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The RTQ2531W 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 RTQ2531W 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 Applications
Key Spec.
RTQ2531W
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
Charge Pump Yes
Features Enable Input;Extra Low Noise;High PSRR;Low Dropout;OCP;Output Discharge;Power Good;SCP;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
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2024] Selection Guide2024/01/18
Richtek Featured Product Tree [Aug., 2023] Selection Guide2023/08/07
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RTQ2531WGQWWDFN2x2-8S2,500 Request Digikey 6,647 Buy
Mouser 2,011 Buy
Evaluation Board
Part NumberDistributorStockBuy From Authorized Distributor
EVB_RTQ2531WGQW Digikey 4 Buy
Mouser 0 Lead-Time: 14 weeks
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