Overview
The onsemi MC33269DR2-3.3G is a low dropout (LDO) linear voltage regulator designed for precision voltage regulation in low input voltage applications. This device is part of the MC33269/NCV33269 series, which offers fixed and adjustable output voltage options. The MC33269DR2-3.3G specifically provides a fixed output voltage of 3.3V, making it suitable for a wide range of electronic systems requiring stable and efficient power supply.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | onsemi |
| Part Number | MC33269DR2-3.3G |
| Output Voltage | 3.3 V |
| Maximum Output Current | 800 mA |
| Dropout Voltage | 1.35 V @ 800 mA |
| Operating Temperature Range | -40°C to +125°C |
| Maximum Input Voltage | 20 V |
| Package Type | SOIC-8 |
| Quiescent Current | 20 mA (fixed output) |
| Line Regulation | 0.3 % |
| Load Regulation | 0.5 % |
| Ripple Rejection | 55 dB @ 120 Hz |
| Thermal Protection | Yes |
| Short Circuit Protection | Yes |
Key Features
- Low dropout voltage of 1.35 V at 800 mA output current
- High output current capability of up to 800 mA
- Fixed output voltage of 3.3 V with 1% tolerance
- Space-saving SOIC-8 package
- Thermal and short circuit protection
- High ripple rejection of 55 dB @ 120 Hz
- Operating temperature range from -40°C to +125°C
- AEC-Q100 qualified for automotive and other demanding applications
Applications
- Low input voltage applications requiring precision voltage regulation
- Automotive systems (NCV prefix versions)
- Industrial control systems
- Consumer electronics requiring stable power supply
- Battery-backed power supplies
- Digitally controlled voltage regulators
Q & A
- What is the output voltage of the MC33269DR2-3.3G?
The output voltage is fixed at 3.3 V.
- What is the maximum output current of the MC33269DR2-3.3G?
The maximum output current is 800 mA.
- What is the dropout voltage of the MC33269DR2-3.3G at 800 mA output current?
The dropout voltage is 1.35 V at 800 mA output current.
- What is the operating temperature range of the MC33269DR2-3.3G?
The operating temperature range is from -40°C to +125°C.
- Does the MC33269DR2-3.3G have thermal and short circuit protection?
Yes, it has both thermal and short circuit protection.
- What is the ripple rejection of the MC33269DR2-3.3G at 120 Hz?
The ripple rejection is 55 dB at 120 Hz.
- What package type is the MC33269DR2-3.3G available in?
The device is available in an SOIC-8 package.
- Is the MC33269DR2-3.3G AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified for automotive and other demanding applications.
- What is the quiescent current of the MC33269DR2-3.3G?
The quiescent current is 20 mA for fixed output voltage.
- What are some common applications of the MC33269DR2-3.3G?
Common applications include low input voltage systems, automotive systems, industrial control systems, and consumer electronics.
