The RT9058 is a low dropout (LDO) linear voltage regulator that features high input voltage, low dropout voltage, ultra-low operating current, and miniaturized packaging. With quiescent current as low as 2μA, the RT9058 is ideal for battery-powered equipment.

The RT9058's stability requirements are easily met with all types of output capacitors, including tiny ceramic capacitors, over its wide input range (3.5V to 36V) and its load current range (0mA to 100mA). The RT9058 offers standard output voltages of 2.5V, 3V, 3.3V, 5V, 6V, 9V and 12V.


  • Portable, Battery Powered Equipment
  • Ultra Low Power Microcontrollers
  • Notebook Computers
Key Spec.
Status Active
Vin (min) (V) 3.5
Vin (max) (V) 36
Vout (min) (V) 2.5
Vout (max) (V) 12
Output Adj. Method Fixed
Accuracy (+/- %) 2
Iout (max) (mA) 100
Iq (typ) (uA) 2;3.5
Vdropout @ rated current (typ) (mV) 300 @ 0.01A
Cout Type Ceramic;Tantalum
Features OCP;Stable with Ceramic Capacitor
Package Type SOT-23;SOT-89
  • 2μA Quiescent Current
  • ±2% Output Accuracy
  • 100mA Output Current
  • 3.5V to 36V Input Voltage Range
  • Dropout Voltage : 0.35V at 10mA/VCC 5V
    0.5V at 10mA/VCC 3.5V
  • Fixed Output Voltage : 2.5V, 3V, 3.3V, 5V, 6V, 9V, 12V
  • Stable with Ceramic or Tantalum Capacitors
  • Current Limit Protection
  • Over Temperature Protection
  • SOT-23-3, SOT-89-3 Packages
  • RoHS Compliant and Halogen Free
TitleLast UpdateShareDownload
36V, 2μA IQ, 100mA Low Dropout Voltage Linear Regulator2013/11/04
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
Powering Microcontrollers from Industrial Supply Rails2014/05/02
Additional Documents
Title Last Update ShareDownload
Power Management Introduction and Selection Guide 2020/12/07
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT9058-25GVSOT-233000 Not available Not available
RT9058-30GVLSOT-233000 Request Not available
RT9058-30GVLSOT-233000 Request Buy from Distributor
RT9058-33GVSOT-233000 Request Not available
RT9058-33GVSOT-233000 Request Buy from Distributor
RT9058-33GVLSOT-233000 Request Not available
RT9058-33GVLSOT-233000 Request Buy from Distributor
RT9058-33GXSOT-891000 Request Not available
RT9058-33GXSOT-891000 Request Buy from Distributor
RT9058-50GVSOT-233000 Request Not available
RT9058-50GVSOT-233000 Request Buy from Distributor
RT9058-50GVLSOT-233000 Request Not available
RT9058-50GVLSOT-233000 Request Buy from Distributor
RT9058-50GXSOT-891000 Request Not available
RT9058-50GXSOT-891000 Request Buy from Distributor
RT9058-60GVLSOT-233000 Not available Not available
RT9058-90GVLSOT-233000 Not available Not available
RT9058-90GXSOT-891000 Not available Not available
RT9058-C0GVSOT-233000 Not available Not available
RT9058-C0GXSOT-891000 Not available Not available