Overview
The MC33275ST-2.5T3G 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 the SOT-223 package for this specific model. The MC33275ST-2.5T3G is designed to provide a stable output voltage of 2.5V 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
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage | VO | 2.475 | 2.5 | 2.525 | Vdc |
| Output Current | IO | - | 0.3 | - | A |
| Input Voltage Range | VIN | 2.6 | - | 13 | V |
| Dropout Voltage at IO = 10 mA | VIN - VO | - | 25 | - | mV |
| Dropout Voltage at IO = 300 mA | VIN - VO | - | 260 | - | mV |
| Quiescent Current | Iq | - | 0.125 | - | mA |
| Power Supply Rejection Ratio (PSRR) | - | - | 75 | - | dB |
| Operating Ambient Temperature Range | TA | -40 | - | 125 | °C |
| Storage Temperature Range | Tstg | -65 | - | 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 output voltage.
- Internal current and thermal limiting protection.
- Very low quiescent current of 125 µA.
- High power supply rejection ratio (PSRR) of 75 dB.
- Operating ambient temperature range from -40°C to +125°C.
Applications
- Battery-powered consumer products.
- Handheld instruments.
- Camcorders and cameras.
- Industrial equipment where extending battery life is desirable.
Q & A
- What is the output voltage of the MC33275ST-2.5T3G? The output voltage is 2.5V.
- What is the maximum output current of the MC33275ST-2.5T3G? The maximum output current is 300 mA.
- What is the quiescent current of the MC33275ST-2.5T3G? The quiescent current is 125 µA.
- What is the dropout voltage at IO = 10 mA and IO = 300 mA? The dropout voltage is 25 mV at IO = 10 mA and 260 mV at IO = 300 mA.
- What type of protection does the MC33275ST-2.5T3G have? It has internal current and thermal limiting protection.
- What is the recommended output capacitance for stability? The recommended output capacitance is 0.33 µF or greater.
- What is the operating ambient temperature range of the MC33275ST-2.5T3G? The operating ambient temperature range is from -40°C to +125°C.
- What are the typical applications of the MC33275ST-2.5T3G? Typical applications include battery-powered consumer products, handheld instruments, camcorders, and industrial equipment.
- What package type is the MC33275ST-2.5T3G available in? The MC33275ST-2.5T3G is available in the SOT-223 package.
- What is the power supply rejection ratio (PSRR) of the MC33275ST-2.5T3G? The PSRR is 75 dB.
