The RT9169/H series are 100mA ultra-low quiescent current CMOS low dropout (LDO) regulator designed for battery-powered equipments. The output voltages range from 1.2V to 5V with 0.1V per step.
The other features include 4μA ultra-low quiescent, low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio.


  • Battery-Powered Equipment
  • Palmtops, Notebook Computers
  • Hand-held Instruments
  • PCMCIA Cards
Key Spec.
RT9169 RT9169H
Status Active Active
Vin (min) (V) 2 2
Vin (max) (V) 6 6
Vout (min) (V) 1.2 1.2
Vout (max) (V) 5 5
Output Adj. Method Fixed Fixed
Accuracy (+/- %) 2 2
Iout (max) (mA) 100 100
Iq (typ) (uA) 4 4
Vdropout @ rated current (typ) (mV) 450 @ 0.1A 450 @ 0.1A
Cout Type Ceramic;Electrolytic Ceramic;Electrolytic
Features Enable Input;Low Dropout;OCP Enable Input;Low Dropout;OCP
Package Type SOT-23;SOT-25;SOT-89 SOT-23;SOT-25;SOT-89
  • Ultra-Low Quiescent Current: 4μA
  • Low Dropout: 450mV at 100mA
  • Wide Operating Voltage Ranges: 2V to 6V
  • Current Limiting Protection
  • Only 1μF Output Capacitor Required for Stability
  • High Power Supply Rejection Ratio
  • RoHS Compliant and 100% Lead (Pb)-Free
TitleLast UpdateDownload
100mA, 4μA Quiescent Current CMOS LDO Regulator2011/10/05
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT9169-33GVSOT-233000 Request Buy from Distributor
RT9169H-12GBSOT-253000 Request Buy from Distributor