S-1122 Seiko Instruments, S-1122 Datasheet

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S-1122

Manufacturer Part Number
S-1122
Description
9S-1112 / S-1122) HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Manufacturer
Seiko Instruments
Datasheet

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www.datasheet4u.com
Rev.5.1
HIGH RIPPLE-REJECTION AND LOW DROPOUT
CMOS VOLTAGE REGULATOR
Features
Applications
Packages
• Output voltage:
• High-accuracy output voltage:
• Low dropout voltage:
• Low current consumption:
• High peak current capability:
• Built-in ON/OFF circuit:
• Low ESR capacitor can be used: A ceramic capacitor of 0.47 µF or more can be used for the output
• High ripple rejection:
• Built-in overcurrent protector:
• Small package:
• Lead-free products
*1. Attention should be paid to the power dissipation of the package when the output current is large.
• Power supply for battery-powered devices
• Power supply for personal communication devices
• Power supply for home electric/electronic appliances
• Power supply for cellular phones
SNT-6A(H)
SOT-23-5
Package name
_00
MP005-A
Package
PI006-A
1.5 V to 5.5 V, selectable in 0.1 V steps.
±1.0%
190 mV typ. (3.0 V output product, I
During operation: 50 µA typ., 90 µA max.
During shutdown: 0.1 µA typ., 1.0 µA max.
150 mA output is possible (at V
Ensures long battery life.
capacitor.
80 dB typ. (at 1.0 kHz)
Overcurrent of output transistor can be restricted.
SNT-6A(H)(S-1112 series only), SOT-23-5
Seiko Instruments Inc.
MP005-A
The S-1112/1122 Series is a positive voltage
regulator with a low dropout voltage, high output
voltage accuracy, 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 protector prevents the load current
from exceeding the current capacitance of the output
transistor. An ON/OFF circuit ensures a long battery
life. Compared with the voltage regulators using the
conventional CMOS process, a larger variety of
capacitors are available, including small ceramic
capacitors. Small SNT-6A(H) (S-1112 Series only)
and
mounting. In SOT-23-5, the lineup includes the S-
1112 and S-1122 Series, which differ in pin
configuration.
PI006-A
Tape
SOT-23-5
Drawing code
IN
≥ V
OUT
packages
OUT(S)
MP005-A
PI006-A
S-1112/1122 Series
= 100 mA)
Reel
+ 1.0 V)
realize
*1
PI006-A
high-density
Land
1

Related parts for S-1122

S-1122 Summary of contents

Page 1

... Small SNT-6A(H) (S-1112 Series only) and SOT-23-5 mounting. In SOT-23-5, the lineup includes the S- 1112 and S-1122 Series, which differ in pin configuration. 1 5.5 V, selectable in 0.1 V steps. ±1.0% 190 mV typ. (3.0 V output product, I During operation: 50 µA typ., 90 µA max. ...

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... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR S-1112/1122 Series Block Diagram www.datasheet4u.com VIN ON/OFF VSS *1. Parasitic diode 2 Overcurrent protector + ON/OFF circuit − Reference voltage circuit Figure 1 Seiko Instruments Inc. Rev.5.1 _00 *1 VOUT ...

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... Product Name Structure • The product types and output voltage for the S-1112/1122 Series can be selected at the user’s request. Refer to the “Product name” for the meanings of the characters in the product name and “Product name list” for the full product names. ...

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... V ±1.0% 4.0 V ±1.0% 4.1 V ±1.0% 4.2 V ±1.0% 4.3 V ±1.0% 4.4 V ±1.0% 4.5 V ±1.0% 4.6 V ±1.0% 4.7 V ±1.0% 4.8 V ±1.0% 4.9 V ±1.0% 5.0 V ±1.0% 5.1 V ±1.0% 5.2 V ±1.0% 5.3 V ±1.0% 5.4 V ±1.0% 5.5 V ±1.0% Remark Please contact our sales office for type A products. 4 Table 1 SNT-6A(H) S-1112B15PI-L6ATFG S-1112B15MC-L6ATFG S-1112B16PI-L6BTFG S-1112B16MC-L6BTFG S-1112B17PI-L6CTFG S-1112B17MC-L6CTFG S-1112B18PI-L6DTFG S-1112B18MC-L6DTFG S-1112B19PI-L6ETFG S-1112B19MC-L6ETFG S-1112B20PI-L6FTFG S-1112B20MC-L6FTFG S-1112B21PI-L6GTFG ...

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... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.5.1 _00 3. Product name (S-1122 Series) S-1122 x www.datasheet4u.com *1. Refer to the taping specifications at the end of this book. *2. Refer to the product name list. *3. Refer to 3. Shutdown pin (ON/OFF pin) in the “ Operation” xxx TF Seiko Instruments Inc ...

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... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR S-1112/1122 Series 4. Product name list (S-1122 Series) www.datasheet4u.com Output Voltage 1.5 V ±1.0% 1.6 V ±1.0% 1.7 V ±1.0% 1.8 V ±1.0% 1.9 V ±1.0% 2.0 V ±1.0% 2.1 V ±1.0% 2.2 V ±1.0% 2.3 V ±1.0% 2.4 V ±1.0% 2.5 V ±1.0% 2.6 V ±1.0% 2.7 V ±1.0% 2.8 V ±1.0% 2.9 V ±1.0% 3.0 V ±1.0% 3.1 V ±1.0% 3.2 V ±1.0% 3.3 V ±1.0% 3.4 V ±1.0% 3.5 V ±1.0% 3.6 V ±1.0% 3.7 V ±1.0% 3.8 V ± ...

