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TL1963ADCQT Scheda tecnica(PDF) 1 Page - Texas Instruments

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Il numero della parte TL1963ADCQT
Spiegazioni elettronici  1.5-A LOW-NOISE FAST-TRANSIENT-RESPONSE LOW-DROPOUT REGULATOR
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

TL1963ADCQT Scheda tecnica(HTML) 1 Page - Texas Instruments

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1
3
2
GND
IN
SHDN
SENSE/ADJ
OUT
5
4
KTT PACKAGE
(TOP VIEW)
DCQ PACKAGE
(TOP VIEW)
1
3
2
GND
IN
SHDN
SENSE/ADJ
OUT
5
4
6
1
3
2
OUT
IN
GND
DCY PACKAGE
(TOP VIEW)
4
TL1963A-xx
www.ti.com........................................................................................................................................................ SLVS719E – JUNE 2008 – REVISED AUGUST 2009
1.5-A LOW-NOISE FAST-TRANSIENT-RESPONSE LOW-DROPOUT REGULATOR
1
FEATURES
2
Optimized for Fast Transient Response
Output Current: 1.5 A
Dropout Voltage: 340 mV
Low Noise: 40
μVRMS (10 Hz to 100 kHz)
1-mA Quiescent Current
No Protection Diodes Needed
Controlled Quiescent Current in Dropout
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-
μA Quiescent Current in
Shutdown
Stable with 10-
μF Output Capacitor
Stable with Ceramic Capacitors
Reverse-Battery Protection
No Reverse Current
Thermal Limiting
APPLICATIONS
3.3-V to 2.5-V Logic Power Supplies
Post Regulator for Switching Supplies
DESCRIPTION/ORDERING INFORMATION
The TL1963A-xx 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
μA 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-xx 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-xx regulators are stable with output capacitors as low
as 10
μF. 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-xx regulators are available in the
5-pin TO-263 (KTT), 6-pin TO-223 (DCQ), and 3-pin SOT-223 (DCY) packages.
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.
2
PowerPAD, PowerFLEX are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008–2009, 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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