RTQ2527D
3A Ultra-Low Dropout Voltage Regulators with Soft-Start
2 Features
1 General Description
⚫ Ultra-low V Range: 0.8V to 5.5V
IN
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. User-
programmable 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.
⚫ VBIAS Voltage Range: 2.7V to 5.5V
⚫ VOUT Voltage Range: 0.8V to 3.6V
⚫ Low Dropout: 120mV Typ. at 3A, V
= 5V
BIAS
⚫ 1% Accuracy Over Line/Load/ Temperature
⚫ PGOOD Indicator for Easy Sequence Control
⚫ Programmable Soft-Start Provides Linear
Voltage Startup
⚫ Stable with Any Output Capacitor 2.2F
⚫ Overcurrent and Over-Temperature Protection
3 Applications
⚫ PCs, Servers, Modems, and Set-Top-Boxes
⚫ FPGAApplications
The RTQ2527D is stable with output capacitor greater
than or equal to 2.2F. 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.
⚫ DSP Core and I/O Voltages
⚫ Instrumentation
⚫ Post-Regulation Applications
⚫ Applications With Sequencing Requirements
4 Simplified Application Circuit
RTQ2527D
VIN
V
IN
PGOOD
R
PGOOD
C
IN
EN
V
OUT
VOUT
FB
C
OUT
V
BIAS
VBIAS
R1
C
BIAS
SS
R2
C
SS
GND
Copyright © 2023 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
RTQ2527D_DS-00
December 2023
www.richtek.com
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