Rev.1.5
_00
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-814 Series
The S-814 Series is a low dropout voltage, high output
voltage accuracy and low current consumption positive
voltage regulator developed utilizing CMOS technology.
Built-in low ON-resistance transistors provide low dropout
voltage and large output current. A shutdown circuit ensures
long battery life.
Various types of output capacitors can be used in the S-814
Series compared with the past CMOS voltage regulators.
(i.e., Small ceramic capacitors can also be used in the S-814
Series.)
The SOT-23-5 miniaturized package and the SOT-89-3 and
the SOT-89-5 packages are recommended to use for
configuring portable devices and large output current
applications, respectively.
Features
•
Low current consumption
At operation mode:
At shutdown mode:
•
Output voltage:
•
High accuracy output voltage:
•
Output current:
•
Low dropout voltage:
•
Built-in shutdown circuit
Typ. 30
µA,
Max. 40
µA
Typ. 100 nA, Max. 500 nA
0.1 V steps between 2.0 and 6.0 V
±2.0
%
*1
110 mA capable: 3.0 V output product, at V
IN
=4
V
*1
180 mA capable: 5.0 V output product, at V
IN
=6
V
Typ. 170 mV:
5.0 V output product, at I
OUT
=60
mA
Selection without a shutdown function is possible. (S-814AxxAUA
Series)
•
Built-in short-circuit protection
•
Low ESR capacitor, e.g. a ceramic capacitor of 0.47
µF
or more, can be used as the output capacitor.
•
Small package:
SOT-23-5, SOT-89-3, and SOT-89-5
*1.
Attention should be paid to the power dissipation of the package when the output current is large.
Applications
•
Power source for battery-powered devices, personal communication devices, and home electric/electronic
appliances.
Packages
•
SOT-23-5 (Package drawing code: MP005-A)
•
SOT-89-3 (Package drawing code: UP003-A)
•
SOT-89-5 (Package drawing code: UP005-A)
Seiko Instruments Inc.
1
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-814 Series
Block Diagrams
1. S-814xxxAMC Series, S-814xxxAUC Series
*1
Rev.1.5
_00
VIN
VOUT
ON/OFF
Shutdown
circuit
+
−
Short-circuit
protection
circuit
Reference
voltage
VSS
*1.
Parasitic diode
Figure 1
2. S-814AxxAUA Series
*1
VIN
VOUT
+
−
Short-circuit
protection
circuit
Reference
voltage
VSS
*1.
Parasitic diode
Figure 2
2
Seiko Instruments Inc.
Rev.1.5
_00
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-814 Series
Product Code Structure
1. Product name
S-814 x xx A xx- xxx- T2
IC direction in tape specifications
Product name (Abbreviation)
*2
*1
Package name (Abbreviation)
MC: SOT-23-5
UA: SOT-89-3
UC: SOT-89-5
Output voltage
20 to 60
(E.g., When output voltage is 2.0 V, it is expressed as 20.)
Product type
A: ON / OFF pin positive logic (SOT-23-5, SOT-89-5),
or without shutdown function (SOT-89-3)
B: ON / OFF pin negative logic
*3
*1.
Refer to the taping specifications at the end of this book.
*2.
Refer to the
Table 1
in “2.
Product name list”.
*3.
Refer to “3.
ON/OFF pin (Shutdown pin)”
in “
Operation”.
Remark
A ON/OFF pin and a shutdown circuit are not in S-814AxxAUA Series.
2. Product name list
Table1 (1/2)
Output voltage
2.0 V±2.0 %
2.1 V±2.0 %
2.2 V±2.0 %
2.3 V±2.0 %
2.4 V±2.0 %
2.5 V±2.0 %
2.6 V±2.0 %
2.7 V±2.0 %
2.8 V±2.0 %
2.9 V±2.0 %
3.0 V±2.0 %
3.1 V±2.0 %
3.2 V±2.0 %
3.3 V±2.0 %
3.4 V±2.0 %
3.5 V±2.0 %
3.6 V±2.0 %
3.7 V±2.0 %
3.8 V±2.0 %
3.9 V±2.0 %
SOT-23-5
S-814A20AMC-BCK-T2
S-814A21AMC-BCL-T2
S-814A22AMC-BCM-T2
S-814A23AMC-BCN-T2
S-814A24AMC-BCO-T2
S-814A25AMC-BCP-T2
S-814A26AMC-BCQ-T2
S-814A27AMC-BCR-T2
S-814A28AMC-BCS-T2
S-814A29AMC-BCT-T2
S-814A30AMC-BCU-T2
S-814A31AMC-BCV-T2
S-814A32AMC-BCW-T2
S-814A33AMC-BCX-T2
S-814A34AMC-BCY-T2
S-814A35AMC-BCZ-T2
S-814A36AMC-BDA-T2
S-814A37AMC-BDB-T2
S-814A38AMC-BDC-T2
S-814A39AMC-BDD-T2
SOT-89-3
S-814A30AUA-BCU-T2
S-814A33AUA-BCX-T2
SOT-89-5
S-814A20AUC-BCK-T2
S-814A21AUC-BCL-T2
S-814A22AUC-BCM-T2
S-814A23AUC-BCN-T2
S-814A24AUC-BCO-T2
S-814A25AUC-BCP-T2
S-814A26AUC-BCQ-T2
S-814A27AUC-BCR-T2
S-814A28AUC-BCS-T2
S-814A29AUC-BCT-T2
S-814A30AUC-BCU-T2
S-814A31AUC-BCV-T2
S-814A32AUC-BCW-T2
S-814A33AUC-BCX-T2
S-814A34AUC-BCY-T2
S-814A35AUC-BCZ-T2
S-814A36AUC-BDA-T2
S-814A37AUC-BDB-T2
S-814A38AUC-BDC-T2
S-814A39AUC-BDD-T2
Seiko Instruments Inc.
