詳細信息
The ME2109 series is a CMOS step-upswitching regulator which mainly consists of a
reference voltage source, an oscillation circuit,an error amplifier, a phase compensation circuit,
a PWM/PFM switching control circuit. With anexternal low-ON-resistance Nch Power MOS,
this product is applicable to applicationsrequiring high efficiency and high output current.
The ME2109 series switches its operation to thePFM control circuit whose duty ratio is 15 % with
to the PWM/PFM switching control circuit undera light load and to prevent decline in the
efficiency by IC operation current.