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S-1112 Datasheet PDF Download - Seiko Instruments

Номер произв S-1112
Описание HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Производители Seiko Instruments
логотип Seiko Instruments логотип 
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S-1112 Даташит, Описание, Даташиты
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.
1
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S-1112 Даташит, Описание, Даташиты
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1112/1122 Series
Rev.6.1_00
Block Diagram
VIN
*1
VOUT
Overcurrent
protection circuit
ON/OFF
ON/OFF
circuit
+
Reference
voltage circuit
VSS
*1. Parasitic diode
Figure 1
2 Seiko Instruments Inc.
--------------------------------------------

No Preview Available !

S-1112 Даташит, Описание, Даташиты
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.6.1_00
S-1112/1122 Series
Product Name Structure
Users can select the product type, output voltage, and package type for the S-1112/1122 Series. Refer to
1. Product name” regarding the contents of product name, “2. Packages” regarding the package
drawings, “3. Product name lists” regarding details of product name.
1. Product name
(1) SNT-6A(H) for S-1112 Series
S-1112 x xx PI - xxx TF U
Environmental code
U: Lead-free (Sn 100%), halogen-free
IC direction in tape specifications*1
Product name (abbreviation)*2
Package name (abbreviation)
PI : SNT-6A(H)
Output voltage
15 to 55
(E.g., when the output voltage is 1.5 V,
it is expressed as 15.)
Product type*3
A: ON/OFF pin negative logic
B: ON/OFF pin positive logic
(2) SOT-23-5 for S-1112 Series
S-1112 x xx MC - xxx TF 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
Output voltage
15 to 55
(E.g., when the output voltage is 1.5 V,
it is expressed as 15.)
Product type*3
A: ON/OFF pin negative logic
B: ON/OFF pin positive logic
*1. Refer to the tape drawing.
*2. Refer to the product name lists.
*3. Refer to “3. ON/OFF pin” in “Operation”.
Seiko Instruments Inc.
3
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