60V, 30μA IQ, Low Dropout Voltage Linear Regulator


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The RT9068 family are high voltage (60V operation), low quiescent current low dropout linear regulators capable of supplying 50mA of output current with a maximum dropout voltage of 300mV. The low quiescent and shutdown currents (30μA operating and 2μA shutdown) are ideal for use in battery-powered and/or high voltage systems. Ground current is well-controlled in all conditions, including dropout.

The RT9068 family operates with any reasonable output capacitors including 1μF low-ESR ceramic types and features excellent line and load transient responses. Internal protection circuitry includes reverse-battery protection, current limiting, thermal shutdown, and reverse current protection. Output voltage accuracy is ±2% over the entire line and load range.

These devices are available in 3 fixed-output versions (2.5V, 3.3V, 5V) as well as a version that supports an adjustable output voltage (1.25V to 60V). All versions come in SOP-8 and MSOP-8 packages with an exposed pad for high power dissipation.


  • Low Current, High Voltage Regulators
  • Battery Powered Applications
  • Telecom and Datacom Applications
  • Automotive Application
Key Spec.
Status Active
Vin (min) (V) 4.5
Vin (max) (V) 60
Vout (min) (V) 1.25
Vout (max) (V) 60
Output Adj. Method Fixed;Resistor
Accuracy (+/- %) 2
Iout (max) (mA) 50
Iq (typ) (uA) 30
Vdropout @ rated current (typ) (mV) 15 @ 0.001A;150 @ 0.05A;55 @ 0.01A
Bias Rail No
Cout Type Aluminum;Ceramic;Tantalum
Charge Pump No
Features Low Dropout;Stable with Ceramic Capacitor
Package Type MSOP-8(PP);PSOP-8
  • Wide Input Voltage Range : 4.5V to 60V
  • Low Quiescent Current : 30μA Operating and 2μA Shutdown
  • Low Dropout Voltage : 300mV Maximum at 50mA
  • Fixed (2.5V, 3.3V, 5V) and Adjustable (1.25V to 60V) Versions
  • ±2% Output Tolerance
  • Stable with 1μF Output Capacitor (Aluminum, Tantalum or Ceramic)
  • Inherent Reverse-Current Protection (No diode needed)
  • −60V Reverse-Battery Protection
TitleLast UpdateShareDownload
60V, 30μA IQ, Low Dropout Voltage Linear Regulator2013/07/29
Technical Documents
TitleLast UpdateShareDownload
Richtek Wide Input Voltage Range DC/DC Power Solutions for Industrial, Automotive and LED lighting applications2020/12/30
Richtek Selection Guide [Oct., 2020]2020/12/30
Wide Input Voltage LDO RT9068 for Automotive and Industrial Applications2016/07/07
Powering Microcontrollers from Industrial Supply Rails2016/06/21
Additional Documents
Title Last Update ShareDownload
Power Management Introduction and Selection Guide 2020/12/07
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT9068-25GSPPSOP-82500 Not available Buy from Distributor
RT9068-33GFPMSOP-8(PP)2500 Not available Buy from Distributor
RT9068-33GSPPSOP-82500 Not available Not available
RT9068-50GFPMSOP-8(PP)2500 Not available Buy from Distributor
RT9068-50GSPPSOP-82500 Not available Buy from Distributor
RT9068GSPPSOP-82500 Not available Buy from Distributor