The TPS74401 low-dropout (LDO) linear regulator provides 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 specific 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 device is fully specified from –55°C to 125°C.

• 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 0.9 V with External Bias Supply
• Adjustable Output (0.8 V to 3.6 V)
• Ultra-Low Dropout: 115 mV at 3.0 A (typ)
• Stable with Any or No Output Capacitor
• Excellent Transient Response
• Available in 5 mm × 5 mm × 1 mm QFN Package
• Active High Enable
• SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
  • Controlled Baseline
  • One Assembly/Test Site
  • One Fabrication Site
  • Available in Military (–55°C/125°C) Temperature Ranges(1)
  • Extended Product Life Cycle
  • Extended Product-Change Notification
  • Product Traceability
• APPLICATIONS
  • FPGA Applications
  • DSP Core and I/O Voltages
  • Post-Regulation Applications
  • Applications with Special Start-Up Time or Sequencing Requirements
  • Hot-Swap and Inrush Controls

(1) Custom temperature ranges available All other trademarks are the property of their respective owners