Overview
The MC33275ST-3.3T3G is a micropower low dropout voltage regulator produced by onsemi. This device is part of the MC33275 series, which is available in various output voltages and packages, including the SOT-223 package for this specific model. It is designed to provide a stable output voltage with minimal quiescent current, making it ideal for battery-powered consumer, computer, and industrial equipment where extending battery life is crucial.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (IO = 0 mA to 250 mA) | VO | 3.234 | 3.300 | 3.366 | Vdc |
| Input Voltage | VCC | - | - | 13 | Vdc |
| Maximum Output Current | IO | - | - | 300 | mA |
| Line Regulation (Vin = [VO + 1] V to 12 V, IO = 250 mA) | Regline | - | - | 10 | mV |
| Load Regulation (Vin = [VO + 1] V, IO = 0 mA to 250 mA) | Regload | - | - | 25 | mV |
| Dropout Voltage (IO = 300 mA) | Vin - VO | - | - | 260 | mV |
| Quiescent Current (ON Mode, Vin = [VO + 1] V, IO = 0 mA) | IQOn | 125 | 200 | - | μA |
| Operating Ambient Temperature Range | TA | -40 | - | 125 | °C |
| Maximum Junction Temperature | TJ | - | - | 150 | °C |
Key Features
- Low input-to-output voltage differential of 25 mV at IO = 10 mA and 260 mV at IO = 300 mA.
- Extremely tight line and load regulation.
- Stable with output capacitance of only 0.33 μF for 2.5 V, 3.0 V, and 3.3 V output voltage options.
- Internal current and thermal limiting protection.
- AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements.
- Pb-free devices.
Applications
- Battery-powered consumer products.
- Hand-held instruments.
- Camcorders and cameras.
- Battery-powered computer and industrial equipment where extending battery life is desirable.
Q & A
- What is the maximum output current of the MC33275ST-3.3T3G?
The maximum output current is 300 mA.
- What is the typical dropout voltage at 300 mA output current?
The typical dropout voltage at 300 mA output current is 260 mV.
- What are the operating ambient temperature ranges for this device?
The operating ambient temperature range is from -40°C to +125°C.
- What type of protection does the MC33275ST-3.3T3G have?
The device has internal current and thermal limiting protection.
- Is the MC33275ST-3.3T3G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
- What is the recommended output capacitance for stability?
The recommended output capacitance is 0.33 μF or greater for 2.5 V, 3.0 V, and 3.3 V output voltage options.
- What is the quiescent current of the MC33275ST-3.3T3G in ON mode?
The quiescent current in ON mode is typically 200 μA.
- What is the maximum junction temperature for this device?
The maximum junction temperature is 150°C.
- Is the MC33275ST-3.3T3G Pb-free?
Yes, the device is Pb-free.
- What are some common applications of the MC33275ST-3.3T3G?
Common applications include battery-powered consumer products, hand-held instruments, camcorders, and cameras.
