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IC REG LIN POS ADJ 1.5A 20VQFN
1FEATURES
• VOUT Range: 0.8V to 3.6V
• Ultralow VIN Range: 0.8V to 5.5V
• VBIAS Range 2.7V to 5.5V
• Low Dropout: 60mV typ at 1.5A, VBIAS = 5V
• Power Good (PG) Output Allows Supply Monitoring or Provides a Sequencing Signal for Other Supplies
• 2% Accuracy Over Line/Load/Temperature
• Programmable Soft-Start Provides Linear Voltage Startup
• VBIAS Permits Low VIN Operation with Good Transient Response
• Stable with Any Output Capacitor ≥ 2.2μF
• Available in a Small 3mm x 3mm x 1mm SON-10 and 5 x 5 QFN-20 Packages
2 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
3 DESCRIPTION
The TPS74801 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 meets the sequencing requirements of FPGAs, DSPs, and other
applications with special start-up requirements.
A precision reference and error amplifier deliver 2% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2μF, and is fully specified from –40°C to +125°C. The TPS74801 is offered in a small 3mm × 3mm SON-10 package, yielding a highly compact, total solution size. It is also available in a 5 x 5 QFN-20 for compatibility with the TPS74401.
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