Texas Instruments TPS7A74 | Demoboard LAUNCHXL-F28P65X

Description

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.

Features

VOUT range: 0.65 V to 3.6 VUltra-low VIN range: 0.65 V to 6 VVBIAS range: 1.7 V to 6 VLow dropout: 150 mV typical at 1.5 A, VBIAS = 5 VNoise: 7.1 µVRMSPSRR:70 dB at 1 kHz60 dB at 10 kHz55 dB at 100 kHz50 dB at 1 MHz1.5% accuracy over line, load, and temperatureProgrammable soft-start provides linear voltage start-upVBIAS permits low VIN operation with good transient responseUVLO on both IN and BIASStable with any output capacitor ≥ 10 µFPackage: Small, 3-mm × 3-mm × 0.8-mm WSON-8

Typical applications

• Air conditioner outdoor unit
• Central inverter
• CNC control
• Welding machine
• Solar power optimizer
• Door operator drive control
• Industrial AC-DC
• Textile machine

More information

• Datasheet
• IC product information