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L7292D Folha de dados(PDF) 40 Page - STMicroelectronics

Nome de Peças L7292D
Descrição Electrónicos  Five buck regulators power management unit
PDF  60 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7292D Folha de dados(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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