TPS7A7401DSDR

The TPS7A74 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 application-specific integrated circuits (ASICs). The enable input allows for easy sequencing with external regulators. This complete flexibility allows a solution to be configured that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with special start-up requirements. A precision reference and error amplifier deliver 1.5% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 10 μF, and is fully specified for TJ = -40°C to +125°C. The TPS7A74 is offered in a small, 3–mm × 3–mm, WSON-8 package, yielding a highly compact, total solution size.

Applications

• High-performance computing
• Microservers
• Desktop and PC motherboards
• Data concentrators
• Rugged PC laptops

Key features

• VOUT range: 0.65 V to 3.6 V
• Ultra-low VIN range: 0.65 V to 6 V
• VBIAS range: 1.7 V to 6 V
• Low dropout: 150 mV typical at 1.5 A, VBias = 5 V
• Noise: 7.1 μV RMS
• PSRR: – 70 dB at 1 kHz, 60 dB at 10 kHz, 55 dB at 100 kHz, 50 dB at 1 MHz
• 1.5% accuracy over line, load, and temperature
• Programmable soft-start provides linear voltage start-up
• VBIAS permits low VIN operation with good transient response
• UVLO on both IN and BIAS
• Stable with any output capacitor ≥10 μF
• Package: Small, 3 mm × 3 mm × 0.8 mm WSON-8