Overview
The TPS78225DDCR is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It is designed to provide a stable and reliable voltage output for a wide range of applications. This regulator operates from an input voltage range of 2.5V to 5.5V and offers fixed output voltage options of 2.5V, 2.8V, 3.0V, or 3.3V, depending on the selected model. The TPS78225DDCR is known for its high efficiency, low quiescent current, and compact package size, making it suitable for space-constrained applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5V to 5.5V | V |
| Output Voltage Options | 2.5V, 2.8V, 3.0V, 3.3V | V |
| Output Current | Up to 150mA | mA |
| Quiescent Current (IQ) | 1 μA (typical) | μA |
| Dropout Voltage at 85°C | 175 mV at 150 mA | mV |
| Output Voltage Accuracy | ±4% over load/line/temperature | % |
| Package Type | SOT-23-5, TSOP | |
| Pin Count | 5 | |
| Thermal Shutdown and Overcurrent Protection | Yes | |
| Enable Pin Compatibility | CMOS Logic Level Compatible |
Key Features
- Ultra-low quiescent current of 1 μA, making it ideal for battery-powered and low-power applications.
- High efficiency and low dropout voltage of 175 mV at 85°C and 150 mA output current.
- Compact and thermally efficient package options, including SOT-23-5 and TSOP, suitable for space-constrained designs.
- Fixed output voltage options with ±4% accuracy over load, line, and temperature.
- CMOS logic level compatible enable pin for easy control.
- Thermal shutdown and overcurrent protection for enhanced reliability.
- Stable operation with a small 1-μF ceramic capacitor.
Applications
The TPS78225DDCR is versatile and suitable for a wide range of applications, including:
- Portable devices such as smartphones, tablets, and wearables.
- Internet of Things (IoT) devices requiring low power consumption.
- Industrial equipment where reliable and stable voltage regulation is crucial.
- Medical equipment that demands high precision and low noise voltage regulation.
- Automotive electronics where robustness and reliability are essential.
Q & A
- What is the input voltage range of the TPS78225DDCR?
The input voltage range is from 2.5V to 5.5V. - What are the available output voltage options for the TPS78225DDCR?
The available output voltage options are 2.5V, 2.8V, 3.0V, and 3.3V. - What is the maximum output current of the TPS78225DDCR?
The maximum output current is up to 150mA. - What is the quiescent current (IQ) of the TPS78225DDCR?
The quiescent current is 1 μA (typical). - Does the TPS78225DDCR have thermal shutdown and overcurrent protection?
Yes, it does have thermal shutdown and overcurrent protection. - What type of package is the TPS78225DDCR available in?
The TPS78225DDCR is available in SOT-23-5 and TSOP packages. - Is the enable pin of the TPS78225DDCR CMOS logic level compatible?
Yes, the enable pin is CMOS logic level compatible. - What is the output voltage accuracy of the TPS78225DDCR?
The output voltage accuracy is ±4% over load, line, and temperature. - What kind of capacitor is required for stable operation of the TPS78225DDCR?
A small 1-μF ceramic capacitor is required for stable operation. - In which applications is the TPS78225DDCR commonly used?
The TPS78225DDCR is commonly used in portable devices, IoT devices, industrial equipment, medical equipment, and automotive electronics.
