LM2676SX-12 ,SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage RegulatorLM2676 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage RegulatorOctober 2003LM2676®SIMPLE SWIT ..
LM2676SX-12/NOPB ,SIMPLE SWITCHER? 8V to 40V, 3A Low Component Count Step-Down Regulator 7-DDPAK/TO-263 -40 to 125Maximum Ratings.. 410.1 Layout Guidelines.... 256.2 ESD Ratings........ 410.2 Layout Example....... ..
LM2676SX-3.3 ,SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage RegulatorLM2676 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage RegulatorOctober 2003LM2676®SIMPLE SWIT ..
LM2676SX-3.3/NOPB ,SIMPLE SWITCHER? 8V to 40V, 3A Low Component Count Step-Down Regulator 7-DDPAK/TO-263 -40 to 125Maximum Ratings(1)(2)seeMIN MAX UNITInput supply voltage 45 VSoft-start pin voltage –0.1 6 V(3)Swit ..
LM2676SX-5.0 ,SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage RegulatorLM2676 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage RegulatorOctober 2003LM2676®SIMPLE SWIT ..
LM2676SX-5.0/NOPB ,SIMPLE SWITCHER? 8V to 40V, 3A Low Component Count Step-Down Regulator 7-DDPAK/TO-263 -40 to 125 SNVS031K–APRIL 2000–REVISED JUNE 20165 Pin Configuration and FunctionsKTW PackageNDZ Package7-Pin ..
LM5109BMAX , High Voltage 1A Peak Half Bridge Gate Driver
LM5109BSD , High Voltage 1A Peak Half Bridge Gate Driver
LM5109MAX ,100V / 1A Peak Half Bridge Gate DriverPin DescriptionPin #Name Description Application InformationSO-8 LLP-811 V Positive gate drive supp ..
LM5109SD ,100V / 1A Peak Half Bridge Gate DriverGeneral Descriptionn Fast propagation times (27 ns typical)The LM5109 is a low cost high voltage ga ..
LM5110-1M ,Dual 5A Compound Gate Driver with Negative Output Voltage CapabilityGeneral Descriptionn Two channels can be connected in parallel to double theThe LM5110 Dual Gate Dr ..
LM5110-1MX ,Dual 5A Compound Gate Driver with Negative Output Voltage CapabilityFeaturesn SOIC-8n Independently drives two N-Channel MOSFETsn LLP-10 (4 mmx4mm)n Compound CMOS and ..
LM2676S-12-LM2676S3.3-LM2676S-3.3-LM2676S-5.0.-LM2676S-ADJ-LM2676SD-3.3-LM2676SD-5.0-LM2676SD-ADJ-LM2676SDX-3.3-LM2676SDX-5.0-LM2676SDX-ADJ-LM2676SX-12-LM2676SX-3.3-LM2676SX-5.0-LM2676SX-ADJ-LM2676T-12-LM2676T-3.3-LM2676T-5.0-LM2676T-ADJ
SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator
LM2676
SIMPLE SWITCHER® High Efficiency 3A Step-Down
Voltage Regulator
General DescriptionThe LM2676 seriesof regulators are monolithic integrated
circuits which provideallof the active functionsfora step-
down (buck) switching regulator capableof drivingupto3A
loads with excellent line and load regulation characteristics.
High efficiency (>90%)is obtained through the useofa low
ON-resistance DMOS power switch. The series consistsof
fixed output voltagesof 3.3V,5V and 12V andan adjustable
output version.
The SIMPLE SWITCHER concept providesfora complete
design usinga minimum numberof external components.A
high fixed frequency oscillator (260KHz) allows the useof
physically smaller sized components.A familyof standard
inductorsfor use withthe LM2676are available from several
manufacturersto greatly simplifythe design process.
The LM2676 series also has builtin thermal shutdown,
current limiting andan ON/OFF control input that can power
downthe regulatortoa low 50µA quiescent current standby
condition. The output voltageis guaranteedtoa ±2% toler-
ance. The clock frequencyis controlledto withina ±11%
tolerance.
Features Efficiencyupto 94% Simple and easyto design with (using off-the-shelf
external components) 150 mΩ DMOS output switch 3.3V,5V and 12V fixed output and adjustable (1.2Vto
37V) versions 50µA standby current when switched OFF ±2%maximum output tolerance overfull line and load
conditions Wide input voltage range:8Vto 40V 260 KHz fixed frequency internal oscillator −40to +125˚C operating junction temperature range
Applications Simpleto design, high efficiency (>90%) step-down
switching regulators Efficient system pre-regulatorfor linear voltage
regulators Battery chargers
Typical ApplicationOctober 2003
LM2676
SIMPLE
SWITCHER
High
Efficiency
Step-Down
oltage
Regulator
