The RT9080 is a low-dropout (LDO) voltage regulators with enable function that operates from 1.2V to 5.5V. It provides up to 600mA of output current and offers low-power operation in miniaturized packaging.

The features of low quiescent current as low as 2μA and almost zero disable current is ideal for powering the battery equipment to 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
Key Spec.
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 by Specific Application
  • ±2% Output Accuracy
  • 600mA (VIN ≥ 2.3V) Output Current with EN
  • Low (0.1μA) Disable Current
  • 1.2V to 5.5V Operating Input Voltage
  • 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
  • TSOT-23-5 and ZQFN-4L 1x1 (ZDFN-4L 1x1) Packages Available
TitleLast UpdateShareDownload
2μA IQ, 600mA Low-Dropout Linear Regulator2016/03/29
Technical Documents
TitleLast UpdateShareDownload
Richtek Selection Guide [Oct., 2022]2022/10/01
Multi-Source Power Management Design2022/04/26
Power IC Solutions for IoT/Portable/Wearable/Battery-Powered Applications [Sep., 2018]2018/09/01
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT9080-12GJ5TSOT-253000 Request Buy from Distributor
RT9080-12GQZZQFN1x1-42500 Not available Not available
RT9080-18GJ5TSOT-253000 Request Not available
RT9080-18GJ5TSOT-253000 Request Buy from Distributor
RT9080-18GQZZQFN1x1-42500 Not available Not available
RT9080-25GJ5TSOT-253000 Request Buy from Distributor
RT9080-28GJ5TSOT-253000 Not available Not available
RT9080-30GJ5TSOT-253000 Not available Not available
RT9080-33GJ5TSOT-253000 Request Not available
RT9080-33GJ5TSOT-253000 Request Buy from Distributor
RT9080-33GQZZQFN1x1-42500 Not available Not available
RT9080N-08GJ5TSOT-253000 Request Not available
RT9080N-08GJ5TSOT-253000 Request Buy from Distributor
RT9080N-12GJ5TSOT-253000 Not available Not available
RT9080N-18GJ5TSOT-253000 Not available Not available
RT9080N-33GJ5TSOT-253000 Not available Not available