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...
ST777: 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 ...
SeekIC Buyer Protection PLUS - newly updated for 2013!
268 Transactions
All payment methods are secure and covered by SeekIC Buyer Protection PLUS.
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 |
The ST777/778/779 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 ST777/778/779'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.