Overview
The UA78L12ACPK is a fixed-voltage linear regulator from Texas Instruments, part of the UA78L series. This regulator is designed to cater to a wide range of applications, including on-card regulation to eliminate noise and distribution problems associated with single-point regulation. It can also be used with power-pass elements to create high-current voltage regulators. The UA78L12ACPK is known for its stability and protection features, making it a reliable choice for various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range (VI) | 4.75 V to 35 V | V |
| Output Voltage (VO) | 12 V | V |
| Output Current (IO) | Up to 100 mA | mA |
| Quiescent Current (IQ) | 3.8 mA | mA |
| Operating Junction Temperature (TJ) | –40°C to +125°C | °C |
| Package Type | 3-pin SOT-89 | |
| Package Size | 4.5 mm × 2.5 mm | mm |
| Voltage Drop | 1.7 V | V |
| Ripple Rejection | 40 dB @ 120 Hz | dB |
Key Features
- Input voltage range: 4.75 V to 35 V
- Output voltage: 12 V
- Output current: Up to 100 mA
- Quiescent current: 3.8 mA
- Built-in short-circuit current limiting and thermal protection
- Stable operation without any external capacitor
- Operating temperature range: –40°C to +125°C
- Available in 3-pin SOT-89 package
Applications
- Motor drives
- Appliances
- Building automation
- Flow transmitters
- Factory automation and control
Q & A
- What is the input voltage range of the UA78L12ACPK? The input voltage range is 4.75 V to 35 V.
- What is the output voltage of the UA78L12ACPK? The output voltage is 12 V.
- What is the maximum output current of the UA78L12ACPK? The maximum output current is up to 100 mA.
- Does the UA78L12ACPK require an external capacitor for stable operation? No, it does not require an external capacitor for stable operation.
- What are the built-in protection features of the UA78L12ACPK? It has built-in short-circuit current limiting and thermal protection.
- What is the operating temperature range of the UA78L12ACPK? The operating temperature range is –40°C to +125°C.
- In what package is the UA78L12ACPK available? It is available in a 3-pin SOT-89 package.
- What is the voltage drop of the UA78L12ACPK? The voltage drop is 1.7 V.
- What is the ripple rejection of the UA78L12ACPK at 120 Hz? The ripple rejection is 40 dB @ 120 Hz.
- Can the UA78L12ACPK be used for high-current voltage regulators? Yes, it can be used with power-pass elements to make high-current voltage regulators.
