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L7292D Scheda tecnica(PDF) 40 Page - STMicroelectronics

Il numero della parte L7292D
Spiegazioni elettronici  Five buck regulators power management unit
PDF  60 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7292D Scheda tecnica(HTML) 40 Page - STMicroelectronics

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Buck regulator description
L7292
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DocID028601 Rev 1
Figure 14. Block diagram
The MODA and MODB status is latched inside the L7292 device when SUP
≥ 2.8 V and
VBUS is > 70% of its min. value (70% of 1.72 V). After that the EEPROM is read and the
wanted power up sequence enabled.
11.2
VOUT selection
By writing the PSRxVLEN (bit 7) = 1 in the register:
PSR1VL for BUCK1
PSR2VL for BUCK2
PSR3VL for BUCK3
PSR4VL for BUCK4
PSR5VL for BUCK5
It is possible to change the default output voltage of each regulator. This operation disables
the MODA and MODB functionality.



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