S-1155 Datasheet, PDF (22/28 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.1.1_00
(3) Transient Response Characteristics of ON/OFF Pin (Ta = 25°C)
S-1155B10
V_IN = 2.0 V, C_OUT = 4.7 µF, C_IN = 4.7 µF, I_OUT = 100 mA
5
3
4
2
3 VON/OFF
1
2
0
1
−1
VOUT
0
−2
−1
−500
−3
0 500 1000 1500 2000
t [µs]
S-1155B30
V_IN = 4.0 V, C_OUT = 4.7 µF, C_IN = 4.7 µF, I_OUT = 100 mA
10
6
8
4
6 VON/OFF
2
4
0
2
−2
VOUT
0
−4
−2
−500
−6
0 500 1000 1500 2000
t [µs]
S-1155B50
V_IN = 5.5 V, C_OUT = 4.7 µF, C_IN = 4.7 µF, I_OUT = 100 mA
20
9
16
6
12 VON/OFF
3
8
0
4
−3
VOUT
0
−6
−4
−500
−9
0 500 1000 1500 2000
t [µs]
(4) Characteristics of Rush Current (Ta = 25°C)
S-1155B10
V_IN = 2.0 V, C_OUT = 4.7 µF, C_IN = 4.7 µF, I_OUT = 100 mA
6
1.2
4
1.0
VON/OFF
2
0.8
0
VOUT
0.6
−2
IOUT
0.4
−4
0.2
−6
−50 0
0
50 100 150 200
t [µs]
S-1155B30
V_IN = 4.0 V, C_OUT = 4.7 µF, C_IN = 4.7 µF, I_OUT = 100 mA
6
1.2
VON/OFF
4
1.0
2
0.8
0
VOUT
0.6
−2
0.4
−4
IOUT
0.2
−6
0
−50
0
50 100 150 200
t [µs]
V_IN = 2.0 V, C_OUT = 4.7 µF, C_IN = 4.7 µF, I_OUT = 500 mA
6
1.2
4
1.0
VON/OFF
2
0.8
0
VOUT
0.6
−2
0.4
IOUT
−4
0.2
−6
0
−100 0 100 200 300 400 500
t [µs]
V_IN = 4.0 V, C_OUT = 4.7 µF, C_IN = 4.7 µF, I_OUT = 500 mA
6
1.2
VON/OFF
4
1.0
2
0.8
0
VOUT
0.6
−2
0.4
−4
IOUT
0.2
−6
0
−100 0 100 200 300 400 500
t [µs]
22
Seiko Instruments Inc.