Overview
The MC78M05CDT-001 is a three-terminal positive voltage regulator from Onsemi, part of the MC78M00 series. This device 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 MC78M05CDT-001 is available in various voltage options, including 5.0 V, and is known for its robustness and reliability under most operating conditions.
Key Specifications
| Characteristics | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 4.8 | 5.0 | 5.2 | Vdc |
| Output Voltage Variation (7.0 Vdc ≤ VI ≤ 20 Vdc, 5.0 mA ≤ IO ≤ 350 mA) | VO | 4.9 | - | 5.1 | Vdc |
| 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
- Internal Thermal Overload Protection
- Internal Short Circuit Current Limiting
- Output Transistor Safe-Area Compensation
- High Accuracy (±2%) for MC78M00A series
- ESD Protection: Exceeds Human Body Model 2000 V per MIL-STD-883, Method 3015
Applications
The MC78M05CDT-001 is suitable for a variety of applications requiring local voltage regulation, including:
- On-card voltage regulation in electronic devices
- Automotive systems (NCV prefix models)
- Industrial control systems
- Consumer electronics
- Telecommunication equipment
Q & A
- What is the maximum output current of the MC78M05CDT-001?
The maximum output current is 500 mA with adequate heatsinking.
- What are the key protection features of this regulator?
The regulator features internal thermal overload protection, internal short circuit current limiting, and output transistor safe-area compensation.
- What is the dropout voltage of the MC78M05CDT-001?
The dropout voltage is 2.0 Vdc at TJ = 25°C.
- 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 MC78M05CDT-001 require external components?
No, the MC78M05CDT-001 does not require external components for operation.
- What are the operating temperature ranges for this regulator?
The operating temperature ranges are from -40°C to +125°C for different models (AB, AC, B, C).
- Is the MC78M05CDT-001 ESD protected?
- What is the ripple rejection ratio of the MC78M05CDT-001?
The ripple rejection ratio is typically 62 dB at IO = 100 mA and f = 120 Hz.
- Can the MC78M05CDT-001 be used in automotive applications?
- What is the peak output current of the MC78M05CDT-001?
The peak output current is 700 mA at TJ = 25°C.
