Overview
The UA78M05IDCYR is a linear voltage regulator produced by Texas Instruments. This component is part of the UA78M series, designed to provide a stable 5V output voltage with a maximum current of 500mA. It is packaged in a SOT-223-4 format, making it suitable for a variety of applications where space is limited. The regulator is known for its simplicity and reliability, requiring no external components for stable operation across the load current range.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Input Voltage (Legacy Chip) | - | - | 35 | V |
| Input Voltage (New Chip) | - | - | 45 | V |
| Output Voltage | 4.8 | 5 | 5.2 | V |
| Output Current | - | - | 500 | mA |
| Junction Temperature | - | - | 150 | °C |
| Storage Temperature | -65 | - | 150 | °C |
| Dropout Voltage | - | - | 2.0 | V |
| Bias Current | 3.5 | 4.5 | 6 | mA |
Key Features
- Output Current: Up to 500mA.
- Output Voltage: Fixed 5V output voltage with a tolerance of 4.8V to 5.2V.
- Input Voltage Range: 7V to 30V for legacy chips and 7V to 30V for new chips, with an absolute maximum input voltage of 35V for legacy chips and 45V for new chips.
- No External Components Required: Stable operation across the load current range without the need for external capacitors.
- Package Type: SOT-223-4 format, which is compact and suitable for space-constrained applications.
- Operating Temperature Range: -40°C to 125°C).
- Ripple Rejection and Line Regulation: Good ripple rejection and line regulation characteristics, ensuring stable output voltage under varying input conditions).
Applications
- On-Card Voltage Regulation: Suitable for on-card voltage regulation in various electronic devices where a stable 5V supply is required).
- Embedded Systems: Used in embedded systems, industrial control systems, and other applications requiring a reliable and compact voltage regulator.
- Consumer Electronics: Found in consumer electronics such as audio equipment, medical devices, and other portable electronics.
- Automotive Systems: Can be used in automotive systems where a stable voltage supply is crucial.
Q & A
- What is the output voltage of the UA78M05IDCYR?
The output voltage is fixed at 5V with a tolerance of 4.8V to 5.2V).
- What is the maximum output current of the UA78M05IDCYR?
The maximum output current is 500mA).
- What is the input voltage range for the UA78M05IDCYR?
The input voltage range is 7V to 30V for both legacy and new chips, with an absolute maximum input voltage of 35V for legacy chips and 45V for new chips).
- Does the UA78M05IDCYR require external components for stable operation?
No, it does not require external components for stable operation across the load current range).
- What is the package type of the UA78M05IDCYR?
The package type is SOT-223-4).
- What is the operating temperature range of the UA78M05IDCYR?
The operating temperature range is -40°C to 125°C).
- What is the dropout voltage of the UA78M05IDCYR?
The dropout voltage is 2.0V).
- Is the UA78M05IDCYR RoHS compliant?
Yes, the UA78M05IDCYR is RoHS compliant).
- What are some typical applications of the UA78M05IDCYR?
Typical applications include on-card voltage regulation, embedded systems, consumer electronics, and automotive systems).
- What is the junction temperature limit of the UA78M05IDCYR?
The junction temperature limit is 150°C).
