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TL1963A-18QKTTRQ1Q1 데이터시트(PDF) 1 Page - Texas Instruments |
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TL1963A-18QKTTRQ1Q1 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 23 page 1 3 2 GND IN SHDN SENSE/ADJ OUT 5 4 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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