| Output options | Adjustable Output |
| Iout (Max) (A) | 3 |
| Vin (Max) (V) | 5.5 |
| Vin (Min) (V) | 0.8 |
| Vout (Max) (V) | 3.6 |
| Vout (Min) (V) | 0.8 |
| Noise (uVrms) | 13 |
| Iq (Typ) (mA) | 3 |
| Thermal resistance θJA (°C/W) | 27 |
| Rating | HiRel Enhanced Product |
| Load capacitance (Min) (μF) | 0 |
| Regulated outputs (#) | 1 |
| Features | Enable, Power good, Soft start |
| Accuracy (%) | 1 |
| PSRR @ 100 KHz (dB) | 50 |
| Dropout voltage (Vdo) (Typ) (mV) | 115 |
| Operating temperature range (C) | -55 to 125 |
- 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
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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.
