Overview
The TPS7A8300RGRR, produced by Texas Instruments, is a high-performance, low-noise, low-dropout voltage regulator (LDO) designed to power high-current, low-voltage devices. It is particularly suited for applications involving high-end microprocessors and field-programmable gate arrays (FPGAs). The regulator features ultralow dropout voltage, high accuracy, and remote sensing capabilities, making it ideal for noise-sensitive components in high-speed communication systems.
Key Specifications
| Parameter | Description |
|---|---|
| Package | VQFN-20 (3.5mm x 3.5mm or 5mm x 5mm) |
| Operating Temperature Range | -40°C to 125°C |
| Input Voltage Range | Without BIAS: 1.4 V to 6.5 V, With BIAS: 1.1 V to 6.5 V |
| Output Voltage Range | ANY-OUT™ Version: 0.8 V to 3.95 V, Adjustable Version: 0.8 V to 5.0 V |
| Output Current | Up to 2 A |
| Dropout Voltage | 125 mV Maximum at 2 A |
| Output Voltage Noise | 6 µV RMS |
| Power-Supply Ripple Rejection (PSRR) | 40 dB at 1 MHz |
| Accuracy Over Line, Load, and Temperature | 1.0% |
| Soft-Start and Remote Sensing | Programmable Soft-Start, Remote Sensing Capabilities |
Key Features
- Ultralow Dropout: 125 mV Maximum at 2 A
- Low Noise Output: 6 µV RMS
- High PSRR: 40 dB at 1 MHz
- Adjustable Output Voltage: ANY-OUT™ Version (user-programmable via PCB layout) and Adjustable Version (up to 5 V with external resistors)
- High Accuracy: 1.0% over line, load, and temperature
- Soft-Start and Remote Sensing: Programmable soft-start to reduce inrush current and remote sensing capabilities
- Power-Good (PG) Output: Indicates the status of the output voltage
- Stable with Ceramic Capacitors: Stable with a 22-µF output ceramic capacitor
Applications
The TPS7A8300RGRR is designed for various high-performance applications, including:
- High-Speed Communication Systems: Ideal for powering noise-sensitive components in high-speed communication applications.
- High-End Microprocessors and FPGAs: Suitable for powering high-current, low-voltage devices.
- Audio and Medical Devices: Used in applications requiring low noise and high precision voltage regulation.
- Industrial Automation and Telecommunications: Commonly used in industrial automation, telecommunications, and medical equipment.
- Consumer Electronic Devices: Utilized in power management applications such as voltage regulation, power sequencing, and battery charging.
Q & A
- What is the maximum dropout voltage of the TPS7A8300RGRR?
The maximum dropout voltage is 125 mV at 2 A.
- What is the output voltage noise of the TPS7A8300RGRR?
The output voltage noise is 6 µV RMS.
- What is the power-supply ripple rejection (PSRR) of the TPS7A8300RGRR?
The PSRR is 40 dB at 1 MHz.
- What are the input voltage ranges for the TPS7A8300RGRR?
Without BIAS: 1.4 V to 6.5 V, With BIAS: 1.1 V to 6.5 V.
- How can the output voltage be adjusted for the TPS7A8300RGRR?
The output voltage can be adjusted using the ANY-OUT™ Version (user-programmable via PCB layout) or the Adjustable Version (up to 5 V with external resistors).
- What is the accuracy of the TPS7A8300RGRR over line, load, and temperature?
The accuracy is 1.0% over line, load, and temperature.
- Does the TPS7A8300RGRR have soft-start and remote sensing capabilities?
Yes, it has programmable soft-start and remote sensing capabilities.
- What type of capacitor is recommended for stability with the TPS7A8300RGRR?
A 22-µF output ceramic capacitor is recommended for stability.
- What are some common applications for the TPS7A8300RGRR?
Common applications include high-speed communication systems, high-end microprocessors, FPGAs, audio and medical devices, industrial automation, and telecommunications.
- What is the operating temperature range of the TPS7A8300RGRR?
The operating temperature range is -40°C to 125°C.
