LM2672M-ADJ ,SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with FeaturesFeaturesswitching regulator, capable of driving a 1Aload current withn Efficiency up to 96%excellen ..
LM2672M-ADJ ,SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with FeaturesGeneral Descriptionthere exists computer design software, LM267X MadeThe LM2672 series of regulator ..
LM2672M-ADJ/NOPB ,SIMPLE SWITCHER? 6.5V to 40V, 1A Low Component Count Step-Down Regulator 8-SOIC -40 to 125features include ±1.5%-tolerance on output voltage within specified input voltages and output loadc ..
LM2672MX-12 ,SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with FeaturesFeaturesFebruary 2005LM2672®SIMPLE SWITCHER Power Converter High Efficiency1A Step-Down Voltage Reg ..
LM2672MX-3.3 ,SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with FeaturesFeaturesTo simplify the LM2672 buck regulator design procedure,
LM2672MX-5.0 ,SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Featuresfeatures include a guaranteed ±1.5% tolerance on Typical
LM5025BSD , Active Clamp Voltage Mode PWM Controller
LM5025CMTC , Active Clamp Voltage Mode PWM Controller
LM5025EVAL ,Active Clamp Voltage Mode PWM Controllerapplications) or a guaranteed deadtime (for N_Channel ap-n Single Resistor Programmable Oscillatorp ..
LM5025MTC ,Active Clamp Voltage Mode PWM Controllerfeaturesinclude:LineUnderVoltageLockout(UVLO), softstart, oscillator UP/DOWN sync capability, pre- ..
LM5025MTCX ,Active Clamp Voltage Mode PWM ControllerPin DescriptionPIN NAME DESCRIPTION APPLICATION INFORMATION1V Source Input Voltage Input to start-u ..
LM5025SD ,Active Clamp Voltage Mode PWM ControllerfeaturesnecessarytoimplementpowerconvertersutilizingtheActive n 3A Compound Main Gate DriverClamp / ..
LM2672LD-12-LM2672LD-3.3-LM2672LD-5.0-LM2672LD-ADJ-LM2672LDX-12-LM2672LDX-3.3-LM2672LDX-ADJ-LM2672M-1.2-LM2672M-12-LM2672M3.3-LM2672M-3.3-LM2672M-5.0-LM2672MADJ-LM2672M-ADJ-LM2672MX-12-LM2672MX-3.3-LM2672MX-5.0-LM2672MX-ADJ-LM2672N-12-LM2672N-5.0-LM2672N-ADJ
SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features
LM2672
SIMPLE SWITCHER® Power Converter High Efficiency Step-Down V oltage Regulator with Features
General DescriptionThe LM2672 seriesof regulators are monolithic integrated
circuits built witha LMDMOS process. These regulators
provideall the active functions fora step-down (buck)
switching regulator, capableof drivinga1A load current with
excellent line and load regulation. These devices are avail-
ablein 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 LM2672 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 LM2672 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 LM2672 buck regulator design procedure,
there exists computer design software,
LM267X Made
Simple version 1.0.
Features Efficiencyupto 96% Availablein SO-8 and 8-pin DIP packages Computer Design Software
LM267X Made Simpleversion 1.0 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 Guaranteed1A 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
Typical Applications Simple High Efficiency (>90%) Step-Down (Buck)
Regulator Efficient Pre-Regulatorfor Linear Regulators
Typical Application (Fixed Output Voltage
Versions)
February 2005
LM2672
SIMPLE
SWITCHER
Power
Converter
High
Efficiency
Step-Down
oltage
with
Features
