S-1711 Datasheet, PDF (31/44 Pages) Seiko Instruments Inc – SUPER-SMALL PACKAGE 2-CIRCUIT HIGH RIPPLE-REJECTION

SUPER-SMALL PACKAGE 2-CIRCUIT HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.3.1_01
S-1711 Series
 Reference Data (Per circuit)
1. Input Transient Response Characteristics (Ta = 25°C) Common to VR1 and 2
VOUT = 1.5 V
IOUT = 30 mA, tr = tf = 5.0 μs, CLn = 1.0 μF, CIN = 1.0 μF
1.56
4.0
1.55 _VIN
3.5
1.54
3.0
1.53
2.5
1.52
2.0
1.51
VOUT
1.5
1.50
1.0
1.49
0.5
1.48
0
-40 -20 0 20 40 60 80 100 120 140
t [μs]
VOUT = 3.0 V
IOUT = 30 mA, tr = tf = 5.0 μs, CLn = 1.0 μF, CIN = 1.0 μF
3.04
6
3.03
5
VIN
3.02
4
3.01
3
VOUT
3.00
2
2.99
1
2.98
0
-40 -20 0 20 40 60 80 100 120 140
t [μs]
VOUT = 5.0 V
IOUT = 30 mA, tr = tf = 5.0 μs, CLn = 1.0 μF, CIN = 1.0 μF
5.06
8
5.05 _VIN
7
5.04
6
5.03
5
5.02
4
5.01
VOUT
3
5.00
2
4.99
1
4.98
0
-40 -20 0 20 40 60 80 100 120 140
t [μs]
2. Load Transient Response Characteristics (Ta = 25°C)
VOUT = 1.5 V
VIN = 2.5 V, CLn = 1.0 μF, CIN = 1.0 μF, IOUT = 50 mA ↔ 100 mA
1.70
150
1.65
100
IOUT
1.60
50
1.55
0
VOUT
1.50
-50
1.45
-100
1.40
-150
-20 -10 0 10 20 30 40 50 60 70
t [μs]
VOUT = 3.0 V
VIN = 4.0 V, CLn = 1.0 μF, CIN = 1.0 μF, IOUT = 50 mA ↔ 100 mA
3.20
150
3.15
100
IOUT
3.10
50
3.05
0
VOUT
3.00
-50
2.95
-100
2.90
-150
-20 -10 0 10 20 30 40 50 60 70
t [μs]
VOUT = 5.0 V
VIN =6.0 V, CLn = 1.0 μF, CIN = 1.0 μF, IOUT = 50 mA ↔ 100 mA
5.20
150
5.15
100
5.10
IOUT
50
5.05
0
VOUT
5.00
-50
4.95
-100
4.90
-150
-20 -10 0 10 20 30 40 50 60 70
t [μs]
Remark CLn: Output capacitor set to the VOUTn pin externally (n = 1, 2)
31