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LM5145 Scheda tecnica(PDF) 30 Page - Texas Instruments

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Il numero della parte LM5145
Spiegazioni elettronici  LM25143 3.5-V to 42-V Dual Synchronous Buck DC/DC Controller With Ultra-Low IQ
PDF  69 Pages
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

LM5145 Scheda tecnica(HTML) 30 Page - Texas Instruments

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3.3-V output and to AGND for a 5-V output. Connect FB1 to an external feedback divider for an output voltage
between 0.6 V to 36 V. See Table 9-2 and Figure 9-9.
The LM25143 in single-output interleaved operation does not support phase shedding when the output voltage is
set between 0.6 V to 1.5 V.
Table 9-2. Single-Output Interleaved Operation
Mode
FB1
FB2
Output Setpoint
VDDA
AGND
AGND
5 V
VDDA
VDDA
AGND
3.3 V
VDDA
Rdivider
AGND
0.6 V to 36 V
V
IN
SS2 RES
DEMB
AGND SS1
COMP2
PGND2
VOUT2
CS2
LO2
SW2
HO2
HB2
VIN
COMP1
PGND1
VOUT1
CS1
LO1
SW1
HO1
HB1
VCC
PG1
HOL1
LOL1
HOL2
LOL2
EN1
EN2
VCCX
RT
VDDA
PG2
SYNCOUT
LM25143
L
O1
C
O2
C
IN
C
SS
C
RES
C
VDD
L
O2
C
O1
R
S2
R
S1
R
HO2
R
HO1
C
DITH
DITH
R
RT
V
OUT
SYNC Out
C
VCC2
C
VCC1
FB2
FB1
MODE
VDDA
VDDA
C
VCCX
C
HF
R
COMP
C
COMP
Figure 9-9. Two-Phase Regulator Schematic Configured for Single-Output Interleaved Operation
LM25143
SNVSC10 – MARCH 2022
www.ti.com
30
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