LN2351
Super-Small Package VFM Control Step-up Switching
Regulator
■ General Description
The LN2351 Series is a CMOS VFM-control step-up switching
regulator that mainly consists of a reference voltage source, an oscillator, and a comparator.
enabling products with a low ripple over a wide range, high efficiency, and high output current.
Products with a fixed duty ratio of 75 % （ Lower Output Voltage ） or 88%(Higher Output Voltage) are also available.
With the LN2351 Series, a step-up switching
regulator can be configured by using an external coil, capacitor, and diode.
A protection circuit turns off the built-in MOS FET when the voltage at the CONT pin exceeds the limit to prevent it from b...