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The PW2163 is a high efficiency 500 kHz synchronous step-down DC-DC converter capable of

delivering 3A current. The PW2163 operates over a wide input voltage range from 4.5V to 18V and

integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction

loss. Low output voltage ripple and small external inductor and capacitor sizes are achieved with 500

kHz switching frequency. It adopts the instant PWM architecture to achieve fast transient responses

for high step down