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L6751B Datasheet(PDF) 44 Page - STMicroelectronics

Part # L6751B
Description  Digitally controlled dual PWM for Intel VR12 and AMD SVI
PDF  58 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6751B Datasheet(HTML) 44 Page - STMicroelectronics

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Efficiency optimization
L6751B
44/58
Doc ID 024028 Rev 1
Figure 13 allows the efficiency improvements with DPM/GDC enabled to be compared with
respect to the standard solution.
Note:
Systems supporting S3 power state may have the VDRV supplied by an OR-ing connection
between 5 Vsby and 12 V or different supply voltage for S0. It is recommended to connect
closely, between the VDRV and VCC5 pins, the OR-ing diode connecting VDRV to the 5
Vsby.
Figure 13.
Efficiency performance with and without enhancements (DPM, GDC).



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