S-1112B49MC-L7ITFG Seiko Instruments, S-1112B49MC-L7ITFG Datasheet

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S-1112B49MC-L7ITFG

Manufacturer Part Number
S-1112B49MC-L7ITFG
Description
IC REG LDO 150MA 4.9V SOT23-5
Manufacturer
Seiko Instruments
Datasheet

Specifications of S-1112B49MC-L7ITFG

Regulator Topology
Positive Fixed
Voltage - Output
4.9V
Voltage - Input
Up to 6.5V
Voltage - Dropout (typical)
0.19V @ 100mA
Number Of Regulators
1
Current - Output
150mA (Min)
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
www.sii-ic.com
© Seiko Instruments Inc., 2002-2010
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 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
Applications
Packages
*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.
• 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:
• Lead-free, Sn 100%, halogen-free
• 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
*2
190 mV typ. (3.0 V output product, I
During operation: 50 μA typ., 90 μA max.
150 mA output is possible (at V
1.5 V to 5.5 V, selectable in 0.1 V steps.
±1.0%
During shutdown:
Ensures long battery life.
capacitor.
80 dB typ. (at 1.0 kHz)
Overcurrent of output transistor can be restricted.
HIGH RIPPLE-REJECTION AND LOW DROPOUT
Seiko Instruments Inc.
0.1 μA typ., 1.0 μA max.
CMOS VOLTAGE REGULATOR
S-1112/1122 Series
IN
≥ V
OUT
OUT(S)
= 100 mA)
+ 1.0 V)
*1
Rev.6.0
_00
1

Related parts for S-1112B49MC-L7ITFG

S-1112B49MC-L7ITFG Summary of contents

Page 1

... 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: • Lead-free, Sn 100%, halogen-free *1. Attention should be paid to the power dissipation of the package when the output current is large. *2. Refer to “ ...

Page 2

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR S-1112/1122 Series Block Diagram VIN ON/OFF VSS *1. Parasitic diode 2 Overcurrent protector + ON/OFF − circuit Reference voltage circuit Figure 1 Seiko Instruments Inc. Rev.6.0 _00 *1 VOUT ...

Page 3

... The product types and output voltage for the S-1112/1122 Series can be selected at the user’s request. Refer to the “1. Product Name” for the construction of the product name, “2. Package” regarding the package drawings and “3. Product Name List” for the full product names. ...

Page 4

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR S-1112/1122 Series (2) S-1122 Series S-1122 − xxx TF x *1. Refer to the tape 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”. 2. Package Package name SNT-6A(H) SOT-23-5 4 ...

Page 5

... S-1112B51PI-L7KTFx 5.2 V ±1.0% S-1112B52PI-L7LTFx 5.3 V ±1.0% S-1112B53PI-L7MTFx 5.4 V ±1.0% S-1112B54PI-L7NTFx 5.5 V ±1.0% S-1112B55PI-L7OTFx Remark 1. Please contact our sales office for type A products Please select products of environmental code = U for Sn 100%, halogen-free products. Table 1 SNT-6A(H) SOT-23-5 S-1112B15MC-L6ATFx S-1112B16MC-L6BTFx S-1112B17MC-L6CTFx S-1112B18MC-L6DTFx S-1112B19MC-L6ETFx S-1112B20MC-L6FTFx S-1112B21MC-L6GTFx ...

Page 6

... 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 1. Please contact our sales office for type A products Please select products of environmental code = U for Sn 100%, halogen-free products. 6 Table 2 SOT-23-5 S-1122B15MC-L8ATFx S-1122B16MC-L8BTFx S-1122B17MC-L8CTFx S-1122B18MC-L8DTFx S-1122B19MC-L8ETFx S-1122B20MC-L8FTFx ...

Page 7

... Pin No. Symbol 1 VOUT 2 VSS 3 VIN 4 ON/OFF * *1. The NC pin is electrically open. The NC pin can be connected to VIN or VSS. Seiko Instruments Inc. S-1112/1122 Series Table 3 (S-1112 Series) Description No connection GND pin Shutdown pin Input voltage pin GND pin Output voltage pin Table 4 (S-1112 Series) ...

Page 8

... 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) ...

Page 9

... 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. Set to power VIN VOUT + V ON/OFF VSS 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 V VSS Figure 8 VIN VOUT + V ON/OFF ...

Page 11

... Check that no oscillation occurs with the application using the above capacitor. Input VIN VOUT *1 ON/OFF C IN VSS Single GND * capacitor for stabilizing the input. IN *2. A ceramic capacitor of 0.47 μF or more can be used for C Figure 10 1.0 μF or more 0.47 μF or more 10 Ω or less Seiko Instruments Inc. S-1112/1122 Series Output * GND . ...

Page 12

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR S-1112/1122 Series Explanation of Terms 1. Low dropout voltage regulator The low dropout voltage regulator is a voltage regulator whose dropout voltage is low due to its built-in low on-resistance transistor. 2. Low ESR A capacitor whose ESR (Equivalent Series Resistance) is low. The S-1112/1122 Series enables use of a low ESR capacitor, such as a ceramic capacitor, for the output-side capacitor C ESR is 10 Ω ...

Page 13

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.6.0 _00 7. Temperatur e coefficien t of The shadowed area in Figure 11 is the range where V when the temperature coefficient of the output voltage is ±100 ppm/°C. V OUT(E) * change in the temperature of the output voltage [mV/°C] is calculated using the following equation. Δ OUT 1 * ° OUT(S) Δ ...

Page 14

... S-1112/1122 Series Operation 1. Basic operation Figure 12 shows the block diagram of the S-1112/1122 Series. 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 V ref Reference voltage VSS *1 ...

Page 15

... The structure of the ON/OFF pin is as shown in Figure 13. Since the ON/OFF pin is neither pulled down nor pulled up internally, do not use it in the floating state. 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

... When mounting an output capacitor between the VOUT and VSS pins (C the input between 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 ...

Page 17

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.6.0 _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. (1) Output Voltage vs. Output current (when load current increases) S-1112B15 (Ta = 25°C) 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 0.40 85°C 0.35 0.30 0.25 0.20 0.15 0.10 0. 100 I [mA] OUT S-1112B50 0.45 0.40 0.35 85°C 0.30 0.25 0.20 0.15 0.10 0. 100 I [mA] OUT (4) Dropout voltage vs. Set output voltage ...

Page 19

... HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.6.0 _00 (5) Output voltage vs. Ambient temperature S-1112B15 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 Ta [°C] (6) Current consumption vs. Input voltage S-1112B15 120 100 80 25° ...

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 100 100 1k 10k Frequency [Hz] S-1112B50 (Ta = 25° 0.47 μ OUT 100 100 1k 10k Frequency [Hz] 20 S-1112B30 (Ta = 25° 100 = OUT 100k OUT 100k 1M Seiko Instruments Inc ...

Page 21

... C I OUT OUT 1.62 1.60 1. 1.56 1.54 1.52 V OUT 1.50 1.48 1.46 -40 - 100 120 140 160 t [μs] S-1112B50 (Ta = 25° mA 5.0 μ 0.47 μ OUT OUT 5.12 5. 5.08 5.06 5.04 5.02 V OUT 5.00 4.98 4.96 -40 - 100 120 140 160 t [μs] (2) Load transient response characteristics S-1112B15 (Ta = 25° ...

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° 0.47 μ 1.0 μ 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 OUT ...

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... 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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