S-817A18ANB-CUHT2G Seiko Instruments, S-817A18ANB-CUHT2G Datasheet - Page 28

• Manufacturer Part Number: S-817A18ANB-CUHT2G
• Description: IC REG LDO 20MA 1.8V SC-82AB
• Manufacturer: Seiko Instruments

Specifications of S-817A18ANB-CUHT2G

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.8V
• Voltage - Input: Up to 10V
• Voltage - Dropout (typical): 0.58V @ 10mA
• Number Of Regulators: 1
• Current - Output: 20mA (Min)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SC-70-4, SC-82-4, SOT-323-4, SOT-343
• 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
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1. 3 Power fluctuation S-817A30A / S-817B30A (when using a ceramic capacitor, C
28
SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series
Load dependencies of overshoot at power fluctuation
V
DD
(0.2 V/div)
V
dependencies of overshoot at power fluctuation
OUT
0.5
0.4
0.3
0.2
0.1
0.8
0.6
0.4
0.2
10 V
4 V
0
1.E-07 1.E-06 1.E-05 1.E-04 1.E-03 1.E-02 1.E-01
1
0
3 V
0
V
V
IN
IN
=V
2
=V
V
OUT(S)
OUT(S)
IN
= 4 V → 10 V,I
TIME(200 μ s/div)
+1 V→ V
+1 V→V
4
I
V
OUT
2V
DD
3 V
(V)
(A)
DD
OUT(S)
, I
6
OUT
OUT
+2 V, C
= 1 mA, C
2 V
=1 mA, C
3V
8
5 V
L
=1 μF
5V
Seiko Instruments Inc.
L
L
=1 μF
= 1 μ F
10
C
“Ta” dependencies of overshoot at power fluctuation
L
dependencies of overshoot at power fluctuation
0.8
0.6
0.4
0.2
0.8
0.6
0.4
0.2
1
0
1
0
0.01
-50
V
IN
=V
2 V
V
OUT(S)
IN
=V
3 V
+1 V→V
OUT(S)
0.1
5 V
+1 V→V
0
2V
OUT(S)
C
Ta(°C)
L
(μF)
+2 V, I
OUT(S)
L
3V
=1 μF)
OUT
+2 V, I
50
1
=1 mA, C
5V
OUT
Rev.5.0
=1 mA
L
=1 μF
100
10
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