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ST779

Specifications Symbol Parameter Value Unit VCC DC Input Voltage to GND -0.3 to +7 V LX Switch off Pin Voltage -0.3 to +7 V Switch on Pin Voltage 30 secshort to IN or OUT OUT,SHDN</a> Output,Shutdown Voltage -0.3 to +7 V AGND to PGND Analogand Power Groun...

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SeekIC No. : 004506823 Detail

ST779: Specifications Symbol Parameter Value Unit VCC DC Input Voltage to GND -0.3 to +7 V LX Switch off Pin Voltage -0.3 to +7 V Switch on Pin Voltage 30 secshort to IN or OUT ...

ST779 Data Sheet

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Part Number:
ST779
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Specifications

Symbol Parameter Value Unit
VCC DC Input Voltage to GND -0.3 to +7 V
LX Switch off Pin Voltage -0.3 to +7 V
Switch on Pin Voltage 30 secshort to IN or OUT  
OUT,SHDN</a> Output,Shutdown Voltage -0.3 to +7 V
AGND to PGND Analogand Power Ground -0.3 to+0.3 V
FB FB Pin Voltage -0.3 to (OUT +0.3) V
PTOT Continuous Power Dissipation(at TA=85°C)DIP-8 550 mW
 PTOT Continuous Power Dissipation(at TA=85°C)SO-8 344
TSTG Storage Temperature Range -40 to 150 °C
TOP Operating Ambient Temperature Range 0 to 85 °C



Description

The ST777/778/ST779 are dc-dc converters that step-up from low voltage inputs requiring only three external components,an inductor (typically 22µH)and two capacitors.The device includea Sinchronous Rectifier that eliminates the need for an external catch diode,and allows regulation even when the input is greater than the output.

Unlike others step-up DC-DC converters the ST777/778/ST779's Sinchronous Rectifierturns off in the shut down mode,fully disconnecting the output from the source.This eliminates the current drain associated with conventional step-up converters when off or in shut down.Supply current is 270µA under no load and only 20µA in standby mode.




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