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The RTQ2531A is a low-noise, high accuracy, low-dropout linear regulator (LDO), and is capable of sourcing 500mA. The device supports single input supply voltage as low to 1.7V, which makes it easy to use.

The RTQ2531A is designed with high PSRR and low noise, which can meet the requirements of noise-sensitive applications such as RF, PLL, Clocking and analog circuits. The regulator control circuitry includes a programmable soft-start circuit and short circuit, reverse current, and over-temperature protection. Other features include an enable input and a power-OK output. The device is fully specified over the temperature range of TJ = -40°C to 125°C and is offered in a WDFN-8SL 2x2 package.

Applications

  • Portable Electronic Device
  • Optical Modules
  • Camera Modules
  • PLL/Synthesizer, Clocking Sensors
  • Medium-Current, Noise Sensitive Application
Key Spec.
RTQ2531A
Status Active
Vin (min) (V) 1.7
Vin (max) (V) 5.5
Vout (min) (V) 0.6
Vout (max) (V) 5.3
Output Adj. Method Resistor
Accuracy (+/- %) 1.5
Iout (max) (mA) 500
Iq (typ) (uA) 160
Vdropout @ rated current (typ) (mV) 150 @ 0.5A
Bias Rail No
Cout Type Ceramic
Features Enable Input;Extra Low Noise;High PSRR;Low Dropout;OCP;Power Good;Stable with Ceramic Capacitor
Package Type WDFN2x2-8S
Features
  • Input Voltage Range : 1.7V to 5.5V
  • Output Voltage Range : 0.6V to 5.3V
  • Accurate Voltage Reference
    ► 0.6V ±1.5%, Over -40°C to 125°C
  • Ultra High PSRR : 48dB at 500kHz
  • Excellent Noise Immunity : 25μVRMS
  • Ultra Low Dropout Voltage : 150mV at 500mA
  • Enable Control
  • Short-Circuit Protection
  • Output-to-Input Reverse Current Protection
  • Support Power-OK Output Indicator Function
  • RoHS Compliant and Halogen Free
Datasheet
TitleLast UpdateDownload
500mA, 5.5V, Low Noise Low Dropout Regulator2022/10/18
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