Overview
The MC78M09CDTRKG is a 9.0 V positive voltage regulator from onsemi, part of the MC78M00 series. This three-terminal regulator is designed for local, on-card voltage regulation and is specified for an output current of up to 500 mA. It is similar to the MC7800 series but with half the output current. The device features internal current limiting, thermal shutdown circuitry, and safe-area compensation for the internal pass transistor, making it robust under various operating conditions.
Key Specifications
| Characteristics | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 8.64 | 9.0 | 9.45 | Vdc |
| Output Voltage Variation (11.5 Vdc ≤ VI ≤ 23 Vdc, 5.0 mA ≤ IO ≤ 350 mA) | VO | 8.55 | - | 9.45 | Vdc |
| Line Regulation (TJ = 25°C, 11.5 Vdc ≤ VI ≤ 25 Vdc, IO = 200 mA) | Regline | - | 6.0 | 50 | mV |
| Load Regulation (TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA) | Regload | - | - | 25 | mV |
| Dropout Voltage (TJ = 25°C) | VI−VO | - | 2.0 | - | Vdc |
| Short Circuit Current Limit (TJ = 25°C, VI = 35 V) | IOS | - | 350 | - | mA |
| Average Temperature Coefficient of Output Voltage (IO = 5.0 mA) | �VO/�T | - | ±0.2 | - | mV/°C |
| Peak Output Current (TJ = 25°C) | IO | - | 700 | - | mA |
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.
- ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015, and Machine Model Method 200 V.
Applications
The MC78M09CDTRKG is suitable for various applications requiring stable voltage regulation, including:
- Local, on-card voltage regulation in electronic devices.
- Automotive and industrial systems where robust voltage regulation is necessary.
- Consumer electronics requiring reliable power supply.
- Medical devices and equipment needing precise voltage control.
Q & A
- What is the maximum output current of the MC78M09CDTRKG?
The maximum output current is 500 mA with adequate heatsinking.
- What is the output voltage of the MC78M09CDTRKG?
The output voltage is 9.0 V with a variation of 8.64 V to 9.45 V at TJ = 25°C.
- Does the MC78M09CDTRKG require external components for operation?
No, it does not require any external components for operation.
- What is the dropout voltage of the MC78M09CDTRKG?
The dropout voltage is 2.0 Vdc at TJ = 25°C.
- What is the short circuit current limit of the MC78M09CDTRKG?
The short circuit current limit is 350 mA at TJ = 25°C and VI = 35 V.
- What is the average temperature coefficient of output voltage?
The average temperature coefficient of output voltage is ±0.2 mV/°C at IO = 5.0 mA.
- Does the MC78M09CDTRKG have ESD protection?
Yes, it has ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015, and Machine Model Method 200 V.
- What is the peak output current of the MC78M09CDTRKG?
The peak output current is 700 mA at TJ = 25°C.
- What are the operating temperature ranges for the MC78M09CDTRKG?
The operating temperature ranges are from -40°C to +125°C for the MC78MxxAB and NCV78MxxAB models.
- What are some common applications for the MC78M09CDTRKG?
Common applications include local, on-card voltage regulation in electronic devices, automotive and industrial systems, consumer electronics, and medical devices.
