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SC112 Datasheet(PDF) 1 Page - Semtech Corporation

Part No. SC112
Description  150mA ULTRA LOW DROPOUT MICROPOWER LINEAR REGULATOR
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Maker  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
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SC112 Datasheet(HTML) 1 Page - Semtech Corporation

   
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© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
150mA ULTRA LOW DROPOUT
MICROPOWER LINEAR REGULATOR
SC112
PRELIMINARY - July 25, 2000
1
DESCRIPTION
The SC112 is a 150mA ultra low dropout linear
regulator with a built in CMOS/TTL logic level enable,
designed specifically for battery powered applications
where low quiescent current and low dropout are
critical for battery longevity.
The SC112 uses a Semtech proprietary internal PNP
device for the pass element, providing a low dropout
voltage of 130mV at a load of 60mA.
The output noise is reduced to 30µV (typical) by
placing a very low leakage 10nF capacitor on pin 3
(noise bypass).
Each device contains a bandgap reference, error
amplifier, PNP pass element, thermal and current
limiting circuitry and resistor divider network for setting
output voltage.
The SC112 is packaged in a six lead SOT-23 surface
mount package for a very small footprint and it requires
only a 1µF capacitor on the output and a 0.01µF on the
bypass pin for a minimum number of external
components.
FEATURES
•= Low dropout voltage
•= CMOS/TTL compatible control switch
•= Very low quiescent current 60µA (ON, no load)
•= Internal thermal shutdown
•= Short circuit protection
•= Very low standby current 0.1µA maximum (OFF)
•= Low noise with external bypass capacitor
•= Industrial temperature range
APPLICATIONS
•= Battery powered systems
•= Cellular telephones
•= Cordless telephones
•= Pagers, personal digital assistants
•= Portable instrumentation
•= Low voltage systems
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DEVICE
(1)(2)
PACKAGE
SC112XXCSK.TR
6 pin SOT-23
ORDERING INFORMATION
Notes:
(1) Where XX denotes voltage options. Available volt-
ages are: 2.2V, 2.5V, 2.8V, 3.0V, 3.3V, 3.6V, 3.8V,
4.0V and 5.0V. Contact factory for additional voltage
options.
(2) Only available in tape and reel packaging. A reel
contains 3000 devices
TYPICAL APPLICATION CIRCUIT
VIN
VO
EN
U1
SC112
1
2
3
4
5
6
EN
GND
BYP
VO
GND
VIN
C1
10nF
C2
1uF
C3
1uF


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