S-1702 Datasheet, PDF (39/45 Pages) Seiko Instruments Inc – Built-in overcurrent protection circuit

SUPER-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION
Rev.2.2_01
S-1702 Series
 Reference Data
1. Input transient response characteristics (Ta = +25°C)
IOUT = 30 mA, tr = tf = 5.0 μs, CL = 1.0 μF, CIN = 1.0 μF
VOUT = 1.5 V, VIN = 2.5 V ↔ 3.5 V
IOUT = 30 mA, tr = tf = 5.0 μs, CL = 1.0 μF, CIN = 1.0 μF
VOUT = 3.1 V, VIN = 4.1 V ↔ 5.1 V
1.60
1.58
1.56 _VIN
1.54
1.52
1.50
VOUT
1.48
1.46
1.44
−100 −50 0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
50 100 150 200 250 300 350
t [μs]
3.35
3.30
3.25 VIN
3.20
3.15
3.10
VOUT
3.05
3.00
2.95
−100 −50 0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
50 100 150 200 250 300 350
t [μs]
2. Load transient response characteristics (Ta = +25°C)
VIN = 2.5 V, CL = 1.0 μF, CIN = 1.0 μF
VOUT = 1.5 V, IOUT = 50 mA ↔ 100 mA
VIN = 4.0 V, CL = 1.0 μF, CIN = 1.0 μF
VOUT = 3.1 V, IOUT = 50 mA ↔ 100 mA
1.70
1.65
1.60
IOUT
1.55
1.50
VOUT
1.45
1.40
1.35
−100 −50 0
150
100
50
0
−50
−100
−150
−200
50 100 150 200 250 300 350
t [μs]
3.30
3.25
3.20
IOUT
3.15
3.10
VOUT
3.05
3.00
2.95
−100 −50 0
150
100
50
0
−50
−100
−150
−200
50 100 150 200 250 300 350
t [μs]
VIN = 6.0 V, CL = 1.0 μF, CIN = 1.0 μF
VOUT = 5.5 V, IOUT = 50 mA ↔ 100 mA
6.40
6.20
6.00
IOUT
5.80
5.60
VOUT
5.40
5.20
5.00
−100 −50 0
150
100
50
0
−50
−100
−150
−200
50 100 150 200 250 300 350
t [μs]
39