Overview
The MC33269DT series, produced by onsemi, is a line of low dropout, medium current, fixed and adjustable positive voltage regulators. These devices are specifically designed for use in low input voltage applications, offering an economical solution for precision voltage regulation while minimizing power losses. The regulators feature a 1.0 V dropout composite PNP-NPN pass transistor, along with current limiting and thermal shutdown, making them suitable for a variety of applications requiring stable voltage regulation.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | onsemi |
| Input Voltage - Max | 20 V |
| Output Voltage - Fixed | 3.3 V (for MC33269DT-3.3G) |
| Dropout Voltage - Max | 1.35 V |
| Output Current - Max | 800 mA |
| Tolerance | ±1% |
| Operating Temperature Range | -40°C to +125°C |
| Regulator Topology | Fixed |
| Quiescent Current | 20 mA |
| No. of Outputs | Single |
| Load Regulation | 0.5% |
| Line Regulation | 0.3% |
| Package Style | TO-252-3 (DPAK) |
| Mounting Method | Surface Mount |
Key Features
- 3.3 V, 5.0 V, 12 V and Adjustable Versions
- Space Saving DPAK, SO-8 and SOT-223 Power Packages
- 1.0 V Dropout
- Output Current in Excess of 800 mA
- Thermal Protection
- Short Circuit Protection
- Output Trimmed to 1.0% Tolerance
- Pb-Free Packages are Available
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable
Applications
The MC33269DT series is suitable for a wide range of applications, including:
- Low input voltage applications requiring precision voltage regulation.
- Systems needing high current output with minimal dropout voltage.
- Automotive and industrial applications where reliability and thermal protection are critical.
- Battery-backed power supplies and digitally controlled voltage regulators.
- General-purpose voltage regulation in electronic devices.
Q & A
- What is the maximum input voltage for the MC33269DT series?
The maximum input voltage is 20 V.
- What are the available output voltage options for the MC33269DT series?
The series offers fixed output voltages of 3.3 V, 5.0 V, 12 V, and adjustable versions.
- What is the maximum output current of the MC33269DT series?
The maximum output current is 800 mA.
- What is the dropout voltage of the MC33269DT series?
The dropout voltage is typically less than 1.0 V, with a maximum of 1.35 V.
- What are the key protective features of the MC33269DT series?
The key protective features include thermal protection, short circuit protection, and current limiting.
- What type of packages are available for the MC33269DT series?
The devices are available in DPAK, SO-8, and SOT-223 power packages.
- Is the MC33269DT series suitable for automotive applications?
- What is the operating temperature range for the MC33269DT series?
The operating temperature range is -40°C to +125°C.
- Do the MC33269DT series regulators require external capacitors for stability?
- Are the MC33269DT series regulators Pb-free?
