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1.8 to 3.6V output, 0.9V to 1.8V input voltage doubler
STAR4003 is designed in a TSMC 40nm process with 3.3V tolerant devices. It outputs an open loop doubled voltage from the input supply.
The IP integrates two NMOS power switches and two PMOS power switches and a user configurable oscillator which is used to clock the charge pump. STAR4003 allows the user to supply a higher voltage to external components, I/O supply voltages, or flash memory. This is advantageous when the design requires several external ICs which operate from a higher voltage than the nominal input supply. The converter has a typical efficiency of 79% at a low output current of 100uA, and over 90% typical efficiency at output currents of 2mA. STAR4003 can be customized to fit different applications, whereby the size of the output stage may be optimized to meet the application's output voltage, frequency, and efficiency requirements.
The IP integrates two NMOS power switches and two PMOS power switches and a user configurable oscillator which is used to clock the charge pump. STAR4003 allows the user to supply a higher voltage to external components, I/O supply voltages, or flash memory. This is advantageous when the design requires several external ICs which operate from a higher voltage than the nominal input supply. The converter has a typical efficiency of 79% at a low output current of 100uA, and over 90% typical efficiency at output currents of 2mA. STAR4003 can be customized to fit different applications, whereby the size of the output stage may be optimized to meet the application's output voltage, frequency, and efficiency requirements.
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Block Diagram of the 1.8 to 3.6V output, 0.9V to 1.8V input voltage doubler
