The TPS74401 low-dropout (LDO) linear regulators provide an easy-to-use robust
power-management solution for a wide variety of applications. The user-programmable soft-start
minimizes stress on the input power source by reducing capacitive inrush current on start-up. The
soft-start is monotonic and well-suited 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 lets the user configure a solution
that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal
processors (DSPs), and other applications with specific start-up requirements.A precision reference and error amplifier deliver 1% accuracy over load, line,
temperature, and process. The TPS74401 family of LDOs is stable without an output capacitor or with
ceramic output capacitors. The device family is fully specified from TJ =
–40°C to 125°C. The TPS74401 is offered in two 20-pin small
VQFN packages (a 5-mm × 5-mm RGW and a
3.5-mm × 3.5-mm RGR package), yielding a highly compact total solution size. For
applications that require additional power dissipation, the DDPAK (KTW) package is also
available.
