1 General Description
The RTQ2527D is a very low-dropout linear regulator
which operates from input voltage as low as 0.8V. The
device is capable of supplying 3A of output current with
a typical dropout voltage of only 120mV. 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.
The RTQ2527D is stable with output capacitor greater
than or equal to 2.2F. A precise reference and error
amplifier deliver 1% accuracy over load, line and
temperature. Overcurrent limit and over-temperature
protection are also included. The RTQ2527D is
available in the WDFN-10L 3x3 package.

2 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: 120mV Typ. at 3A, VBIAS = 5V
⚫ 1% Accuracy Over Line/Load/ Temperature
⚫ PGOOD 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 Applications
⚫ PCs, Servers, Modems, and Set-Top-Boxes
⚫ FPGA Applications
⚫ DSP Core and I/O Voltages
⚫ Instrumentation
⚫ Post-Regulation Applications
⚫ Applications With Sequencing Requirements