Overview
The MC78M05CDTG is a 5.0 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 | 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 |
| Input Voltage | VI | 7.0 | - | 20 | Vdc |
| Maximum Output Current | IO | - | - | 500 | mA |
| Power Dissipation (Package Limitation) | PD | Internally Limited | - | - | W |
| Thermal Resistance, Junction-to-Air | θJA | - | - | 70 | °C/W |
| Operating Junction Temperature Range | TJ | - | - | +150 | °C |
| Storage Temperature Range | Tstg | -65 | - | +150 | °C |
| 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) | ΔVO/ΔT | - | ±0.2 | - | mV/°C |
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: Human Body Model 2000 V per MIL-STD-883, Method 3015; Machine Model Method 200 V
Applications
The MC78M05CDTG is suitable for various applications requiring stable voltage regulation, including:
- Local, on-card voltage regulation
- Automotive and industrial systems (NCV prefix models)
- Consumer electronics
- Medical devices
- Telecommunication equipment
Q & A
- What is the maximum output current of the MC78M05CDTG?
The maximum output current is 500 mA.
- What is the output voltage of the MC78M05CDTG?
The output voltage is 5.0 V.
- What are the key protection features of the MC78M05CDTG?
The device features internal thermal overload protection, internal short circuit current limiting, and output transistor safe-area compensation.
- Does the MC78M05CDTG require external components?
No, the MC78M05CDTG does not require external components.
- What is the operating junction temperature range of the MC78M05CDTG?
The operating junction temperature range is -40°C to +125°C.
- What is the dropout voltage of the MC78M05CDTG?
The dropout voltage is 2.0 Vdc at TJ = 25°C.
- What is the short circuit current limit of the MC78M05CDTG?
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 MC78M05CDTG have ESD protection?
- What are some common applications for the MC78M05CDTG?
