Professional IC Distribution & Technical Solutions

The TPS7A8400RGRR is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features:

Specifications:

• Input Voltage Range: 1.4V to 6.5V
• Output Voltage Range: 0.8V to 5.5V (adjustable)
• Output Current: 4A (maximum)
• Dropout Voltage: 95mV (typical) at 1A
• Accuracy: ±1% (over line, load, and temperature)
• Quiescent Current: 1.1mA (typical)
• PSRR: 60dB at 1kHz
• Operating Temperature Range: -40°C to +125°C
• Package: 20-pin VQFN (RGR)

Descriptions:

The TPS7A8400 is a high-performance, low-noise, ultra-low-dropout linear regulator designed for power-sensitive applications. It provides excellent transient response and high PSRR, making it suitable for noise-sensitive systems such as RF, medical, and industrial applications. The device supports adjustable output voltage and includes features like power-good indication and enable control.

Features:

• Ultra-Low Dropout Voltage: Enables efficient operation with minimal headroom.
• High PSRR: Reduces noise in sensitive circuits.
• Adjustable Output Voltage: Configurable via external resistors.
• Power-Good (PG) Indicator: Monitors output voltage status.
• Enable Pin (EN): Allows for power sequencing control.
• Thermal Shutdown & Overcurrent Protection: Ensures safe operation.
• Small Footprint: 20-pin VQFN package (3.5mm × 4.5mm).

This LDO is ideal for applications requiring stable, low-noise power supplies, such as FPGAs, DSPs, and RF modules.