S-817A18ANB-CUH-T2 Seiko Instruments, S-817A18ANB-CUH-T2 Datasheet - Page 30

• Manufacturer Part Number: S-817A18ANB-CUH-T2
• Description: Low Dropout (LDO) Regulators 1.8V 1.2uA 2.0%
• Manufacturer: Seiko Instruments

Specifications of S-817A18ANB-CUH-T2

• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 12 V
• Output Voltage: 1.8 V
• Output Voltage Tolerance: +/- 2 %
• Output Type: Fixed
• Dropout Voltage (max): 1.58 V
• Output Current: 50 mA
• Line Regulation: 20 mV
• Load Regulation: 20 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SC-82AB
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

30
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series
V
Load current dependencies of undershoot at load
fluctuation
DD
(0.2V/div)
V
dependencies of undershoot at load fluctuation
OUT
1.5
0.5
30mA
0.5
0.4
0.3
0.2
0.1
10µA
2
1
0
1.E-05
0
3V
0
1.E-04
V
IN
2
=V
I
OUT
V
IN
OUT(S)
=V
=10 µA→30mA, V
1.E-03
2V
DD
TIME(50 ms/div)
+2 V, I
, I
4
I
V
OUT
OUT
DD
=10 µA→10 mA, C
OUT
(A)
(V)
1.E-02
=10 µA→I
6
5V
3V
IN
1.E-01
=5V, C
L,
2V
8
C
L
=1 µA
5V
3V
Seiko Instruments Inc.
L
L
=1 µF
1.E+00
=1 µF
10
C
“Ta” dependencies of undershoot at load fluctuation
L
dependencies of undershoot at load fluctuation
1.4
1.2
0.8
0.6
0.4
0.2
0.5
0.4
0.3
0.2
0.1
1
0
0
0.01
-50
V
2V
IN
=V
3V
OUT(S)
V
+2 V, I
IN
0.1
=V
5V
0
OUT(S)
OUT
C
Ta(°C)
L
=10 µA →10 mA, C
+2 V, I
(µF)
5V
OUT
50
1
=10 µA→10 mA
3V
Rev.3.0
2V
L
=1 µF
10
100
_00