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RT9266 Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT9266 Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 14 page  RT9266 1 DS9266-12 May 2007 www.richtek.com Features l 1.0V Low Start-up Input Voltage l High Supply Capability to Deliver 3.3V 100mA with 1 Alkaline Cell l 17 µA Quiescent (Switch-off) Supply Current l Zero Shutdown Mode Supply Current l 90% Efficiency l 450kHz Fixed Switching Frequency l Providing Flexibility for Using Internal and External Power Switches l Small SOT-23-6 & SOT-89-5 Package l RoHS Compliant and 100% Lead (Pb)-Free Pin Configurations Applications l PDA l DSC l LCD Panel l RF-Tags l MP3 l Portable Instrument l Wireless Equipment Tiny Package, High Efficiency, Step-up DC/DC Converter Ordering Information General Description The RT9266 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 RT9266 suitable for 1 to 4 battery cells applications of providing up to 300mA output current. The 450kHz high switching rate minimized the size of external components. Besides, the 17 µA low quiescent current together with high efficiency maintains long battery lifetime. The output voltage is set with two external resistors. Both internal 2A switch and driver for driving external power devices (NMOS or NPN) are provided. (TOP VIEW) SOT-23-6 Marking Information For marking information, contact our sales representative directly or through a RichTek distributor located in your area, otherwise visit our website for detail. SOT-89-5 Note : There is no pin1 indicator on top mark for SOT-23-6 type, and pin 1 will be lower left pin when reading top mark from left to right. Note : RichTek Pb-free and Green products are : }RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. }Suitable for use in SnPb or Pb-free soldering processes. }100% matte tin (Sn) plating. EN EXT GND LX VDD FB 4 23 5 6 1 EN VDD FB LX GND 23 4 5 1 RT9266 Package Type E : SOT-23-6 X5 : SOT-89-5 Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- cial Standard) |
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