Overview
The MC7805CDTG is a monolithic integrated circuit designed as a fixed-voltage regulator, produced by onsemi. This device is part of the MC78XX series and is specifically configured to provide a stable output voltage of 5.0 volts. It is suitable for a wide variety of applications, including local and on-card regulation, due to its internal current limiting, thermal shutdown, and safe-area compensation features.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 4.8 | 5.0 | 5.2 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | VO | 4.75 | 5.0 | 5.25 | Vdc |
| Line Regulation (7.5 Vdc ≤ Vin ≤ 20 Vdc, IO = 1.0 A) | Regline | - | 0.5 | 1.3 | mV |
| Load Regulation (5.0 mA ≤ IO ≤ 1.0 A) | Regload | - | 1.3 | 25 | mV |
| Quiescent Current | IB | 3.2 | 6.5 | - | mA |
| Peak Output Current (TJ = 25°C) | Imax | - | - | 2.2 | A |
| Average Temperature Coefficient of Output Voltage | TCVO | - | -0.3 | - | mV/°C |
| Short Circuit Current Limit (TA = 25°C) | ISC | - | - | 0.2 | A |
| Output Noise Voltage (10 Hz ≤ f ≤ 100 kHz) | Vn | - | - | 10 | μV/VO |
| Output Resistance (f = 1.0 kHz) | rO | - | - | 0.9 | mΩ |
Key Features
- Output current in excess of 1.0 A with adequate heatsinking.
- No external components required for operation.
- Internal current limiting and thermal shutdown for protection.
- Safe-area compensation to prevent output transistor failure.
- Low dropout voltage, typically 2.0 V at IO = 1.0 A.
- High ripple rejection ratio, typically 56 dB at 120 Hz.
- Available in various package types, including DPAK (MC7805CDTG).
Applications
- Local and on-card voltage regulation in electronic devices.
- Power supplies for various electronic equipment.
- Battery chargers and power adapters.
- Industrial control systems and automation.
- Consumer electronics such as audio and video equipment.
Q & A
- What is the output voltage of the MC7805CDTG?
The output voltage of the MC7805CDTG is 5.0 volts.
- What is the maximum output current of the MC7805CDTG?
The maximum output current is in excess of 1.0 A with adequate heatsinking.
- Does the MC7805CDTG require external components for operation?
No, the MC7805CDTG does not require external components for operation.
- What are the protection features of the MC7805CDTG?
The device features internal current limiting and thermal shutdown for protection.
- What is the typical dropout voltage of the MC7805CDTG?
The typical dropout voltage is 2.0 V at IO = 1.0 A.
- What is the ripple rejection ratio of the MC7805CDTG?
The ripple rejection ratio is typically 56 dB at 120 Hz.
- In what package type is the MC7805CDTG available?
The MC7805CDTG is available in the DPAK package type.
- What are some common applications of the MC7805CDTG?
Common applications include local and on-card voltage regulation, power supplies, battery chargers, industrial control systems, and consumer electronics.
- What is the quiescent current of the MC7805CDTG?
The quiescent current is typically 6.5 mA.
- What is the short circuit current limit of the MC7805CDTG?
The short circuit current limit is typically 0.2 A.
