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LM5145 데이터시트(PDF) 19 Page - Texas Instruments

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부품명 LM5145
상세설명  LM25143 3.5-V to 42-V Dual Synchronous Buck DC/DC Controller With Ultra-Low IQ
PDF  69 Pages
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI - Texas Instruments

LM5145 데이터시트(HTML) 19 Page - Texas Instruments

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9.2 Functional Block Diagram
+
-
800mV
RT amp
`
BIAS
PLL &
OSCILLATORS
CLK1
CLK2
VDDA
CONTROL
HICCUP FAULT
TIMER
512 CYCLES
RESTART
LOGIC
HICCUP1/2
DITHER
VREF 0.6V
VREF
-
+
+
20PA
+
-
GAIN = 12
SLOPE COMP
RAMP
PWM1/2
+
_
STANDBY
LEVEL SHIFT
ADAPTIVE
DEADTIME
CLK1/2
DEM/FPWM
+
-
CURRENT
LIMIT
HB1/2
UVLO
PG
DELAY
25Ps
PGUV
PGOV
ILIM1/2
ILIM1/2
COMMON
CHANNEL 1/2
0.660V
0.552V
75mV
FB
DECODER
/MUX
3.3V
5V
SS1/2
SS1/2
ERROR
AMPLIFER
HICCUP1/2
FB1/2
150mV
Q
Q
R
S
DECODER
INTERLEAVE
+
-
HB1
MODE
DITH
SYNCOUT
DEMB/
SYNCIN
RT
HO1/2
HOL1/2
SW1/2
LO1/2
LOL1/2
PGND1/2
VCC
PG1/2
COMP1/2
SS1/2
FB1/2
VOUT1/2
CS1/2
EN1/2
AGND
RES
VDDA
VCC
VCCX
VIN
21PA
ULIQ
DEM/FPWM
INTERLEAVE
COMP1/2 ENABLE
+
-
GM
125mV
ILIM1/2
22PA
22PA
VOUT1
ULIQ
+
-
+
±
www.ti.com
LM25143
SNVSC10 – MARCH 2022
Copyright © 2022 Texas Instruments Incorporated
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Product Folder Links: LM25143



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