Overview
The UA78M05CDCYR is a fixed-voltage, integrated-circuit voltage regulator produced by Texas Instruments. This device is designed for a wide range of applications, offering reliable and stable voltage regulation. The UA78M series supports a broad input voltage range and delivers up to 500mA of load current, making it suitable for various power supply needs. The regulator features internal current-limiting and thermal shutdown mechanisms to protect against overload and high-temperature conditions. It operates across an ambient temperature range of –40°C to +125°C, ensuring robust performance in diverse environments.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range (VIN) | 5.3 | - | 35 | V |
| Output Voltage (VOUT) | 4.8 | 5 | 5.2 | V |
| Output Current (IOUT) | - | - | 500 | mA |
| Quiescent Current (IQ) | 4.5 | - | 6 | mA |
| Operating Temperature Range | -40 | - | 125 | °C |
| Dropout Voltage | - | - | 2.0 | V |
| Output Noise Voltage | - | - | 45 | μV |
| Short-Circuit Output Current | - | - | 270 | mA |
| Peak Output Current | - | - | 700 | mA |
| Package | - | - | SOT-223 (3-pin), TO-252 (3-pin) | - |
Key Features
- Input voltage range: 5.3V to 35V
- Output voltage range: 3.3V to 12V (specifically 5V for UA78M05)
- Output current up to 500mA
- Internal current-limiting and thermal shutdown protection
- Stable operation without external components
- Operating temperature range: –40°C to +125°C
- Available in SOT-223 and TO-252 packages
Applications
- On-board charging systems
- Washers and dryers
- Residential lighting
- Battery backup units (BBU)
- Air conditioner outdoor units
Q & A
- What is the input voltage range of the UA78M05CDCYR?
The input voltage range is from 5.3V to 35V.
- What is the output voltage of the UA78M05CDCYR?
The output voltage is 5V.
- What is the maximum output current of the UA78M05CDCYR?
The maximum output current is up to 500mA.
- Does the UA78M05CDCYR require external components for stable operation?
No, it does not require external components for stable operation.
- What are the protection features of the UA78M05CDCYR?
The device features internal current-limiting and thermal shutdown protection.
- What are the available package types for the UA78M05CDCYR?
The device is available in SOT-223 and TO-252 packages.
- What is the operating temperature range of the UA78M05CDCYR?
The operating temperature range is –40°C to +125°C.
- What are some typical applications of the UA78M05CDCYR?
Typical applications include on-board charging, residential lighting, battery backup units, and air conditioner outdoor units.
- How does the UA78M05CDCYR protect against high-load current faults?
The device has an internal current-limit circuit that limits the output current during high-load current faults or shorting events.
- What is the dropout voltage of the UA78M05CDCYR?
The dropout voltage is 2.0V.
