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Linear & low-dropout (LDO) regulators

TL1963A-Q1

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

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Data sheet

TL1963A-Q1

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 20 Vin (min) (V) 2.1 Vout (max) (V) 20 Vout (min) (V) 1.2 Rating Automotive Noise (µVrms) 40 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 33 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Reverse Current Protection, Reverse voltage protection Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 340 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 20 Vin (min) (V) 2.1 Vout (max) (V) 20 Vout (min) (V) 1.2 Rating Automotive Noise (µVrms) 40 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 33 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Reverse Current Protection, Reverse voltage protection Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 340 Operating temperature range (°C) -40 to 125
TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • 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 Required
  • 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
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • 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 Required
  • 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

The TL1963A-Q1 device 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-Q1 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-Q1 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-Q1 regulators are available in the 5-pin TO-263 (KTT) package.

The TL1963A-Q1 device 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-Q1 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-Q1 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-Q1 regulators are available in the 5-pin TO-263 (KTT) package.
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Type Title Date
* Data sheet TL1963A-Q1 1.5-A Low-Noise Fast-Transient-Response Low-Dropout Regulator datasheet (Rev. A) PDF | HTML 30 Sep 2016
Functional safety information TL1963A-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 17 Jul 2024

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