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ST1S09IPU Datasheet(PDF) 4 Page - STMicroelectronics

Part # ST1S09IPU
Description  2 A, 1.5 MHz PWM step-down switching regulator with synchronous rectificationtm
PDF  18 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1S09IPU Datasheet(HTML) 4 Page - STMicroelectronics

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Pin configuration
ST1S09
4/18
2
Pin configuration
Figure 2.
Pin connections (top view)
ST1S09A
ST1S09I
ST1S09
Table 2.
Pin description
Pin n°
Symbol
Name and function
1
FB
Feedback voltage
2
GND
System ground
3
SW
Switching pin
4VIN_SW
Power supply for the MOSFET switch
5VIN_A
Power supply for analog circuit
6
INH/PG/NC
Inhibit (to turn off the device) / Power Good / Not Connected.
Exposed
Pad
GND
To be connected to PCB ground plane for optimal electrical and thermal
performance.



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