GENERAL DESCRIPTION
The ML4865 is a high voltage, continuous conduction boost regulator designed for DC to DC conversion in multiple cell battery powered systems. Continuous conduction allows the regulator to maximize output current for a given inductor. The maximum switching frequency can exceed 200kHz, allowing the use of small, low cost inductors. The ML4865 is capable of start-up with input voltages as low as 1.8V and generates a 12V output with output voltage accuracy of ±4%.
   
FEATURES
■ Guaranteed full load start-up and operation at 1.8V
    input
■ Continuous conduction mode for high output current
■ Very low quiescent current
■ Pulse frequency modulation and internal synchronous
    rectification for high efficiency
■ Maximum switching frequency > 200kHz
■ Minimum external components
■ Low ON resistance internal switching FETs
■ Fixed 12V output can be adjusted to lower output
    voltages