S-1701 Datasheet, PDF (54/70 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series
Rev.2.4_00
„ Reference Data
(1) Input transient response characteristics
S-1701x15xx (V_IN = 2.5 V ↔ 3.5 V, V_OUT =1.5 V, Ta = 25 °C)
I_OUT = 100 mA, t_r = t_f = 5.0 µs, C_OUT = 1.0 µF, C_IN = 1.0 µF
1.62
4.0
1.60
3.5
1.58 _VIN
3.0
1.56
2.5
1.54
2.0
1.52 _VOUT
1.5
1.50
1.0
1.48
0.5
1.46
0
–40 –20 0 20 40 60 80 100 120 140 160 180
t [µs]
S-1701x30xx (V_IN = 4.0 V ↔ 5.0 V, V_OUT = 3.0 V, Ta = 25 °C)
I_OUT = 100 mA, t_r = t_f = 5.0 µs, C_OUT = 1.0 µF, C_IN = 1.0 µF
3.08
6.0
3.06
5.0
VIN
3.04
4.0
3.02
3.0
VOUT
3.00
2.0
2.98
1.0
2.96
0
–40 –20 0 20 40 60 80 100 120 140 160 180
t [µs]
S-1701x50xx (V_IN = 6.0 V ↔ 6.5 V, V_OUT = 5.0 V, Ta = 25 °C)
I_OUT = 100 mA, t_r = t_f = 5.0 µs, C_OUT = 1.0 µF, C_IN = 1.0 µF
5.12
8.0
5.10 _VIN
7.0
5.08
6.0
5.06
5.0
5.04
4.0
5.02
3.0
5.00 ^VOUT
2.0
4.98
1.0
4.96
0
–40 –20 0 20 40 60 80 100 120 140 160 180
t [µs]
(2) Load transient response characteristics
S-1701x15xx (V_OUT =1.5 V, Ta = 25 °C)
V_IN = 2.5 V, t_r = t_f = 5.0 µs, C_OUT = 1.0 µF, C_IN = 1.0 µF, I_OUT = 50↔100 mA
1.70
150
1.65 ^IOUT
100
1.60
50
1.55
0
V_OUT
1.50
−50
1.45
−10
1.40
0
−20 0 20 40 60 80 100 120 140 160
t [µs]
S-1701x30xx (V_OUT = 3.0 V, Ta = 25 °C)
V_IN = 4.0 V, t_r = t_f = 5.0 µs, C_OUT = 1.0 µF, C_IN = 1.0 µF, I_OUT = 50↔100 mA
3.20
150
3.15 ^IOUT
100
3.10
50
3.05
0
V_OUT
3.00
−50
2.95
−10
2.90
0
−20 0 20 40 60 80 100 120 140 160
t [µs]
S-1701x50xx (V_OUT = 5.0 V, Ta = 25 °C)
V_IN = 6.0 V, t_r = t_f = 5.0 µs, C_OUT = 1.0 µF, C_IN = 1.0 µF, I_OUT = 50↔100 mA
5.20
150
5.15 ^IOUT
100
5.10
50
5.05
VOUT
0
5.00
−50
4.95
−10
4.90
0
−20 0 20 40 60 80 100 120 140 160
t [µs]
54
Seiko Instruments Inc.