The MP2009 is an ultra low noise, low dropout linear regulator. The output voltage of MP2009 ranges from 1.5V to 4.5V in 100mV increments and 1% accuracy by operating from a +2.0V to +6.0V input. It is designed to deliver up to 120mA continuous output current. It achieves a low 120mV dropout for full load current. The MP2009 uses an internal PMOS as the pass element, which consumes 50µA supply current at no load condition. New innovative design techniques make MP2009 achieve ultra-low output voltage noise of 16µVRMS without a noise bypass capacitor. The MP2009 are designed and optimized to work with low value, low cost ceramic capacitors in space-limiting and performance consideration. It requires only 1µF (typ) of output capacitance for stability with any load.
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The EV2009EE-00A evaluation board demonstrates the performance of MP2009, an ultra low noise, low dropout linear regulator. It operates from a 2V to 6V input voltage and regulates the output voltage range from 1.5V to 4.5V in 100mV increments.
The EV2009EE-00A can supply up to 120mA of load current with a typical dropout voltage of 172 mV. It provides thermal overload and current limit protection, stability with ultra low ESR ceramic capacitors as low as 1uF, and very fast transient response.