Overview
The onsemi MC33269T-3.3G is a low dropout (LDO) linear voltage regulator designed for medium current applications. This regulator is part of the MC33269/NCV33269 series, which offers fixed and adjustable output voltage options. The MC33269T-3.3G specifically provides a fixed output voltage of 3.3 V and is suitable for use in low input voltage applications. It features a 1.0 V dropout composite PNP-NPN pass transistor, current limiting, and thermal shutdown, making it an economical solution for precision voltage regulation while minimizing power losses.
Key Specifications
| Specification | Value |
|---|---|
| Brand | onsemi |
| Maximum Output Current | 800 mA |
| Regulator Type | Low Dropout Voltage |
| Output Voltage | 3.3 V |
| Number of Outputs | 1 |
| Line Regulation | 0.3 % |
| Accuracy | 1 % |
| Load Regulation | 0.5 % |
| Mounting Type | Through Hole |
| Polarity | Positive |
| Package Type | TO-220 |
| Quiescent Current | 20 mA |
| Pin Count | 3 |
| Output Type | Fixed |
| Dimensions | 10.28 x 4.82 x 15.75 mm |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +125 °C |
| Maximum Input Voltage | 20 V |
| Dropout Voltage (Max) | 1.35 V |
Key Features
- Fixed output voltage of 3.3 V, with other versions available (3.5 V, 5.0 V, 12 V, and adjustable)
- Medium current capability of up to 800 mA
- Low dropout voltage of 1.0 V
- Thermal protection and short circuit protection
- Output voltage trimmed to 1.0% tolerance
- Space-saving packages including DPAK, SO-8, and SOT-223
- Pb-free packages available
- NCV prefix for automotive and other applications requiring unique site and control change requirements
Applications
The MC33269T-3.3G is suitable for a variety of applications requiring precise voltage regulation with low power losses. These include:
- Low input voltage applications
- Automotive systems (with NCV prefix)
- Battery-backed power supplies
- Digitally controlled voltage regulators
- General industrial and consumer electronics where stable voltage regulation is critical
Q & A
- What is the maximum output current of the MC33269T-3.3G?
The maximum output current is 800 mA.
- What is the output voltage of the MC33269T-3.3G?
The output voltage is fixed at 3.3 V.
- What is the dropout voltage of the MC33269T-3.3G?
The maximum dropout voltage is 1.35 V.
- What are the available package types for the MC33269 series?
The available packages include TO-220, DPAK, SO-8, and SOT-223.
- Does the MC33269T-3.3G have thermal protection?
- What is the quiescent current of the MC33269T-3.3G?
The quiescent current is 20 mA.
- What is the operating temperature range of the MC33269T-3.3G?
The operating temperature range is from -40 °C to +125 °C.
- Is the MC33269T-3.3G suitable for automotive applications?
- What is the maximum input voltage for the MC33269T-3.3G?
The maximum input voltage is 20 V.
- Does the MC33269T-3.3G have Pb-free packages available?
