Overview
The TPS7A8300ARGWR, produced by Texas Instruments, is a high-performance, low-noise, low-dropout voltage regulator (LDO) designed to power high-current, low-voltage devices. This regulator is capable of sourcing a 2-A load with a maximum dropout voltage of 125 mV, making it ideal for applications involving high-end microprocessors and field-programmable gate arrays (FPGAs). The device features very high accuracy (1% over line, load, and temperature), remote sensing, and programmable soft-start capabilities to reduce inrush current. It is particularly suited for noise-sensitive components in high-speed communication applications due to its low output noise and high power-supply ripple rejection (PSRR) of 40 dB at 1 MHz.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Dropout Voltage | 125 mV | mV |
| Output Current | 2 A | A |
| Output Voltage Noise | 6 µV RMS | µV RMS |
| Power-Supply Ripple Rejection (PSRR) | 40 dB at 1 MHz | dB |
| Input Voltage Range (Without BIAS) | 1.4 V to 6.5 V | V |
| Input Voltage Range (With BIAS) | 1.1 V to 6.5 V | V |
| Output Voltage Range (ANY-OUT™ Version) | 0.8 V to 3.95 V | V |
| Output Voltage Range (Adjustable Version) | 0.8 V to 5.0 V | V |
| Accuracy Over Line, Load, and Temperature | 1% | % |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | 5-mm × 5-mm VQFN-20, 3.5-mm × 3.5-mm VQFN-20 | - |
Key Features
- Ultralow Dropout: Maximum 125 mV at 2 A
- Low Output Noise: 6 µV RMS
- High PSRR: 40 dB at 1 MHz
- User-Programmable Output Voltage: ANY-OUT™ version allows output voltage adjustment via PCB layout without external resistors
- Adjustable Output Voltage: Up to 5.0 V with external resistors
- High Accuracy: 1% over line, load, and temperature
- Programmable Soft-Start Output: Reduces inrush current
- Power-Good (PG) Output: Indicates the status of the output voltage
- Stable with Ceramic Capacitors: Stable operation with a 22-µF output ceramic capacitor
Applications
- High-End Microprocessors and FPGAs: Ideal for powering high-current, low-voltage devices
- High-Speed Communication Applications: Suitable for noise-sensitive components in applications such as RF, IF components, VCO, ADC, DAC, and LVDS
- Wireless Infrastructure: Used in SerDes, FPGA, and DSP applications
- Test and Measurement: Applicable in various test and measurement equipment
- Instrumentation, Medical, and Audio Devices: Suitable for low-noise power supply requirements in these fields
Q & A
- What is the maximum dropout voltage of the TPS7A8300?
The maximum dropout voltage is 125 mV at 2 A.
- What is the output voltage noise of the TPS7A8300?
The output voltage noise is 6 µV RMS.
- What is the power-supply ripple rejection (PSRR) of the TPS7A8300?
The PSRR is 40 dB at 1 MHz.
- What are the input voltage ranges for the TPS7A8300?
Without BIAS: 1.4 V to 6.5 V; With BIAS: 1.1 V to 6.5 V.
- How can the output voltage of the TPS7A8300 be adjusted?
The output voltage can be adjusted using the ANY-OUT™ version via PCB layout without external resistors, or up to 5.0 V with external resistors.
- What is the accuracy of the TPS7A8300 over line, load, and temperature?
The accuracy is 1% over line, load, and temperature.
- What are the available package types for the TPS7A8300?
The available packages are 5-mm × 5-mm VQFN-20 and 3.5-mm × 3.5-mm VQFN-20.
- What is the operating temperature range of the TPS7A8300?
The operating temperature range is -40°C to 125°C.
- Does the TPS7A8300 have a power-good (PG) output feature?
Yes, the TPS7A8300 has a power-good (PG) output feature.
- What type of capacitors is the TPS7A8300 stable with?
The TPS7A8300 is stable with a 22-µF output ceramic capacitor.