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... GND pin Shutdown pin Input voltage pin GND pin Output voltage pin Table 4 (S-1112 Series) Description Input voltage pin GND pin Shutdown pin No connection Output voltage pin Table 5 (S-1122 Series) Description Output voltage pin GND pin Input voltage pin Shutdown pin No connection 7 ...

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... Board size : 114.3 mm × 76.2 mm × t1.6 mm (2) Board name : JEDEC STANDARD51-7 Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. Figure 4 Power Dissipation of The Package (When Mounted on Board) ...

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... Specified output voltage *3. Output voltage temperature coefficient *5. The output current can be at least this value. Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power dissipation of the package when the output current is large. This specification is guaranteed by design. ...

Page 10

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR S-1112/1122 Series Test Circuits 1. www.datasheet4u.com VIN VOUT + V ON/OFF VSS Set to power ON Figure VIN VOUT ON/OFF VSS Set GND IN Figure 6 + VIN VOUT A ON/OFF VSS Set to power ON Figure 7 VOUT VIN + + A ON/OFF ...

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... Input VIN VOUT ON/OFF * VSS Single GND * capacitor for stabilizing the input. IN *2. A ceramic capacitor of 0.47 µ more can be used for C Figure 10 1.0 µ more 0.47 µ more 10 Ω or less Seiko Instruments Inc. S-1112/1122 Series Output * GND ...

Page 12

... ESR capacitor, such as a ceramic capacitor, for the output-side capacitor C ESR is 10 Ω or less can be used. 3. Output voltage (V ) OUT The accuracy of the output voltage is ensured at ± 1.0% under the specified conditions of fixed input *1 voltage , fixed output current, and fixed temperature. *1. Differs depending the product. ...

Page 13

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.5.1 _00 7. Temperatur e coefficien The shadowed area in Figure 11 is the range where V www.datasheet4u.com when the temperature coefficient of the output voltage is ± 100 ppm/ ° change in the temperature of the output voltage [mV/°C] is calculated using the following equation. ∆ V OUT [ ] 1 * ° ...

Page 14

... Operation 1. Basic operation Figure 12 shows the block diagram of the S-1112/1122 Series. www.datasheet4u.com The error amplifier compares the reference voltage (V divided by feedback resistors R to ensure a certain output voltage free of any fluctuations of input voltage and temperature. VIN Current supply Reference voltage VSS *1. Parasitic diode 2 ...

Page 15

... In addition, note that the current consumption increases if a voltage of 0 used, connect it to the VSS pin if the logic type is “A” and to the VIN pin “B”. Logic Type ON/OFF Pin A “ ...

Page 16

... VIN and VSS pins (C short as possible. • Note that the output voltage may increase when a series regulator is used at low load current (1 less). • Generally a series regulator may cause oscillation, depending on the selection of external parts. The following conditions are recommended for this IC. However, be sure to perform sufficient evaluation under the actual usage conditions for selection, including evaluation of temperature characteristics ...

Page 17

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.5.1 _00 Characteristics (Typical Data) Remark The following, which describes the S-1112 Series as the typical product, shows typical data common to the S-1122 Series. www.datasheet4u.com (1) Output Voltage vs. Output current (when load current increases) S-1112B15 (Ta = 25°C) 1.8 1 ...

Page 18

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR S-1112/1122 Series (3) Dropout voltage vs. Output current S-1112B15 0.45 www.datasheet4u.com 0.40 85°C 0.35 0.30 0.25 0.20 0.15 0.10 0. OUT S-1112B50 0.45 0.40 0.35 85°C 0.30 0.25 0.20 0.15 0.10 0. OUT (4) Dropout voltage vs. Set output voltage 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0. OTA 18 S-1112B30 25°C –40°C 100 150 200 [mA] 25° ...

Page 19

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.5.1 _00 (5) Output voltage vs. Ambient temperature S-1112B15 www.datasheet4u.com 1.60 1.55 1.50 1.45 1.40 –50 – [°C] S-1112B50 5.3 5.2 5.1 5.0 4.9 4.8 4.7 –50 – [°C] (6) Current consumption vs. Input voltage S-1112B15 120 100 80 25°C 60 85°C 40 –40° ...

Page 20

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR S-1112/1122 Series (7) Ripple rejection S-1112B15 (Ta = 25° 0.47 µ OUT www.datasheet4u.com 100 100 1k Frequency [Hz] S-1112B50 (Ta = 25° 6 0.47 µF IN OUT 100 100 ...

Page 21

... Input transient response characteristics S-1112B15 (Ta = 25°C) www.datasheet4u.com = 30 mA 5.0 µ OUT OUT 1.62 1.60 1. 1.56 1.54 1.52 V OUT 1.50 1.48 1.46 -40 - [µs] S-1112B50 (Ta = 25° mA 5.0 µ OUT OUT 5.12 5. 5.08 5.06 5.04 5.02 V OUT 5.00 4.98 4.96 -40 - [µs] (2) Load transient response characteristics S-1112B15 (Ta = 25° 0.47 µ 1.0 µ ...

Page 22

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR S-1112/1122 Series (3) Shutdown pin transient response characteristics S-1112B15 (Ta = 25° 2 0.47 µ 1.0 µF, I www.datasheet4u.com IN OUT ON/OFF OUT 0 –1 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 1.2 t [ms] 22 S-1112B30 (Ta = 25°C) = 100 4 OUT –1 – ...

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... Use of the information described herein for other purposes and/or reproduction or copying without the express permission of Seiko Instruments Inc. is strictly prohibited. The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc ...

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