3
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-814 Series
Table 1 (2/2)
Rev.1.5
_00
Output voltage
SOT-23-5
SOT-89-3
SOT-89-5
S-814A40AMC-BDE-T2
S-814A40AUC-BDE-T2
4.0 V±2.0 %
S-814A41AMC-BDF-T2
S-814A41AUC-BDF-T2
4.1 V±2.0 %
S-814A42AMC-BDG-T2
S-814A42AUC-BDG-T2
4.2 V±2.0 %
S-814A43AMC-BDH-T2
S-814A43AUC-BDH-T2
4.3 V±2.0 %
S-814A44AMC-BDI-T2
S-814A44AUC-BDI-T2
4.4 V±2.0 %
S-814A45AMC-BDJ-T2
S-814A45AUC-BDJ-T2
4.5 V±2.0 %
S-814A46AMC-BDK-T2
S-814A46AUC-BDK-T2
4.6 V±2.0 %
S-814A47AMC-BDL-T2
S-814A47AUC-BDL-T2
4.7 V±2.0 %
S-814A48AMC-BDM-T2
S-814A48AUC-BDM-T2
4.8 V±2.0 %
S-814A49AMC-BDN-T2
S-814A49AUC-BDN-T2
4.9 V±2.0 %
S-814A50AMC-BDO-T2
S-814A50AUC-BDO-T2
5.0 V±2.0 %
S-814A51AMC-BDP-T2
S-814A51AUC-BDP-T2
5.1 V±2.0 %
S-814A52AMC-BDQ-T2
S-814A52AUC-BDQ-T2
5.2 V±2.0 %
S-814A53AMC-BDR-T2
S-814A53AUC-BDR-T2
5.3 V±2.0 %
S-814A54AMC-BDS-T2
S-814A54AUC-BDS-T2
5.4 V±2.0 %
S-814A55AMC-BDT-T2
S-814A55AUC-BDT-T2
5.5 V±2.0 %
S-814A56AMC-BDU-T2
S-814A56AUC-BDU-T2
5.6 V±2.0 %
S-814A57AMC-BDV-T2
S-814A57AUC-BDV-T2
5.7 V±2.0 %
S-814A58AMC-BDW-T2
S-814A58AUC-BDW-T2
5.8 V±2.0 %
S-814A59AMC-BDX-T2
S-814A59AUC-BDX-T2
5.9 V±2.0 %
S-814A60AMC-BDY-T2
S-814A60AUC-BDY-T2
6.0 V±2.0 %
Remark
Contact our sales person for products with an output voltage other than those specified above or
product type B.
4
Seiko Instruments Inc.
Rev.1.5
_00
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-814 Series
Pin Configurations
SOT-23-5
Top view
5
4
Table 2
Pin No.
Symbol
Pin description
1
VIN
Voltage input pin
2
VSS
GND pin
3
ON/OFF
Shutdown pin
*1
NC
4
No connection
5
VOUT
Voltage output pin
*1.
The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
1
2
Figure 3
3
SOT-89-3
Top view
Table 3
Pin No.
1
2
3
Symbol
VOUT
VSS
VIN
Pin description
Voltage output pin
GND pin
Voltage input pin
1
2
3
Figure 4
SOT-89-5
Top view
5
4
Table 4
Pin No.
Symbol
Pin description
1
VOUT
Voltage output pin
2
VSS
GND pin
*1
NC
3
No connection
4
ON/OFF
Shutdown pin
5
VIN
Voltage input pin
*1.
The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
1
2
3
Figure 5
Seiko Instruments Inc.
5
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