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PDF S-1122 Data sheet ( Hoja de datos )

Número de pieza S-1122
Descripción HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Fabricantes Seiko Instruments 
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S-1112/1122 Series
www.sii-ic.com
© Seiko Instruments Inc., 2002-2015
HIGH RIPPLE-REJECTION AND LOW DROPOUT
CMOS VOLTAGE REGULATOR
Rev.6.1_00
The S-1112/1122 Series is a positive voltage regulator with a low dropout voltage, high-accuracy output
voltage, and low current consumption developed based on CMOS technology.
A built-in low on-resistance transistor provides a low dropout voltage and large output current, and a built-in
overcurrent protection circuit prevents the load current from exceeding the current capacity of the output
transistor. An ON/OFF circuit ensures a long battery life. Compared with the voltage regulators using the
conventional CMOS technology, a larger variety of capacitors are available, including small ceramic capacitors.
Small SNT-6A(H) (S-1112 Series only) and SOT-23-5 packages realize high-density mounting. In SOT-23-5,
the lineup includes the S-1112 and S-1122 Series, which differ in pin configuration.
Features
Output voltage:
Output voltage accuracy:
Dropout voltage:
Current consumption:
Output current:
Output capacitor:
Ripple rejection:
Built-in overcurrent protection circuit:
Built-in ON/OFF circuit:
Operation temperature range:
Lead-free, Sn 100%, halogen-free*2
1.5 V to 5.5 V, selectable in 0.1 V step
±1.0%
190 mV typ. (3.0 V output product, IOUT = 100 mA)
During operation: 50 μA typ., 90 μA max.
During power-off: 0.1 μA typ., 1.0 μA max.
Possible to output 150 mA (VIN VOUT(S) + 1.0 V)*1
A ceramic capacitor of 0.47 μF or more can be used.
80 dB typ. (f = 1.0 kHz)
Limits overcurrent of output transistor.
Ensures long battery life.
Ta = 40°C to +85°C
*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
Constant-voltage power supply for battery-powered device
Constant-voltage power supply for personal communication device
Constant-voltage power supply for home electric/electronic appliance
Constant-voltage power supply for cellular phone
Packages
SNT-6A(H)
SOT-23-5
Seiko Instruments Inc.
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S-1122 pdf
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.6.1_00
S-1112/1122 Series
3. Product name lists
(1) S-1112 Series
Table 1
Output Voltage
SNT-6A(H)
SOT-23-5
1.5 V ±1.0%
S-1112B15PI-L6ATFU S-1112B15MC-L6ATFx
1.6 V ±1.0%
S-1112B16PI-L6BTFU S-1112B16MC-L6BTFx
1.7 V ±1.0%
S-1112B17PI-L6CTFU S-1112B17MC-L6CTFx
1.8 V ±1.0%
S-1112B18PI-L6DTFU S-1112B18MC-L6DTFx
1.9 V ±1.0%
S-1112B19PI-L6ETFU S-1112B19MC-L6ETFx
2.0 V ±1.0%
S-1112B20PI-L6FTFU S-1112B20MC-L6FTFx
2.1 V ±1.0%
S-1112B21PI-L6GTFU S-1112B21MC-L6GTFx
