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General Description：

The LY9730 is a constant frequency, current mode

step-down converter. It is ideal for powering portable

equipment that runs from a single cell lithium-Ion (Li+)

battery. Switching frequency is internally set at 1.5MHz,

allowing the use of small surface mount inductor and

capacitors. Automatic PWM/PFM mode operation

increases efficiency and decreases output voltage ripple at

light loads, further extending battery life.

Features：

High Efficiency: 96％

1.5MHz Constant Switching Frenquency

Output Current: 1A

Shutdown Current: <1uA

Short Circuit Protection