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ST1S50 Datasheet(PDF) 14 Page - STMicroelectronics

Part # ST1S50
Description  Solid state disk drive, Blu-ray, DVD
PDF  29 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1S50 Datasheet(HTML) 14 Page - STMicroelectronics

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Functional description
ST1S50
14/29
DocID025723 Rev 4
The HICCUP is disabled during the startup to allow the VOUT to start up properly in case of
a big output capacitor requiring a high extra current to be charged.
5.4
Power Good function
The PG pin output is an open drain MOSFET. The PG is pulled low when the FB pin voltage
is lower than 91% of the nominal internal reference (0.8 V). The PG pin is VIN compatible.
5.5
Hysteretic thermal shutdown
The thermal shutdown block generates a signal that turns off the power stage if the junction
temperature goes above 150 oC. Once the junction temperature goes back to about 130 oC,
the device restarts in normal operation.



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