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TL1963AQKTTRQ1 Datenblatt(Datasheet) 1 Page - Texas Instruments

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Teile-Nr. TL1963AQKTTRQ1
Beschreibung  1.5-A LOW-NOISE FAST-TRANSIENT-RESPONSE LOW-DROPOUT REGULATOR
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Hersteller  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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GND
IN
SHDN
SENSE/ADJ
OUT
5
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TL1963A-Q1
www.ti.com
SLVSA79 – APRIL 2010
1.5-A LOW-NOISE FAST-TRANSIENT-RESPONSE LOW-DROPOUT REGULATOR
Check for Samples: TL1963A-Q1
1
FEATURES
Qualified for Automotive Applications
Reverse-Battery Protection
Optimized for Fast Transient Response
No Reverse Current
Output Current: 1.5 A
Thermal Limiting
Dropout Voltage: 340 mV
APPLICATIONS
Low Noise: 40 mVRMS (10 Hz to 100 kHz)
3.3-V to 2.5-V Logic Power Supplies
1-mA Quiescent Current
Post Regulator for Switching Supplies
No Protection Diodes Needed
KTT PACKAGE
Controlled Quiescent Current in Dropout
(TOP VIEW)
Fixed Output Voltages: 1.5 V, 1.8 V, 2.5 V,
and 3.3 V
Adjustable Output Voltage: 1.21 V to 20 V
Less Than 1-mA Quiescent Current in
Shutdown
Stable with 10-mF Output Capacitor
Stable with Ceramic Capacitors
DESCRIPTION/ORDERING INFORMATION
The TL1963A is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply
1.5 A of output current with a dropout voltage of 340 mV. Operating quiescent current is 1 mA, dropping to less
than 1 mA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other
regulators. In addition to fast transient response, the TL1963A regulators have very low output noise, which
makes them ideal for sensitive RF supply applications.
Output voltage range is from 1.21 V to 20 V. The TL1963A regulators are stable with output capacitors as low as
10 mF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other
regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and
reverse-current protection. The devices are available in fixed output voltages of 1.5 V, 1.8 V, 2.5 V, and 3.3 V,
and as an adjustable device with a 1.21-V reference voltage. The TL1963A regulators are available in the 5-pin
TO-263 (KTT), 6-pin TO-223 (DCQ), and 3-pin SOT-223 (DCY) packages.
ORDERING INFORMATION(1)
VOUT
TJ
PACKAGE(2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
(TYP)
1.5 V
TL1963A-15QKTTRQ1
PREVIEW
1.8 V
TL1963A-18QKTTRQ1Q1
PREVIEW
–40°C to 125°C
2.5 V
TO-263 – KTT
Reel of 500
TL1963A-25QKTTRQ1
PREVIEW
3.3 V
TL1963A-33QKTTRQ1
PREVIEW
ADJ
TL1963AQKTTRQ1
TL1963AQ
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2)
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.




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