The RT9013 is a high-performance, 500mA LDO regulator, offering extremely high PSRR and ultra-low dropout. Ideal for portable RF and wireless applications with demanding performance and space requirements.
The RT9013 quiescent current as low as 25μA, further prolonging the battery life. The RT9013 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices.
The RT9013 consumes typical 0.7μA in shutdown mode and has fast turn-on time less than 40μs. The other features include ultra-low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in the SC-82, SOT-23-5, SC-70-5 and WDFN-6L 2x2 package.


  • CDMA/GSM Cellular Handsets
  • Portable Information Appliances
  • Laptop, Palmtops, Notebook Computers
  • Hand-Held Instruments
  • Mini PCI & PCI-Express Cards
  • PCMCIA & New Cards
Key Spec.
Status Active
Vin (min) (V) 2.2
Vin (max) (V) 5.5
Vout (min) (V) 1.2
Vout (max) (V) 3.3
Output Adj. Method Fixed
Accuracy (+/- %) 2
Iout (max) (mA) 500
Iq (typ) (uA) 25
Vdropout @ rated current (typ) (mV) 250 @ 0.5A
Cout Type Ceramic
Features Enable Input;Extra Low Noise;Fast Transient Response;High PSRR;Low Dropout;OCP;Output Discharge;Stable with Ceramic Capacitor
Package Type SC-70-5;SOT-25;WDFN2x2-6;SC-82
  • Wide Operating Voltage Ranges : 2.2V to 5.5V
  • Low Dropout : 250mV at 500mA
  • Ultra-Low-Noise for RF Application
  • Ultra-Fast Response in Line/Load Transient
  • Current Limiting Protection
  • Thermal Shutdown Protection
  • High Power Supply Rejection Ratio
  • Output Only 1μF Capacitor Required for Stability
  • TTL-Logic-Controlled Shutdown Input
  • RoHS Compliant and 100% Lead (Pb)-Free
TitleLast UpdateDownload
500mA, Low Dropout, Low Noise Ultra-Fast Without Bypass Capacitor CMOS LDO Regulator2008/05/27
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Additional Documents
Title Last Update ShareDownload
Power Management Introduction and Selection Guide 2020/12/07