Overview
The UA78M05CDCY is a fixed-voltage, integrated-circuit voltage regulator produced by Texas Instruments. This device is part of the UA78M series, designed to support a wide range of applications requiring stable voltage regulation. The UA78M05CDCY is specifically configured to provide an output voltage of 5V. It is known for its robust features, including internal current-limiting and thermal shutdown mechanisms, which ensure reliable operation across various input voltage ranges and load conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range (VIN) | 5.3V to 35V (Legacy Chip), 5.3V to 45V (New Chip) | V |
| Output Voltage (VOUT) | 5V | V |
| Output Current (IOUT) | Up to 500mA | mA |
| Quiescent Current (IQ) | 4.5mA | mA |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Types | 3-pin SOT-223, 3-pin TO-252 | |
| Dropout Voltage | 2.0V | V |
| Peak Output Current | 700mA | mA |
| Short-Circuit Output Current | 270mA (at VIN = 35V) | mA |
Key Features
- Internal current-limiting and thermal shutdown mechanisms for protection against high-load current faults and overheating.
- Stable operation without any external components.
- Wide input voltage range: 5.3V to 35V (Legacy Chip), 5.3V to 45V (New Chip).
- Output voltage regulation with minimal line and load regulation.
- High ripple rejection ratio.
- Low output noise voltage.
- Operating temperature range: –40°C to +125°C.
Applications
- On-board charging systems.
- Washers and dryers.
- Residential lighting systems.
- Battery backup units (BBU).
- Air conditioner outdoor units.
Q & A
- What is the output voltage of the UA78M05CDCY?
The output voltage of the UA78M05CDCY is 5V.
- What is the maximum output current of the UA78M05CDCY?
The maximum output current is up to 500mA.
- What are the input voltage ranges for the UA78M05CDCY?
The input voltage range is 5.3V to 35V for Legacy Chips and 5.3V to 45V for New Chips.
- Does the UA78M05CDCY require external components for stable operation?
No, the UA78M05CDCY is stable without any external components.
- What are the protection features of the UA78M05CDCY?
The device features internal current-limiting and thermal shutdown mechanisms.
- What is the operating temperature range of the UA78M05CDCY?
The operating temperature range is –40°C to +125°C.
- What are the package types available for the UA78M05CDCY?
The device is available in 3-pin SOT-223 and 3-pin TO-252 packages.
- What is the dropout voltage of the UA78M05CDCY?
The dropout voltage is 2.0V.
- What is the peak output current of the UA78M05CDCY?
The peak output current is 700mA.
- What is the short-circuit output current of the UA78M05CDCY?
The short-circuit output current is 270mA at VIN = 35V.
