1 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:
– 50 mV typically at 500 mA, VBIAS = 5 V
• Power-good (PG) output allows supply monitoring
or provides a sequencing signal for other supplies
• Accuracy over line, load, and temperature: 2%
• 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 a small 3-mm × 3-mm × 1-mm 10-pin
package

2 Applications
• Network attached storage - enterprise
• Rack servers
• Network interface cards (NIC)
• Merchant network and server PSU

3 Description
The TPS74701 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 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 greater
than or equal to 2.2 μF, and is fully specified from
–40°C to +125°C. The TPS74701 is offered in a small
3-mm × 3-mm VSON-10 package for compatibility
with the TPS74801.