Tiny Package, High Efficiency, Step-Up DC/DC Converter


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The RT9266B is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp generator, comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load currents. It operates in stable waveforms without external compensation.The low start-up input voltage below 1V makes RT9266B suitable for 1 to 4 battery cells applications with a 500mA internal switch. The 550kHz high switching rate minimized the size of external components. Besides, the 25μA low quiescent current together with high efficiency maintains long battery lifetime.


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Key Spec.
Status Active
Vin (min) (V) 2
Vin (max) (V) 6.5
Vout (min) (V) 2.6
Vout (max) (V) 6
Output Adj. Method Resistor
Iq (typ) (mA) 0.15
SW Current Limit (typ) (A) 0.5
Freq (typ) (kHz) 550
Ron (typ) (Ohm) 0.35
Features Enable Input;OCP;UVP
Package Type SOT-26
  • 1V Low Start-up Input Voltage at 1mA Load
  • 25μA Quiescent (Switch-off) Supply Current
  • Zero Shutdown Mode Supply Current
  • 90% Efficiency
  • 550kHz Switching Frequency at 3.3V VDD
  • Providing Flexibility for Using Internal and External Power Switches
  • Small SOT-23-6 Package
  • RoHS Compliant and 100% Lead (Pb)-Free
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Tiny Package, High Efficiency, Step-Up DC/DC Converter2011/10/05
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Tiny Package, High Efficiency, Step-Up DC/DC Converter 2015/05/19
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT9266BGESOT-263000 Not available Buy from Distributor