Description 

The TPS74801 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 on start-up. The soft-start is monotonic and designed for powering many different types of processors and 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 FPGAs, 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 greater than or equal to 2.2 μF, and is fully specified for TJ = –40°C to +125°C. The TPS748 is offered in a small, 3-mm × 3-mm, VSON-10 package, yielding a highly compact, total solution size. The device is also available in a 5-mm × 5-mm VQFN-20 package for compatibility with the TPS74401.

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: 60 mV typical at 1.5 A, VBIAS = 5 V 

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

• 2% accuracy over line, load, and temperature 

• Programmable soft-start provides linear voltage start-up 

• VBIAS permits low VIN operation with good transient response 

• Stable with any output capacitor ≥ 2.2 μF 

• Available in small, 3-mm × 3-mm × 1-mm VSON-10 and 5-mm × 5-mm VQFN-20 packages  

Applications 

• Network attached storage - enterprise 

• Rack servers 

• Network interface cards (NIC) 

• Merchant network and server PSU

TPS74801 Datasheet Download