The TPS742xx low-dropout (LDO) linear regulators provide an easy-to-use robust power management solution for a wide variety of applications. 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 ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that will meet the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.
A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. Each LDO is stable with low-cost ceramic output capacitors and the family is fully specified from –40°C to +125°C. The TPS742xx is offered in a small (5mm × 5mm) QFN package, yielding a highly compact total solution size. For applications that require additional power dissipation, the DDPAK (KTW) package is also available.
Soft-Start (SS) Pin Provides a Linear Startup with Ramp Time Set by External Capacitor
1% Accuracy Over Line, Load, and Temperature
Supports Input Voltages as Low as 0.9V with External Bias Supply
Adjustable Output (0.8V to 3.6V)
Fixed Output (0.9V to 3.6V)
Ultra-Low Dropout: 55mV at 1.5A (typ)
Stable with Any or No Output Capacitor
Excellent Transient Response
Available in 5mm × 5mm × 1mm QFN and DDPAK-7 Packages