General Description

The RTQ2513T is a high-current (3A), low-noise (7μVRMS),

high accuracy (1 over line, load, and temperature), lowdropout

linear regulator (LDO), and is capable of sourcing

3A with extremely low dropout (max. 180mV). The device

output voltage is pin-selectable (up to 3.65V) using a PCB

layout without the need of external resistors, thus reducing

overall component count. Designers can achieve higher

output voltage with the use of external resistor divider.

The device supports single input supply voltage as low as

1.1V that makes it easy to use.

The low noise, high PSRR, and high output current

capability make the RTQ2513T ideal to power noisesensitive

devices such as analog-to-digital converters

ADCs), digital-to-analog converters (DACs), and RF

components. To reduce inrush current with very high

accuracy, remote sensing, and soft-start capabilities, the

RTQ2513T is ideal for powering digital loads such as

FPGAs, DSPs, and ASICs.

The external enable control and power good indicator

function make the sequence control easier. The output

noise immunity is enhanced by adding external bypass

capacitor on NR/SS pin. The device is fully specified over

the temperature range of TJ = −40°C to 125°C and is offered

in a WQFN-20L 3.5x3.5 package.

Features

 Input Voltage Range : 1.1V to 6.5V

 Two Output Voltage Modes

 0.5V to 5.5V (Set by a Resistive Divider)

 0.5V to 3.65V (Set via PCB Layout, No External

Resistor Required)

 Accurate Output Voltage Accuracy (1) Over Line,

Load and Temperature

 Ultra High PSRR : 40dB at 500kHz

 Excellent Noise Immunity

7μVRMS at 0.5V Output

10μVRMS at 3.3V Output

 Ultra Low Dropout Voltage : 180mV at 3A

 Enable Control

 Programmable Soft-Start Output

 Stable with 10μF or higher Output Ceramic

Capacitor

 Support Power-Good Indicator Function

 RoHS Compliant and Halogen Free

Applications

 Portable Electronic Devices

 Wireless Infrastructure : SerDes, FPGA, DSP

 RF, IF Components : VCO, ADC, DAC, LVDS