Overview
The TL1963ADCQT is a high-performance, low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. Designed for applications requiring fast transient response and low noise, this regulator is capable of delivering up to 1.5 A of output current with a dropout voltage of 340 mV. It is available in a compact SOT-223-6 package, making it suitable for space-constrained designs. The TL1963ADCQT is ideal for powering sensitive analog and digital circuits, particularly in RF and communication systems, due to its excellent noise performance and stability with low-ESR ceramic capacitors.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Current | 1.5 | A | Maximum |
| Input Voltage | Up to 20 | V | Maximum |
| Output Voltage Range | 1.21 to 20 | V | Adjustable |
| Dropout Voltage | 0.34 | V | @ 1.5 A |
| Quiescent Current | 1 | mA | Typical |
| PSRR | 63 | dB | @ 120 Hz |
| Operating Temperature | -40 to 125 | °C | |
| Package | SOT-223-6 | Surface Mount |
Key Features
- Fast transient response for dynamic load conditions.
- Low output noise, ideal for RF and sensitive analog circuits.
- Stable with low-ESR ceramic capacitors (≥10 µF).
- Internal protection features include reverse current, thermal shutdown, and current limiting.
- Adjustable output voltage with a 1.21 V reference.
Applications
The TL1963ADCQT is widely used in various applications, including:
- RF and Communication Systems: Provides clean and stable power for sensitive RF components.
- Industrial Automation: Suitable for powering control systems and sensors.
- Consumer Electronics: Ideal for portable devices and audio/video equipment.
- Automotive Electronics: Used in infotainment systems and onboard sensors.
Q & A
1. What is the maximum output current of the TL1963ADCQT?
The TL1963ADCQT can deliver up to 1.5 A of output current.
2. What is the input voltage range for this regulator?
The input voltage can range up to 20 V.
3. Is the output voltage adjustable?
Yes, the output voltage is adjustable from 1.21 V to 20 V.
4. What is the dropout voltage at 1.5 A?
The dropout voltage is 0.34 V at 1.5 A.
5. Can this regulator operate with ceramic capacitors?
Yes, it is stable with low-ESR ceramic capacitors of 10 µF or greater.
6. What protection features are included?
It includes reverse current protection, thermal shutdown, and current limiting.
7. What is the quiescent current of the TL1963ADCQT?
The quiescent current is typically 1 mA.
8. What is the PSRR of this regulator?
The PSRR is 63 dB at 120 Hz.
9. What is the operating temperature range?
It operates from -40°C to 125°C.
10. What package does the TL1963ADCQT come in?
It is available in a SOT-223-6 surface-mount package.
