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LM2671LD-3.3 |LM2671LD33NSN/a1007avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671LD-ADJ |LM2671LDADJNSN/a775avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671M-1.2 |LM2671M12NSN/a10avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671M-12 |LM2671M12NSN/a5700avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671M3.3 |LM2671M33NSN/a15avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671M-3.3 |LM2671M33NSN/a25500avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671M5.0 |LM2671M50NSN/a16avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671M-5.0 |LM2671M50NSN/a7850avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671MADJNSN/a13avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671M-ADJ |LM2671MADJNSN/a201avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671MX-12 |LM2671MX12NSN/a5000avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671MX-3.3 |LM2671MX33NSCN/a45avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671MX-3.3 |LM2671MX33NSN/a25500avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671MX-5.0 |LM2671MX50NSN/a22500avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671MX-ADJ |LM2671MXADJNSN/a2avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671N-12 |LM2671N12NSN/a280avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671N-3.3 |LM2671N33NSN/a29avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671N-5.0 |LM2671N50NSN/a380avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671N-ADJ |LM2671NADJNSN/a1280avaiSIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features


LM2671M-3.3 ,SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with FeaturesGeneral Descriptionthere exists computer design software, LM267X MadeThe LM2671 series of regulator ..
LM2671M-3.3/NOPB ,SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features 8-SOIC -40 to 125Features 3 DescriptionThe LM2671 series of regulators are monolithic1• Efficiency up to 96%integrat ..
LM2671M5.0 ,SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with FeaturesLM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down VoltageRegulator with
LM2671M-5.0 ,SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with FeaturesFeaturesTo simplify the LM2671 buck regulator design procedure,
LM2671MADJ ,SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with FeaturesFeaturesFebruary 2005LM2671®SIMPLE SWITCHER Power Converter High Efficiency500mA Step-Down Voltage ..
LM2671M-ADJ ,SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with FeaturesLM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down VoltageRegulator with
LM5010AMH/NOPB ,6-75V Wide Vin, 1A Constant On-Time Non-Synchronous Buck Regulator 14-HTSSOP -40 to 150 SNVS376F–OCTOBER 2005–REVISED MAY 20165 Pin Configuration and FunctionsDPR PackagePWP Package10-Pi ..
LM5010AMHX ,6-75V Wide Vin, 1A Constant On-Time Non-Synchronous Buck Regulator 14-HTSSOP -40 to 150Block Diagram..... 9Information..... 234 Revision HistoryNOTE: Page numbers for previous revisions ..
LM5010AMHX/NOPB ,6-75V Wide Vin, 1A Constant On-Time Non-Synchronous Buck Regulator 14-HTSSOP -40 to 150features all the functions needed to– Device CDM ESD Classification Level C5implement a low-cost, e ..
LM5010AQ1MHX/NOPB ,Automotive Grade 0 and 1, 6-75V Wide Vin, 1A Constant On-Time Non-Synchronous Buck Regulator 14-HTSSOP -40 to 125 SNVS376F–OCTOBER 2005–REVISED MAY 20165 Pin Configuration and FunctionsDPR PackagePWP Package10-Pi ..
LM5010ASD/NOPB ,6-75V Wide Vin, 1A Constant On-Time Non-Synchronous Buck Regulator 10-WSON -40 to 150features include: VCC undervoltage• Adjustable Output Voltagelockout, thermal shutdown, gate drive ..
LM5010MH ,High Voltage 1A Step Down Switching Regulatorfeatures include: V under-voltageCClockout,thermalshutdown,gatedriveunder-voltagelockout, n Precisi ..


LM2671LD-3.3-LM2671LD-ADJ-LM2671M-1.2-LM2671M-12-LM2671M3.3-LM2671M-3.3-LM2671M5.0-LM2671M-5.0-LM2671MADJ-LM2671M-ADJ-LM2671MX-12-LM2671MX-3.3-LM2671MX-5.0-LM2671MX-ADJ-LM2671N-12-LM2671N-3.3-LM2671N-5.0-LM2671N-ADJ
SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671
SIMPLE SWITCHER® Power Converter High Efficiency
500mA Step-Down Voltage Regulator with Features
General Description

The LM2671 seriesof regulators are monolithic integrated
circuits built witha LMDMOS process. These regulators
provideall the active functions fora step-down (buck)
switching regulator, capableof drivinga 500mA load current
with excellent line and load regulation. These devices are
availablein fixed output voltagesof 3.3V, 5.0V, 12V, andan
adjustable output version.
Requiringa minimum numberof external components, these
regulators are simpleto use and include patented internal
frequency compensation (Patent Nos. 5,382,918 and
5,514,947), fixed frequency oscillator, external shutdown,
soft-start, and frequency synchronization.
The LM2671 series operatesata switching frequencyof
260 kHz, thus allowing smaller sized filter components than
what wouldbe needed with lower frequency switching regu-
lators. Becauseofits very high efficiency (>90%),the cop-
per traceson the printed circuit board are the only heat
sinking needed. familyof standard inductorsfor use withthe LM2671 are
available from several different manufacturers. This feature
greatly simplifies the designof switch-mode power supplies
using these advanced ICs. Also includedin the datasheet
are selector guidesfor diodes and capacitors designedto
workin switch-mode power supplies.
Other features includea guaranteed ±1.5% toleranceon
output voltage within specified input voltages and output
load conditions, and ±10%on the oscillator frequency. Ex-
ternal shutdownis included, featuring typically 50 µA
stand-by current. The output switch includes current limiting, wellas thermal shutdownforfull protection under fault
conditions. simplify the LM2671 buck regulator design procedure,
there exists computer design software, LM267X Made
Simple
(version 6.0).
Features
Efficiencyupto 96% Availablein SO-8, 8-pin DIP and LLP packages Computer Design Software LM267X Made Simple
(version 6.0) Simple and easyto design with Requires only5 external components Uses readily available standard inductors 3.3V, 5.0V, 12V, and adjustable output versions Adjustable version output voltage range: 1.21Vto 37V ±1.5% max output voltage tolerance over line and load
conditions Guaranteed 500mA output load current 0.25Ω DMOS Output Switch Wide input voltage range:8Vto 40V 260 kHz fixed frequency internal oscillator TTL shutdown capability, low power standby mode Soft-start and frequency synchronization Thermal shutdown and current limit protection
Applications
Simple High Efficiency (>90%) Step-Down (Buck)
Regulator Efficient Pre-Regulatorfor Linear Regulators
Typical Application
(Fixed Output Voltage Versions)
February 2005
LM2671
SIMPLE
SWITCHER
Power
Converter
High
Efficiency
500mA
Step-Down
oltage
Regulator
with
Features
ic,good price


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