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.
(1) Custom temperature ranges available
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| 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 (µVrms) | 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 at 100 KHz (dB) | 50 |
| Dropout voltage (Vdo) (typ) (mV) | 115 |
| Operating temperature range (°C) | -55 to 125 |
| VQFN (RGW) | 20 | 25 mm² 5 x 5 |
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