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LM3673 Datasheet(PDF) 5 Page - Texas Instruments

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Part # LM3673
Description  2MHz, 350mA Step-Down DC-DC Converter
Download  23 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3673 Datasheet(HTML) 5 Page - Texas Instruments

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2 MHz
Oscillator
Soft
Start
Ramp
Generator
Thermal
Shutdown
Undervoltage
Lockout
Frequency
Compensation
+
-
Error
Amp
Control Logic
Driver
Current Limit
Comparator
Ref1
PFM Current
Comparator
Ref2
SW
Zero Crossing
Comparator
FB
EN
VIN
PWM Comparator
pfm_low
pfm_hi
GND
Bandgap
+
-
Vcomp
1.0V
Fixed Ver
Adj Ver
+
-
0.5V
+
-
+
-
VREF
LM3673
www.ti.com
SNVS434J – JULY 2006 – REVISED NOVEMBER 2006
BLOCK DIAGRAM
Figure 4. Simplified Functional Diagram
Copyright © 2006, Texas Instruments Incorporated
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