Overview
The MC33275DT-3.3G is a micropower low dropout (LDO) linear voltage regulator produced by onsemi. This device is part of the MC33275 series, which is available in various output voltages and package types, including DPAK, SOT-223, SOP-8, and DFN 4x4 surface mount packages. The MC33275DT-3.3G is specifically designed to provide a fixed output voltage of 3.3V and can supply output currents up to 300 mA. It features a very low quiescent current, making it ideal for battery-powered devices where extending battery life is crucial.
Key Specifications
| Attribute | Value |
|---|---|
| Maximum Output Current | 300 mA |
| Regulator Type | Low Dropout Voltage |
| Output Voltage | 3.3 V |
| Number of Outputs | 1 |
| Line Regulation | 10 mV |
| Load Regulation | 25 mV |
| Accuracy | ±1% |
| Mounting Type | Surface Mount |
| Polarity | Positive |
| Package Type | DPAK |
| Quiescent Current | 0.125 mA |
| Pin Count | 3 |
| Output Type | Fixed |
| Dimensions | 6.73 x 6.22 x 2.38 mm |
| Height | 2.38 mm |
| Maximum Input Voltage | 13 V |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +125 °C |
| Width | 6.22 mm |
| Length | 6.73 mm |
Key Features
- Low Input-to-Output Voltage Differential: As low as 25 mV at 10 mA and 260 mV at 300 mA.
- Low Quiescent Current: 0.125 mA, which helps in extending battery life in portable devices.
- Internal Current and Thermal Limiting Protection: Includes short circuit protection and thermal shutdown circuit.
- Tight Line and Load Regulation: Ensures stable output voltage across various input and load conditions.
- Stable with Low Output Capacitance: Can operate with an output capacitance as low as 0.33 μF for 2.5 V output voltage.
- High PSRR and Low Noise: Provides high power supply rejection ratio (PSRR) and low noise operation.
Applications
- Battery Powered Consumer Products: Ideal for devices where battery life extension is critical.
- Handheld Instruments: Suitable for portable devices such as camcorders, cameras, and other handheld equipment.
- Industrial Equipment: Used in various industrial applications where low power consumption and stable voltage regulation are necessary.
Q & A
- What is the maximum output current of the MC33275DT-3.3G?
The maximum output current is 300 mA. - What is the output voltage of the MC33275DT-3.3G?
The output voltage is fixed at 3.3 V. - What is the quiescent current of the MC33275DT-3.3G?
The quiescent current is 0.125 mA. - What type of protection does the MC33275DT-3.3G have?
It has internal current and thermal limiting protection, including short circuit protection and thermal shutdown circuit. - What is the operating temperature range of the MC33275DT-3.3G?
The operating temperature range is from -40 °C to +125 °C. - What is the maximum input voltage for the MC33275DT-3.3G?
The maximum input voltage is 13 V. - What package type is the MC33275DT-3.3G available in?
It is available in a DPAK package. - Is the MC33275DT-3.3G suitable for battery-powered devices?
Yes, it is highly suitable due to its low quiescent current and low input-to-output voltage differential. - What are some common applications of the MC33275DT-3.3G?
Common applications include battery-powered consumer products, handheld instruments, and industrial equipment. - Does the MC33275DT-3.3G have high PSRR and low noise?
Yes, it provides high power supply rejection ratio (PSRR) and low noise operation.
