S1165 Datasheet, PDF (19/23 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.1_00
S-1165 Series
 Reference Data
(1) Input transient response characteristics
IOUT = 30 mA, t_r = t_f = 5.0 μs, COUT = 2.2 μF, CIN = 0 μF
3.1
6
3.08
5
3.06
4
3.04
VIN
V_OUT
3
3.02
2
3
1
2.98
0
-10 0 10 20 30 40 50 60 70 80 90
t [μs]
(2) Load transient response characteristics
VIN = 4.0 V, COUT = 2.2 μF, CIN = 1.0 μF,
IOUT = 50 mA ↔100 mA
3.4
150
3.3
100
3.2
50
IOUT
3.1
0
3
-50
2.9
V_OUT
-100
2.8
-150
-2 0 2 4 6 8 10 12 14 16 18
t [μs]
(3) ON/OFF pin transient response characteristics
S-1165B15 (Ta = 25°C)
VIN = 2.5 V, COUT = 2.2 μF, CIN = 1.0 μF
2.5
3
2
V_ON/OFF
2
1.5
1
1
V_OUT
0
0.5
-1
0
-2
-0.5 _{-10 0 10 20 30 40 50 60 70 80 90} -3
t [μs]
S-1165B50 (Ta = 25°C)
VIN = 6.0 V, COUT = 2.2 μF, CIN = 1.0 μF
IOUT = 30 mA, t_r = t_f = 5.0 μs, COUT = 4.7 μF, CIN = 0 μF
3.1
6
3.08
5
3.06
VIN
4
3.04
V_OUT
3
3.02
2
3
1
2.98 _{-10 0 10 20 30 40 50 60 70 80 90} 0
t [μs]
VIN = 4.0 V, COUT = 4.7 μF, CIN = 1.0 μF,
IOUT = 50 mA ↔100 mA
3.4
150
3.3
100
3.2
50
IOUT
3.1
0
3
-50
2.9
V_OUT
-100
2.8
-150
-2 0 2 4 6 8 10 12 14 16 18
t [μs]
S-1165B30 (Ta = 25°C)
VIN = 4.0 V, COUT = 2.2 μF, CIN = 1.0 μF
5
6
4
4
V_ON/OFF
3
2
2
0
V_OUT
1
-2
0
-4
-1
-6
-10 0 10 20 30 40 50 60 70 80 90
t [μs]
7
6
5
4
3
2
1
0
-1 ^{-10 0}
8
V_ON/OFF
6
4
V_OUT
2
0
-2
-4
-6
10 20 30 40 50 60 70 80 90 _-8
t [μs]
Seiko Instruments Inc.
19