Overview
The TPS74301RGWT is a high-accuracy, adjustable ultra-low-dropout (LDO) linear voltage regulator produced by Texas Instruments. This device is designed to provide robust power management solutions for a wide range of applications. It features a track pin that allows for flexible power-up sequencing, which is particularly useful in minimizing stress on ESD structures between the core and I/O power pins of processors. The regulator includes an enable input and a power-good output, enabling easy sequencing with external regulators. This makes it suitable for applications with special start-up requirements, such as FPGAs and DSPs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 0.8V to 5.5V | V |
| Output Voltage Range | 0.8V to 3.6V | V |
| Output Current | 1.5A | A |
| Dropout Voltage | 55mV (typ) at 1.5A | mV |
| Accuracy Over Line, Load, and Temperature | 1% | % |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 20-Pin VQFN (RGW) | |
| Junction-to-Ambient Thermal Resistance | 30.5°C/W | °C/W |
Key Features
- Track Pin for Flexible Power-Up Sequencing: Allows the output to track an external supply, useful for minimizing stress on ESD structures.
- High Accuracy: 1% accuracy over line, load, and temperature.
- Adjustable Output Voltage: From 0.8V to 3.6V.
- Ultra-Low Dropout: 55mV at 1.5A (typ).
- Stability with Any Output Capacitor: Stable with any output capacitor ≥ 2.2µF or even no capacitor.
- Excellent Transient Response: Ensures stable output under transient conditions.
- Open-Drain Power-Good Output: Indicates the status of the output voltage.
- Active High Enable Input: Allows for easy control of the regulator.
Applications
The TPS74301RGWT is suitable for a variety of applications, including:
- FPGAs and DSPs: Due to its programmable power-up sequencing and high accuracy.
- Processors and Microcontrollers: For core and I/O power supply with minimized ESD stress.
- High-Performance Computing Systems: Where stable and accurate voltage regulation is critical.
- Industrial and Automotive Systems: Given its wide operating temperature range and robust design.
Q & A
- What is the input voltage range of the TPS74301RGWT?
The input voltage range is from 0.8V to 5.5V.
- What is the maximum output current of the TPS74301RGWT?
The maximum output current is 1.5A.
- What is the dropout voltage of the TPS74301RGWT at 1.5A?
The dropout voltage is typically 55mV at 1.5A.
- What is the accuracy of the TPS74301RGWT over line, load, and temperature?
The accuracy is 1% over line, load, and temperature.
- What type of package does the TPS74301RGWT come in?
The device comes in a 20-Pin VQFN (RGW) package.
- Is the TPS74301RGWT stable with any output capacitor?
Yes, it is stable with any output capacitor ≥ 2.2µF or even no capacitor.
- What is the purpose of the track pin in the TPS74301RGWT?
The track pin allows the output to track an external supply, useful for minimizing stress on ESD structures.
- Does the TPS74301RGWT have a power-good output?
Yes, it has an open-drain power-good output.
- What is the operating temperature range of the TPS74301RGWT?
The operating temperature range is from -40°C to 85°C.
- Is the TPS74301RGWT RoHS compliant?
Yes, the TPS74301RGWT is RoHS compliant.
