The RTQ2520 is a high-current (2A), low-noise (7μVRMS), high accuracy (1% over line, load, and temperature), low-dropout linear regulator (LDO) capable of sourcing 2A with extremely low dropout (max. 125mV). The device supports single input supply voltage as low to 1.1V that makes it easy to use.

The low noise, high PSRR and high output current capability makes the RTQ2520 ideal to power noise-sensitive devices such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components. With very high accuracy, remote sensing, and soft-start capabilities to reduce inrush current, the RTQ2520 is ideal for powering digital loads such as FPGAs, DSPs, and ASICs.

The external enable control and power good indicator function makes 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 the WDFN-8EL 3x3 package.


  • Portable Electronic Device
  • Wireless Infrastructure : SerDes, FPGA, DSP
  • RF, IF Components : VCO, ADC, DAC, LVDS
Status Active
Vin (min) (V) 1.1
Vin (max) (V) 6.5
Vout (min) (V) 0.5
Vout (max) (V) 5.5
Output Adj. Method Resistor
Accuracy (+/- %) 1
Iout (max) (mA) 2000
Iq (typ) (uA) 3700
Vdropout @ rated current (typ) (mV) 125 @ 2A
Bias Rail No
Cout Type Ceramic
Charge Pump Yes
Features Enable Input;Extra Low Noise;High PSRR;Low Dropout;OCP;Output Discharge;Power Good
Package Type WDFN3x3-8E
  • Input Voltage Range : 1.1V to 6.5V
  • Output Voltage Range : 0.5V to 5.5V
  • Accurate Output Voltage Accuracy (1%) Over Line, Load and Temperature
  • Ultra High PSRR : 38dB at 500kHz
  • Excellent Noise Immunity
    ► 7μVRMS at 0.5V Output
    ► 10μVRMS at 3.3V Output
  • Ultra Low Dropout Voltage : 125mV at 2A
  • Enable Control
  • Programmable Soft-Start Output
  • Stable with a 22μF or Larger Ceramic Output Capacitor
  • Support Power-Good Indicator Function
  • RoHS Compliant and Halogen Free
TitleLast UpdateDownload
2A, 6.5V, Ultra Low Noise, Ultra Low Dropout Linear Regulator2021/08/23
Technical Documents
TitleItem TypeLast UpdateDownload
立锜全系列产品选择指南 [Jan., 2024] Selection Guide2024/01/19
立锜精选产品 Product Tree 手册 [Aug., 2023] Selection Guide2023/08/07
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RTQ2520GQWWDFN3x3-8E1500 Request Buy from Distributor