V, tr = tf = 5.0 μs
3.20
7.0
3.15
6.0
3.10
VIN
5.0
3.05
4.0
3.00
3.0
2.95
VOUT
2.0
2.90
1.0
2.85
0
−400 −200 0 200 400 600 800
t [μs]
IOUT = 30 mA, CIN = CL = 1.0 μF, VIN = 5.0 V ↔ 5.5 V, tr = tf = 5.0 μs
4.15
7.0
4.10
6.0
4.05
VIN
5.0
4.00
4.0
3.95 ^VOUT
3.0
3.90
2.0
3.85
1.0
3.80
0
−400 −200 0 200 400 600 800
t [μs]
2. Transient response characteristics of load (Ta = +25°C)
2. 1 VOUT(S) = 1.2 V
VIN = 2.2 V, CIN = CL = 1.0 μF, IOUT = 50 mA ↔ 100 mA
VIN = 2.2 V, CIN = CL = 1.0 μF, IOUT = 1 mA ↔ 150 mA
1.40
1.35
1.30 IOUT
1.25
1.20
1.15
VOUT
1.10
1.05
1.00
−200 −100 0
2. 2 VOUT(S) = 3.0 V
200
100
0
−100
−200
−300
−400
−500
−600
100 200 300 400
t [μs]
2.00
1.80
1.60
1.40 ^IOUT
1.20
VOUT
1.00
0.80
0.60
−200 −100 0
200
100
0
−100
−200
−300
−400
−500
100 200 300 400 500
t [μs]
VIN = 4.0 V, CIN = CL = 1.0 μF, IOUT = 50 mA ↔ 100 mA
3.20
200
3.15
100
3.10
3.05
3.00
2.95
IOUT
VOUT
0
−100
−200
−300
2.90
−400
2.85
−500
2.80
−600
−400 −200 0 200 400 600 800
t [μs]
VIN = 4.0 V, CIN = CL = 1.0 μF, IOUT = 1 mA ↔ 150 mA
3.80
3.60
3.40
3.20 ^IOUT
3.00
2.80
VOUT
2.60
2.40
2.20
−400 −200 0
200
100
0
−100
−200
−300
−400
−500
−600
200 400 600 800 1000
t [μs]
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