S-1132 Datasheet, PDF (21/35 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR

HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.3.2_00
S-1132 Series
(3) ON / OFF Pin Transient Response Characteristics (Ta = 25°C)
S-1132B15
V_IN = 2.5 V, C_OUT = 0.1 µF, C_IN = 0.1 µF, I_OUT = 80 mA
5
6
4
VON/OFF
4
3
2
2
0
1
-2
0
VOUT
-4
-1
-6
-0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
t [ms]
S-1132B30
V_IN = 4.0 V, C_OUT = 0.1 µF, C_IN = 0.1 µF, I_OUT = 80 mA
10
6
8
VON/OFF
4
6
2
4
0
2
-2
0
VOUT
-4
-2
-6
-0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
t [ms]
S-1132B50
V_IN = 6.0 V, C_OUT = 0.1 µF, C_IN = 0.1 µF, I_OUT = 80 mA
14
12
VON/OFF
8
6
10
4
8
2
6
0
4
-2
2
0
VOUT
-4
-6
-2
-8
-0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
t [ms]
(4) Input transient response characteristics - Capacity Value characteristics (Ta = 25°C)
S-1132B15
V_IN = 2.5 V → 4.5 V, tr = 5 µF, I_OUT = 100 mA
1.70
1.65
1.60
1.55
1.50
VIN
VOUT
C = 1.0µ
1.45
C = 0.1µ
1.40
-80 -60 -40 -20 0 20 40 60
t [µs]
6
4
2
0
-2
-4
-6
80
V_IN = 4.5 V → 2.5 V, tr = 5 µF, I_OUT = 100 mA
1.8
VIN
1.7
1.6
1.5
VOUT
1.4
C = 1.0µ
1.3
C = 0.1µ
1.2
-80 -60 -40 -20 0 20 40 60
t [µs]
6
4
2
0
-2
-4
-6
80
(5) Load transient response characteristics - Capacity Value characteristics (Ta = 25°C)
S-1132B15
V_IN = 2.5 V, I_OUT = 1 → 50 mA
2.2
100
2.0
1.8
IOUT
1.6
VOUT
1.4
50
0
C = 1.0µ
1.2
C = 0.1µ
1.0
-100 -80 -60 -40 -20 0 20 40 60 80 100
t [µs]
V_IN = 2.5 V, I_OUT = 50 → 1 mA
2.2
100
IOUT
2.0
50
1.8
1.6
VOUT
0
C = 1.0µ
1.4
1.2
C = 0.1µ
1.0
-200 -150 -100 -50 0 50 100 150 200
t [µs]
Seiko Instruments Inc.
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