The TPS74901 low-dropout (LDO) linear regulator provides an easy-to-use, robust power management solution for a wide variety of applications. Userprogrammable soft-start minimizes stress on the input power source by reducing capacitive inrush current during start-up. The soft-start is monotonic and designed for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility allows a solution to be configured that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with special start-up requirements. A precision reference and error amplifier deliver 2% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor ≥ 2.2 µF, and the device is fully specified from –40°C to +125°C. The TPS74901 is offered in a small (3 mm × 3 mm) VSON package and a small (5-mm × 5-mm) VQFN package, yielding a highly compact total solution size. The device is also available in a DDPAK-7 package

Features 

• VOUT range: 0.8 V to 3.6 V 

• Ultra-low VIN range: 0.8 V to 5.5 V 

• VBIAS range: 2.7 V to 5.5 V 

• Low dropout: 120 mV (typical) at 3 A 

• Power-good (PG) output allows supply monitoring or provides a sequencing signal for other supplies 

• Accuracy over line, load, and temperature: 2% 

• Adjustable start-up in-rush control 

• VBIAS permits low VIN operation with good transient response 

• Stable with any output capacitor ≥ 2.2 µF 

• Packages: – Small, 3-mm × 3-mm × 1-mm VSON – 5-mm × 5-mm × 1-mm VQFN and DDPAK-7 

• Active high enable 

Applications 

• Network attached storage - enterprise 

• Rack servers 

• Network interface cards (NIC) 

• Merchant network and server PSU

TPS74901 Datasheet Download