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PDF ACT4065 Data sheet ( Hoja de datos )
| Número de pieza | ACT4065 | |
| Descripción | 450 KHz Step-Down Converter | |
| Fabricantes | Microelectronic | |
| Logotipo |  |
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ACT4065
A, 450 KHz Step-Down Converter
DESCRIPTION
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.
Current mode operation provides fast transient
response and eases loop stabilization.
Fault condition protection includes cycle-by-
cycle current limiting and thermal shutdown. In
shutdown mode the regulator draws 25µA of
supply current.
FEATURES
z 2A Output Current
z 0.22Ω Internal Power MOSFET Switch
z Stable with Low ESR Output Ceramic
Capacitors
z Up to 95% Efficiency
z 25µA Shutdown Mode
z Fixed 450KHz Frequency
z Thermal Shutdown
z Cycle-by-Cycle Over Current Protection
z Wide 4.75 to 25V Operating Input
Range
z Output Adjustable from 1.22V to 21V
APPLICATIONS
z TFT LCD Monitors
z Portable DVDs
z Car-Powered or Batter-Powered Equipments
z Set-Top Boxes
z Telecom Power Supplies
z XDSL and Cable Modems and Routers
4.75 to 25
ACT4065
PACKAGE REFERENCE
PACKAGE REFERENCE
Part number
Package
Temperature
ACT4065
C° to +125°C
*A4TC 065 is new advance design and it’s compatible with A4TC 06.5
1
Free Datasheet http://www.Datasheet-PDF.com/
1 page  
Figure 1 – Functional Block Diagram
ACT4065
42-450KHz
Free Datasheet http://www.Datasheet-PDF.com/
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet ACT4065.PDF ] | |
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