Overview
The MC78M15BDTG is a 500 mA positive voltage regulator produced by onsemi. It is part of the MC78M00/MC78M00A Series, which are identical to the popular MC7800 Series devices but specified for half the output current. This regulator is designed for local, on-card voltage regulation and features internal current limiting, thermal shutdown circuitry, and safe-area compensation for the internal pass transistor, making it remarkably rugged under most operating conditions.
The MC78M15BDTG operates over an input voltage range of 17V to 35V and provides a stable 15V output with a maximum current of 500 mA. It is packaged in a TO-252 (DPAK) case, which is suitable for various power supply designs requiring minimal dropout voltage and excellent ripple rejection capabilities.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (VO) | 14.4 - 15.6 | Vdc |
| Output Current (IO) - Typical | 0.5 | A |
| Input Voltage Range (VI) | 17 - 35 | V |
| Dropout Voltage (VDO) - Typical | 2.0 | Vdc |
| Quiescent Current (Iq) - Typical | 3.2 | mA |
| Power Supply Rejection Ratio (PSRR) | 70 | dB |
| Noise | 90 | µVrms |
| Package/Case | TO-252 (DPAK) | |
| RoHS Status | Yes with Exemption |
Key Features
- No external components required for operation.
- Internal thermal overload protection and short circuit current limiting.
- Output transistor safe-area compensation.
- High accuracy (±2% for MC78M00A series).
- Polarity protected.
- Internal fault protection.
- High reliability design.
- Minimal dropout voltage and excellent ripple rejection capabilities.
Applications
The MC78M15BDTG is suitable for a variety of applications, including:
- Industrial power supply designs.
- Local, on-card voltage regulation in electronic devices.
- Systems requiring a clean and stable power supply with minimal noise and interference.
Q & A
- Q: What is the output voltage of the MC78M15BDTG?
A: The output voltage of the MC78M15BDTG is 15V, with a range of 14.4V to 15.6V.
- Q: What is the maximum output current of the MC78M15BDTG?
A: The maximum output current of the MC78M15BDTG is 500 mA.
- Q: What is the input voltage range for the MC78M15BDTG?
A: The input voltage range for the MC78M15BDTG is from 17V to 35V.
- Q: What is the dropout voltage of the MC78M15BDTG?
A: The typical dropout voltage of the MC78M15BDTG is 2.0 Vdc.
- Q: Does the MC78M15BDTG require external components for operation?
A: No, the MC78M15BDTG does not require external components for operation.
- Q: What kind of protection does the MC78M15BDTG have?
A: The MC78M15BDTG has internal thermal overload protection, short circuit current limiting, and polarity protection.
- Q: What is the package type of the MC78M15BDTG?
A: The MC78M15BDTG is packaged in a TO-252 (DPAK) case.
- Q: Is the MC78M15BDTG RoHS compliant?
A: Yes, the MC78M15BDTG is RoHS compliant with exemptions.
- Q: What is the typical quiescent current of the MC78M15BDTG?
A: The typical quiescent current of the MC78M15BDTG is 3.2 mA.
- Q: What is the warranty period for the MC78M15BDTG?
A: The warranty period for the MC78M15BDTG is typically 1 year, depending on the supplier.
