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ACT4065 Datasheet PDF

Microelectronic ACT4065

The ACT4065 is a monolithic step-down switch mode converter with a built in internal power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. The ACT4065 requires a minimum number of readily available standard external components.
Part No. ACT4065
Datasheet ACT4065 Download
Manufacturer Microelectronic
Description 450 KHz Step-Down Converter
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ACT4065 datasheet page 1 preview

DESCRIPTION

Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-bycycle current limiting and thermal shutdown. In shutdown mode the regulator draws 25µA of supply current.

FEATURES

z z z z z z z z z z 2A Output Current 0.22Ω Internal Power MOSFET Switch Stable with Low ESR Output Ceramic Capacitors Up to 95% Efficiency 25µA Shutdown Mode Fixed 450KHz Frequency Thermal Shutdown Cycle-by-Cycle Over Current Protection Wide 4.75 to 25V Operating Input Range Output Adjustable from 1.22V to 21V

APPLICATIONS

z z z z z z TFT LCD Monitors Portable DVDs Car-Powered or Batter-Powered Equipments Set-Top Boxes Telecom Power Supplies XDSL and Cable Modems and Routers 4.75 to 25 ACT4065 PACKAGE REFERENCE PACKAGE REFERENCE Part number Package Temperature ° ° C to +125 C ACT4065 *AC4 T 065 is new advance design and it’s compatible with AC4 T 065. 1 Free Datasheet A, 450 KHz Step-Down Converter ACT4065

ABSOLUTE MAXIMUM RATINGS

(1) Supply Voltage (VIN) ...........................................
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