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RTQ2551A - 1A Ultra-Low Dropout Voltage LDO Regulators

Datasheet Summary

Description

The RTQ2551A is a very low dropout linear regulator that operates from an input voltage as low as 0.8V.

The device is capable of supplying 1A of output current with a typical dropout voltage of only 50mV.

Features

  • Ultra-Low VIN Range: 0.8V to 5.5V.
  • VBIAS Voltage Range: 2.7V to 5.5V.
  • VOUT Voltage Range: 0.8V to 3.6V.
  • Low Dropout: 50mV Typical at 1A, VBIAS = 5V.
  • 1% Accuracy Over Line/Load/ Temperature.
  • Power-Good Indicator for Easy Sequence Control.
  • Programmable Soft-Start Provides Linear Voltage Startup.
  • Stable with Any Output Capacitor  2.2F.
  • Overcurrent and Over-Temperature Protection 3.

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Datasheet Details

Part number RTQ2551A
Manufacturer Richtek
File Size 1.02 MB
Description 1A Ultra-Low Dropout Voltage LDO Regulators
Datasheet download datasheet RTQ2551A Datasheet
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RTQ2551A 1A Ultra-Low Dropout Voltage LDO Regulators with SoftStart 1 General Description The RTQ2551A is a very low dropout linear regulator that operates from an input voltage as low as 0.8V. The device is capable of supplying 1A of output current with a typical dropout voltage of only 50mV. A VBIAS supply is required to run the internal reference and LDO circuitry while output current comes directly from the VIN supply for high efficiency regulation. Userprogrammable soft-start limits the input inrush current and minimizes stress on the input power. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility provides an easy-to-use robust power management solution for a wide variety of applications.
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