Dual, Ultra Low Noise, High PSRR 300mA Linear Regulator



Ultra low noise, low dropout and high PSRR linear regulator. The output voltage of MP20041 ranges from 1.2V to 3.6V in 100mV increments and 1% accuracy by operating from a +2.5V to +6.0V input. The MP20041 can supply up to 300mA of load current at each channel. The MP20041 uses an internal PMOS as the pass element, which consumes 114μA supply current (both LDOs on) at no load condition. The EN1 and EN2 pins control each output respectively. When both channels shutdown simultaneously, the chip will be turned off and consume nearly zero operation current which is suitable for battery-power devices. The MP20041 features current limit and over temperature protection.


  • Wide Operating Voltage Ranges: 2.5V to 6V
  • Two LDOs in a 2mmx2mm TQFN8 Package
  • Up to 300mA Output Current (Per Channel)
  • Dual Enable Pins Control Each Output
  • 72dB PSRR at 10kHz
  • 11μVRMS Ultra Low Noise Output with No Noise Bypass Capacitor Required
  • 73mV Dropout at 100mA Load
  • Very Fast Line/Load Transient Responses with Small Input/Output Capacitor
  • Current Limit and Thermal Protection


  • Vin (min) (V)2.5
  • Vin (max) (V)6
  • Regulated Outputs2
  • Iout (mA)300
  • Accuracy (±%)1
  • Noise (µVrms)11
  • Iq (typ) (µA)114
  • PSRR @ 1kHz (dB)72
  • Iout2 (mA)300
  • PackageTQFN-8 (2x2)
  • GradeCatalog
  • Fixed Output 2 Options2.5,1.8,3.3,2.7,3.3,3,3.3,3.3,1.3
  • Special FeaturesCurrent Limiting
  • Vdropout (mV)75 (IO: 100mA), 220 (IO: 300mA)
  • Fixed Output Options1.8,2.8,3.3,3.3,2.8,3,2.5,1.8,1.8