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LM5122ZPWPR Scheda tecnica(PDF) 29 Page - Texas Instruments

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Il numero della parte LM5122ZPWPR
Spiegazioni elettronici  Wide-Input Synchronous Boost Controller With Multiple Phase Capability
PDF  51 Pages
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

LM5122ZPWPR Scheda tecnica(HTML) 29 Page - Texas Instruments

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MASTER
VCC
CSN
SYNCIN/RT
RES
SS
UVLO
VIN
SYNCOUT
BST
SLOPE
COMP
FB
HO
LO
SW
+
VOUT
VCC
CSN
SYNCIN/RT
RES
SS
UVLO
VIN
BST
SLOPE
COMP
FB
HO
LO
SW
VCC
SLAVE
VSUPPLY
CSP
CSP
OPT
OPT
VSUPPLY
29
LM5122, LM5122-Q1
www.ti.com
SNVS954G – FEBRUARY 2013 – REVISED MAY 2016
Product Folder Links: LM5122 LM5122-Q1
Submit Documentation Feedback
Copyright © 2013–2016, Texas Instruments Incorporated
Figure 30. Normalized Output Capacitor RMS Ripple Current
To configure for dual phase interleaved operation, one device should be configured as a master and the other
device should be configured in slave mode by connecting FB to VCC. Also COMP, UVLO, RES, SS and
SYNCOUT on the master side should be connected to COMP, UVLO, RES, SS and SYNCIN on slave side
respectively. The compensation network is connected between master FB and the common COMP connection.
The output capacitors of the two power stages are connected together at the common output.
Figure 31. Dual Phase Interleaved Boost Configuration
Shown in Figure 32 is a dual phase timing diagram. The 180° phase shift is realized by connecting SYNCOUT on
the master side to the SYNCIN on the slave side.



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