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Sl9266 small package, high efficiency, boost DC / DC converter
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General Description
TheSL9266is a compact, high efficiency, and low voltage step-up DC/DC converter with anAdaptive 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 makesSL9266 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 17µA 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.


Features

1.0V Low Start-up Input Voltage
 High Supply Capability to Deliver 3.3V 100mA with
1 Alkaline Cell
 17A Quiescent (Switch-off) Supply Current
Zero Shutdown Mode Supply Current
90% Efficiency
 450kHz Fixed Switching Frequency
 Providing Flexibility for Using Internal and External
Power Switches
 Small SOT-26 & SOT89-5 Package


Applications
PDA
DSC
LCD Panel
RF-Tags
MP3
Portable Instrument
Wireless Equipment
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