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General Description

The AP1501 is a fully integrated step-down DC/DC converter, with the ability to drive 3A load without the need of additional driver components. The AP1501 operates at a switching frequency of 150KHZ enabling the use of small size filter components. As a result, board space is reduced and BOM costs are lowered.

Features

? Output voltage: 3.3V, 5V, 12V and adjustable output version

? Adjustable version output voltage range, 1.23V to 37V+4

? 150KHZ +15 fixed switching frequency

? Voltage mode non-synchronous PWM control

? Thermal-shutdown and current-limit protection

? ON/OFF shutdown control input

? Operating voltage can be up to 40V

? Output load current: 3A

? Low power standby mode

? Built-in switching transistor on chip

? Lead Free packages: TO263-5L and TO220-5L(R)

? TO263-5L and TO220-5L(R): Available in “Green” Molding Compound (No Br, Sb)

? Lead Free Finish/RoHS Compliant (Note 1)

Applications

? Simple High-efficiency step-down regulator

? On-card switching regulators

? Positive to negative converter