This IC is a step-up DC-DC converter with automatic PWM/PFM switching function.
A step-up DC-DC converter can be configured by using only coil, capacitor, and diode as external components.
It is optimal for applications for mobile equipment that will need high effi ciency due to characteristics of small package or low current consumption.
Also with an automatic PWM/PFM switching function, decrease of effi ciency by current consumption of IC during low load is prevented.

1.	Step-up is possible from input voltage of 0.9 V, so operations are possible with only one battery.
2.	It has realized high effi ciency with low current consumption and PFM operation.
3.	Adopted small package.

SOT-26B

1. Power supply for mobile equipment such as digital still cameras, electronic organizers, PDA, etc.
2. Power supply for audio equipment such as portable CD, MD, etc.
3. Power supply for microprocessor