S-818 Series
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© Seiko Instruments Inc., 2000-2010
LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.3.0
_00
The S-818 Series is a positive voltage regulator developed by CMOS technology and featured by low dropout
voltage, high output voltage accuracy and low current consumption.
Built-in low on-resistance transistor provides low dropout voltage and large output current. A ceramic capacitor
of 2
μF
or more can be used as an output capacitor. A shutdown circuit ensures long battery life.
The SOT-23-5 miniaturized package and the SOT-89-5 package are recommended for configuring portable
devices and large output current applications, respectively.
Features
•
Low current consumption:
•
•
•
•
•
•
•
At operation mode: Typ. 30
μA,
Max. 40
μA
At shutdown mode: Typ. 100 nA, Max. 500 nA
Output voltage:
2.0 to 6.0 V, selectable in 0.1 V steps.
High accuracy output voltage:
±2.0%
Peak output current:
200 mA capable (3.0 V output product, V
IN
=4 V)
*1
300 mA capable (5.0 V output product, V
IN
=6 V)
*1
Low dropout voltage:
Typ. 170 mV (5.0 V output product, I
OUT
=60 mA)
A ceramic capacitor (2
μF
or more) can be used as an output capacitor.
Built-in shutdown circuit
Lead-free, Sn 100%, halogen-free
*2
*1.
Attention should be paid to the power dissipation of the package when the output current is large.
*2.
Refer to “
Product Name Structure”
for details.
Applications
•
Power source for battery-powered devices, personal communication devices and home electric/electronic
appliances
Packages
•
SOT-23-5
•
SOT-89-5
Seiko Instruments Inc.
1
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-818 Series
Rev.3.0
_00
Block Diagram
*1
VIN
VOUT
ON/OFF
ON/OFF
circuit
+
−
Reference
voltage
VSS
*1.
Parasitic diode
Figure 1
2
Seiko Instruments Inc.
Rev.3.0
_00
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-818 Series
Product Name Structure
1. Product Name
S-818
x
xx
A
xx
-
xxx
T2
x
Environmental code
U:
Lead-free (Sn 100%), halogen-free
G : Lead-free (for details, please contact
our sales office)
IC direction in tape specifications
*1
Product name (abbreviation)
*2
Package name (abbreviation)
MC : SOT-23-5
UC : SOT-89-5
Output voltage
20 to 60
(e.g., When the output voltage is 2.0 V,
it is expressed as 20.)
Product type
*3
A: ON/OFF pin positive logic, high active
B: ON/OFF pin negative logic, low active
*1.
Refer to the tape specifications at the end of this book.
*2.
Refer to the “Table
1”
under the “3.
Product name list”.
*3.
Refer to “3.
ON/OFF pin (Shutdown pin)”
in the “
Operation”.
2. Package
Package Name
SOT-23-5
SOT-89-5
Drawing Code
Tape
MP005-A-C-SD
UP005-A-C-SD
Package
MP005-A-P-SD
UP005-A-P-SD
Reel
MP005-A-R-SD
UP005-A-R-SD
Seiko Instruments Inc.