2.2 V ±1.0%
S-1112B22PI-L6HTFU S-1112B22MC-L6HTFx
2.3 V ±1.0%
S-1112B23PI-L6ITFU
S-1112B23MC-L6ITFx
2.4 V ±1.0%
S-1112B24PI-L6JTFU S-1112B24MC-L6JTFx
2.5 V ±1.0%
S-1112B25PI-L6KTFU S-1112B25MC-L6KTFx
2.6 V ±1.0%
S-1112B26PI-L6LTFU S-1112B26MC-L6LTFx
2.7 V ±1.0%
S-1112B27PI-L6MTFU S-1112B27MC-L6MTFx
2.8 V ±1.0%
S-1112B28PI-L6NTFU S-1112B28MC-L6NTFx
2.85 V ±1.0%
S-1112B2JPI-L7PTFU S-1112B2JMC-L7PTFx
2.9 V ±1.0%
S-1112B29PI-L6OTFU S-1112B29MC-L6OTFx
3.0 V ±1.0%
S-1112B30PI-L6PTFU S-1112B30MC-L6PTFx
3.1 V ±1.0%
S-1112B31PI-L6QTFU S-1112B31MC-L6QTFx
3.2 V ±1.0%
S-1112B32PI-L6RTFU S-1112B32MC-L6RTFx
3.3 V ±1.0%
S-1112B33PI-L6STFU S-1112B33MC-L6STFx
3.4 V ±1.0%
S-1112B34PI-L6TTFU S-1112B34MC-L6TTFx
3.5 V ±1.0%
S-1112B35PI-L6UTFU S-1112B35MC-L6UTFx
3.6 V ±1.0%
S-1112B36PI-L6VTFU S-1112B36MC-L6VTFx
3.7 V ±1.0%
S-1112B37PI-L6WTFU S-1112B37MC-L6WTFx
3.8 V ±1.0%
S-1112B38PI-L6XTFU S-1112B38MC-L6XTFx
3.9 V ±1.0%
S-1112B39PI-L6YTFU S-1112B39MC-L6YTFx
4.0 V ±1.0%
S-1112B40PI-L6ZTFU S-1112B40MC-L6ZTFx
4.1 V ±1.0%
S-1112B41PI-L7ATFU S-1112B41MC-L7ATFx
4.2 V ±1.0%
S-1112B42PI-L7BTFU S-1112B42MC-L7BTFx
4.3 V ±1.0%
S-1112B43PI-L7CTFU S-1112B43MC-L7CTFx
4.4 V ±1.0%
S-1112B44PI-L7DTFU S-1112B44MC-L7DTFx
4.5 V ±1.0%
S-1112B45PI-L7ETFU S-1112B45MC-L7ETFx
4.6 V ±1.0%
S-1112B46PI-L7FTFU S-1112B46MC-L7FTFx
4.7 V ±1.0%
S-1112B47PI-L7GTFU S-1112B47MC-L7GTFx
4.8 V ±1.0%
S-1112B48PI-L7HTFU S-1112B48MC-L7HTFx
4.9 V ±1.0%
S-1112B49PI-L7ITFU
S-1112B49MC-L7ITFx
5.0 V ±1.0%
S-1112B50PI-L7JTFU S-1112B50MC-L7JTFx
5.1 V ±1.0%
S-1112B51PI-L7KTFU S-1112B51MC-L7KTFx
5.2 V ±1.0%
S-1112B52PI-L7LTFU S-1112B52MC-L7LTFx
5.3 V ±1.0%
S-1112B53PI-L7MTFU S-1112B53MC-L7MTFx
5.4 V ±1.0%
S-1112B54PI-L7NTFU S-1112B54MC-L7NTFx
5.5 V ±1.0%
S-1112B55PI-L7OTFU S-1112B55MC-L7OTFx
Remark 1. Please contact our sales office for type A products.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
Seiko Instruments Inc.
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S-1122 arduino
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.6.1_00
S-1112/1122 Series
Standard Circuit
Input
CIN*1
VIN VOUT
ON/OFF
VSS
Output
CL*2
Single GND
GND
*1. CIN is a capacitor for stabilizing the input.
*2. A ceramic capacitor of 0.47 μF or more can be used for CL.
Figure 10
Caution The above connection diagram and constant will not guarantee successful operation.
Perform thorough evaluation using the actual application to set the constant.
Condition of Application
Input capacitor (CIN):
Output capacitor (CL):
ESR of output capacitor:
1.0 μF or more
0.47 μF or more
10 Ω or less
Caution Generally a series regulator may cause oscillation, depending on the selection of external
parts. Check that no oscillation occurs with the application using the above capacitor.
Seiko Instruments Inc.
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