TPS74901RGWRM3

The TPS74901 low-dropout (LDO) linear regulator provides an easy-to-use, stable, and reliable power management solution for a wide range of applications. The user-programmable soft-start feature minimizes stress on the input power supply by reducing capacitive inrush current during startup. The soft-start is monotonic and specifically designed to power a wide variety of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility enables the configuration of solutions that meet the sequencing requirements of FPGAs, DSPs, and other applications with special startup requirements. The precision reference and error amplifier achieve 2% accuracy across load, line, temperature, and process conditions. The device remains stable with any capacitor ≥2.2µF and is fully specified over a temperature range of -40°C to +125°C. The TPS74901 is available in a compact (3mm×3mm) VSON package and a small (5mm×5mm) VQFN package, enabling an extremely compact overall solution size. The device is also available in a DDPAK-7 package.

Applications

• Enterprise network-attached storage
• Rack-mount servers
• Network interface cards (NIC)
• Commercial networking and server power supplies

Key features

• Output voltage range: 0.8V to 3.6V
• Ultra-low input voltage range: 0.8V to 5.5V
• Bias voltage range: 2.7V to 5.5V
• Low dropout: 120mV typical at 3A
• Power Good (PG) output for power supply monitoring or sequencing of other supplies
• Accuracy over line, load, and temperature: 1% for new silicon
• Accuracy over line, load, and temperature: 2% for old silicon
• Adjustable startup inrush control
• Bias voltage enables operation at low input voltage with good transient response
• Stable with any output capacitor ≥2.2µF
• Package options:
• Small 3mm×3mm×1mm VSON package
• 5mm×5mm×1mm VQFN and DDPAK-7 packages
• Active-high enable