The RT9080 is a low-dropout (LDO) voltage regulator featuring an enable function ,operating over a wide input voltage range from 1.2V to 5.5V. The RT9080 delivers a maximum output current of 600mA and is designed for low-power operation, all within a compact package.
The features of low quiescent current, as low as 2μA, and almost zero disable current, are ideal for powering battery equipment for a longer service life. The RT9080 is stable with the ceramic output capacitor over its wide input range from 1.2V to 5.5V and the entire range of output load current (0mA to 600mA).


  • Portable, Battery Powered Equipment
  • Ultra Low Power Microcontrollers
  • Notebook Computers
Status Active
Vin (min) (V) 1.2
Vin (max) (V) 5.5
Vout (min) (V) 0.8
Vout (max) (V) 3.3
Output Adj. Method Fixed;Resistor
Accuracy (+/- %) 2
Iout (max) (mA) 600
Iq (typ) (uA) 2
Vdropout @ rated current (typ) (mV) 310 @ 0.6A
Bias Rail No
Cout Type Ceramic;Tantalum
Charge Pump No
Features Enable Input;Low Dropout;OCP;Stable with Ceramic Capacitor
Package Type ZQFN1x1-4;TSOT-25
  • 2μA Ground Current at no Load
  • PSRR = 75dB at 1kHz
  • Adjustable Output Voltage Available for Specific Applications
  • ±2% Output Accuracy
  • 600mA (VIN ≥ 2.3V) Output Current
  • Low (0.1μA) Disable Current
  • Operating Input Voltage: 1.2V to 5.5V
  • Dropout Voltage: 0.31V at 600mA when VOUT ≥ 3V
  • Support Fixed Output Voltage: 0.8V to 3.3V
  • Stable with Ceramic or Tantalum Capacitor
  • Current-Limit Protection
  • Over-Temperature Protection
  • Available in TSOT-23-5 and ZQFN-4L 1x1 (ZDFN-4L 1x1) Packages
TitleLast UpdateDownload
2μA IQ, 600mA Low-Dropout Linear Regulator2017/05/19