High Voltage, Low Quiescent, 60mA LDO Regulator


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The RT9022 is designed for positive CCD bias applications with critical performance and space requirements. The RT9022 performance is optimized for battery-powered systems to deliver low noise and low quiescent current and with soft start function.
The RT9022 also works well with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications and consumes less than 1μA in shutdown mode.
The other features include ultra low dropout voltage, high output accuracy, and current limiting protection. The part is available in the SOT-23-6, TSOT-23-6 and SC-70-6 packages.


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Key Spec.
Status Active
Vin (min) (V) 5
Vin (max) (V) 20
Vout (min) (V) 1.25
Vout (max) (V) 18.0
Output Adj. Method Resistor
Accuracy (+/- %) 1
Iout (max) (mA) 60
Iq (typ) (uA) 40
Vdropout @ rated current (typ) (mV) 200 @ 0.03A
Cout Type Ceramic
Features Adjustable Soft-Start;Enable Input;OCP;Stable with Ceramic Capacitor
Package Type SOT-26
  • Low Quiescent Current (Typically 40μA)
  • Wide Operating Voltage Ranges : 5V to 20V
  • Ultra-Fast Transient Response
  • Tight Load and Line Regulation
  • Current Limiting Protection
  • Thermal Shutdown Protection
  • Adjustable Soft Start Time
  • RoHS Compliant and 100% Lead (Pb)-Free
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High Voltage, Low Quiescent, 60mA LDO Regulator2007/07/18
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High Voltage, Low Quiescent, 60mA LDO Regulator 2015/05/19
Technical Documents
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Richtek Selection Guide [Oct., 2020]2020/12/30
Additional Documents
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Power Management Introduction and Selection Guide 2020/12/07