Rev.2.3
ULTRA COMPACT CMOS VOLTAGE REGULATOR
S-817 Series
The S-817 is an ultra compact 3-pin positive voltage
regulator developed using CMOS technology. Housing into
a miniaturized 2.0 x 2.1 mm SC-82AB package, the S-817
offers key advantages for small, portable applications.
The S-817 allows many types of output capacitors including
ceramic capacitors and ensures highly-stable operations at
light load as low as 1碌A(chǔ).
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Features
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Applications
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Low current consumption
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Power source for
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Operating current: Typ. 1.2
碌A(chǔ),
Max. 2.5
碌A(chǔ)
Output voltage: 1.1 to 6.0 V(0.1 V step)
Output voltage accuracy:
鹵2.0
%
Output current;
Note
50 mA capable (3.0 V output product, V
IN
=5 V)
Note
75 mA capable (5.0 V output product, V
IN
=7 V)
Dropout voltage
Typ. 160 mV (V
OUT
= 5.0 V, I
OUT
= 10 mA)
Low ESR capacitor (e.g., a ceramic capacitor of
0.1
碌F
or more) can be used as an output capacitor.
Short circuit protection for: Series A
Excellent Line Regulation: Stable operation at light
load of 1
碌A(chǔ)
battery-powered devices
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Power source for
personal communication devices
O
Power source for home electric/electronic
appliances
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Packages
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SOT-23-5
(PKG drawing code : MP005-A)
4-pin SC-82AB
PKG drawing code : NP004-A)
3-pin SOT-89-3
PKG drawing code : UP003-A)
PKG drawing code : Y003-A)
TO-92
Note)
Power dissipation of the package should be taken into
account when the output current is large.
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Block Diagram
VIN
Note 1
VOUT
Note 2
Reference
voltage
Short circuit
protection
VSS
Note 1 Parasitic diode
Note 2 Series A only
Figure 1 Block Diagram
Seiko Instruments Inc.
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