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The RT9278 is a compact, high efficiency, synchronous step-up converter, it provides a power supply solution for products powered by either two-cell, three-cell Alkaline/NiMH or one-cell Li-Ion/Li-polymer battery.The RT9278 is boost converter with PWM control loop, provide up to 95% efficiency by using a synchronous rectifier. The maximum peak current in the internal switch is limited to up to 2A.It keeps the output voltage regulated when the input voltage exceeds the setting output voltage. The output voltage can be set by an external resister divider, or be fixed to reduce external components. It integrates a linear controller for linear regulator.RT9278 is available in VDFN-10L 3x3 package.
95% Efficiency Synchronous Boost Converter
High Supply Capability
2A Current Limit
Input Voltage Range : 1.5V to 5.5V
600kHz Fixed Switching Rate
Adjustable Output Voltage Options Up to 5.5V
Output Voltage Keep Regulated when Input VoltageExceed Setting Output Voltage
1μA Supply Current in Shutdown Mode
External Compensation Network
Build in Linear Controller for Linear Regulator
Over Temperature Protection
Small 10-Lead VDFN Package
RoHS Compliant and 100% Lead (Pb)-Free
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