S-1701 Datasheet, PDF (55/70 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
Rev.2.4_00
S-1701 Series
(3) ON/OFF pin 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 = 100 mA
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 = 100 mA
5
3
4
2
VON/OFF
3
1
2
0
1 _VOUT
−1
0
−2
−1
−3
−10 0 10 20 30 40 50 60 70 80 90
7
6
6
4
5
VON/OFF
2
4
0
3
−2
2
−4
1 V_OUT
−6
0
−1
−10 0 10 20 30 40 50 60 70 80 90
t [µs]
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 = 100 mA
9
6
7
V_ON/OFF
3
5
0
3
−3
1 ^VOUT
−6
−1
−10 0 10 20 30 40 50 60 70 80 90
t [µs]
(4) Dynamic response characteristics vs. C_OUT
S-1701xxx15 (V_IN pull up: 100 kΩ, −V_DET = 1.5 V, Ta = 25 °C)
1000
100 ^tPLH
10
1
0.1 tPHL
0.01
0.001
0.00001 0.0001 0.001 0.01 0.1
C_DOUT [µF]
S-1701xxx55 (V_IN pull up: 100 kΩ, −V_DET = 5.5 V, Ta = 25 °C)
1000
100 ^tPLH
10
1
0.1
0.01 ^tPHL
0.001
0.00001 0.0001 0.001 0.01 0.1
C_DOUT [µF]
Seiko Instruments Inc.
55