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TL1963A

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1.5-A, 20-V, low-dropout voltage regulator with reverse current & reverse voltage protection

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Data sheet

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Same functionality with different pin-out to the compared device
TL1963A-Q1 ACTIVE Automotive 1.5-A, 20-V, adjustable low-dropout voltage regulator with reverse current protection AEC-Q100 qualified alternative product

TL1963A

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 1.5 Vin (max) (V) 20 Vin (min) (V) 2.1 Vout (max) (V) 20 Vout (min) (V) 1.2 Fixed output options (V) 1.5, 1.8, 2.5, 3.3 Noise (µVrms) 40 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 33 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Reverse Current Protection, Reverse voltage protection Accuracy (%) 3 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 340 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 1.5 Vin (max) (V) 20 Vin (min) (V) 2.1 Vout (max) (V) 20 Vout (min) (V) 1.2 Fixed output options (V) 1.5, 1.8, 2.5, 3.3 Noise (µVrms) 40 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 33 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Reverse Current Protection, Reverse voltage protection Accuracy (%) 3 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 340 Operating temperature range (°C) -40 to 125
SOT-223 (DCQ) 6 45.89 mm² 6.5 x 7.06 SOT-223 (DCY) 4 45.5 mm² 6.5 x 7 TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • 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, 3.3 V
  • Adjustable Output from 1.21 V to 20 V (TL1963A Only)
  • Less Than 1-µA Quiescent Current in Shutdown
  • Stable With 10-µF Ceramic Output Capacitor
  • Reverse-Battery Protection
  • Reverse-Current Protection
  • APPLICATIONS
    • Industrial
    • Wireless Infrastructure
    • Radio-Frequency Systems
    • 3.3-V to 2.5-V Logic Power Supplies
    • Post Regulator for Switching Supplies

All other trademarks are the property of their respective owners
  • 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, 3.3 V
  • Adjustable Output from 1.21 V to 20 V (TL1963A Only)
  • Less Than 1-µA Quiescent Current in Shutdown
  • Stable With 10-µF Ceramic Output Capacitor
  • Reverse-Battery Protection
  • Reverse-Current Protection
  • APPLICATIONS
    • Industrial
    • Wireless Infrastructure
    • Radio-Frequency Systems
    • 3.3-V to 2.5-V Logic Power Supplies
    • Post Regulator for Switching Supplies

All other trademarks are the property of their respective owners

The TL1963A-xx devices are low-dropout (LDO) regulators 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 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 capacitance 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, 3.3 V, and as an adjustable device with a 1.21-V reference voltage.

The TL1963A-xx devices are low-dropout (LDO) regulators 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 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 capacitance 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, 3.3 V, and as an adjustable device with a 1.21-V reference voltage.
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Type Title Date
* Data sheet TL1963A-xx 1.5-A Low-Noise Fast-Transient-Response Low-Dropout Regulator datasheet (Rev. G) PDF | HTML 14 Jan 2015
Application note Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) 07 Apr 2021
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
Test report TI Power Reference Design for Xilinx® Kintex®-7 (KC705) (Rev. A) 16 Dec 2014
Test report TI Power Reference Design for Xilinx® Artix®-7 (AC701) 12 May 2014
User guide PMP7977 User's Guide 11 Sep 2013
EVM User's guide TL1963EVM-384 (Rev. A) 08 Oct 2008

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