3
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-818 Series
Rev.3.0
_00
3. Product name list
Table 1
Output Voltage
SOT-23-5
SOT-89-5
2.0 V±2.0%
S-818A20AMC-BGAT2x
S-818A20AUC-BGAT2x
2.1 V±2.0%
S-818A21AMC-BGBT2x
S-818A21AUC-BGBT2x
2.2 V±2.0%
S-818A22AMC-BGCT2x
S-818A22AUC-BGCT2x
2.3 V±2.0%
S-818A23AMC-BGDT2x
S-818A23AUC-BGDT2x
2.4 V±2.0%
S-818A24AMC-BGET2x
S-818A24AUC-BGET2x
2.5 V±2.0%
S-818A25AMC-BGFT2x
S-818A25AUC-BGFT2x
2.6 V±2.0%
S-818A26AMC-BGGT2x
S-818A26AUC-BGGT2x
2.7 V±2.0%
S-818A27AMC-BGHT2x
S-818A27AUC-BGHT2x
2.8 V±2.0%
S-818A28AMC-BGIT2x
S-818A28AUC-BGIT2x
2.9 V±2.0%
S-818A29AMC-BGJT2x
S-818A29AUC-BGJT2x
3.0 V±2.0%
S-818A30AMC-BGKT2x
S-818A30AUC-BGKT2x
3.1 V±2.0%
S-818A31AMC-BGLT2x
S-818A31AUC-BGLT2x
3.2 V±2.0%
S-818A32AMC-BGMT2x
S-818A32AUC-BGMT2x
3.3 V±2.0%
S-818A33AMC-BGNT2x
S-818A33AUC-BGNT2x
3.4 V±2.0%
S-818A34AMC-BGOT2x
S-818A34AUC-BGOT2x
3.5 V±2.0%
S-818A35AMC-BGPT2x
S-818A35AUC-BGPT2x
3.6 V±2.0%
S-818A36AMC-BGQT2x
S-818A36AUC-BGQT2x
3.7 V±2.0%
S-818A37AMC-BGRT2x
S-818A37AUC-BGRT2x
3.8 V±2.0%
S-818A38AMC-BGST2x
S-818A38AUC-BGST2x
3.9 V±2.0%
S-818A39AMC-BGTT2x
S-818A39AUC-BGTT2x
4.0 V±2.0%
S-818A40AMC-BGUT2x
S-818A40AUC-BGUT2x
4.1 V±2.0%
S-818A41AMC-BGVT2x
S-818A41AUC-BGVT2x
4.2 V±2.0%
S-818A42AMC-BGWT2x
S-818A42AUC-BGWT2x
4.3 V±2.0%
S-818A43AMC-BGXT2x
S-818A43AUC-BGXT2x
4.4 V±2.0%
S-818A44AMC-BGYT2x
S-818A44AUC-BGYT2x
4.5 V±2.0%
S-818A45AMC-BGZT2x
S-818A45AUC-BGZT2x
4.6 V±2.0%
S-818A46AMC-BHAT2x
S-818A46AUC-BHAT2x
4.7 V±2.0%
S-818A47AMC-BHBT2x
S-818A47AUC-BHBT2x
4.8 V±2.0%
S-818A48AMC-BHCT2x
S-818A48AUC-BHCT2x
4.9 V±2.0%
S-818A49AMC-BHDT2x
S-818A49AUC-BHDT2x
5.0 V±2.0%
S-818A50AMC-BHET2x
S-818A50AUC-BHET2x
5.1 V±2.0%
S-818A51AMC-BHFT2x
S-818A51AUC-BHFT2x
5.2 V±2.0%
S-818A52AMC-BHGT2x
S-818A52AUC-BHGT2x
5.3 V±2.0%
S-818A53AMC-BHHT2x
S-818A53AUC-BHHT2x
5.4 V±2.0%
S-818A54AMC-BHIT2x
S-818A54AUC-BHIT2x
5.5 V±2.0%
S-818A55AMC-BHJT2x
S-818A55AUC-BHJT2x
5.6 V±2.0%
S-818A56AMC-BHKT2x
S-818A56AUC-BHKT2x
5.7 V±2.0%
S-818A57AMC-BHLT2x
S-818A57AUC-BHLT2x
5.8 V±2.0%
S-818A58AMC-BHMT2x
S-818A58AUC-BHMT2x
5.9 V±2.0%
S-818A59AMC-BHNT2x
S-818A59AUC-BHNT2x
6.0 V±2.0%
S-818A60AMC-BHOT2x
S-818A60AUC-BHOT2x
Remark 1.
Please contact our sales office for type B products.
2.
x: G or U
3.
Please select products of environmental code = U for Sn 100%, halogen-free products.
4
Seiko Instruments Inc.
Rev.3.0
_00
Pin Configurations
SOT-23-5
Top view
5
4
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-818 Series
Table 2
Pin No.
Symbol
Pin description
1
VIN
Input voltage pin
2
VSS
GND pin
3
ON/OFF
Shutdown pin
*1
NC
4
No connection
5
VOUT
Output voltage pin
*1.
The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
1
2
3
Figure 2
SOT-89-5
Top view
5
4
Table 3
Pin No.
Symbol
Pin description
1
VOUT
Output voltage pin
2
VSS
GND pin
*1
3
NC
No connection
ON/OFF
Shutdown pin
4
VIN
Input voltage pin
5
*1.
The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
1
2
3
Figure 3
Seiko Instruments Inc.
5
