LM2575IN ,336.2 ESD RatingsVALUE UNIT(1)Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins ±2000Elect ..
LM2575IN ,33Features 3 DescriptionThe LM2575 device greatly simplifies the design of1• Adjustable With a Range ..
LM2575M-12 ,SIMPLE SWITCHER 1A Step-Down Voltage RegulatorLM1575/LM2575/LM2575HV Series SIMPLE SWITCHER 1A Step-Down Voltage RegulatorAugust 2004LM1575/LM257 ..
LM2575M-15 ,SIMPLE SWITCHER 1A Step-Down Voltage RegulatorLM1575/LM2575/LM2575HV Series SIMPLE SWITCHER 1A Step-Down Voltage RegulatorAugust 2004LM1575/LM257 ..
LM2575M-3.3 ,SIMPLE SWITCHER 1A Step-Down Voltage Regulatorfeatures include a guaranteed ±4% tolerance on out-n On-card switching regulatorsput voltage within ..
LM2575M-5.0 ,SIMPLE SWITCHER 1A Step-Down Voltage RegulatorFeaturesn 3.3V, 5V, 12V, 15V, and adjustable output versionsThe LM2575 series of regulators are mon ..
LM4140CCM-4.1 ,Precision Micropower Low Dropout Voltage ReferenceFeaturesn High initial accuracy: 0.1%The LM4140 series of precision references are designed tocombi ..
LM4140CCMX-1.2 ,Precision Micropower Low Dropout Voltage ReferenceApplications Summaryoutput drive capability of the LM4140 makes this product ann Portable, battery ..
LM4250CH ,Programmable Operational AmplifierFeaturesn ±1V to ±18V power supply operationThe LM4250 and LM4250C are extremely versatile program- ..
LM4250CJ ,Programmable Operational Amplifierelectrical characteristicsdevice is a truly general purpose operational amplifier.n Offset voltage ..
LM4250CM ,Programmable Operational AmplifierLM4250 Programmable Operational AmplifierAugust 2000LM4250Programmable Operational Amplifier
LM4250CMX ,Programmable Operational AmplifierMICROCIRCUIT DATA SHEETOriginal Creation Date: 08/15/95MNLM4250-X REV 0CLLast Update Date: 09/03/97 ..
LM2575IN
33
Internal
Regulator ON/OFF
1.23-V
52-kHz
Thermal
Current
FEEDBACK
CIN+
VINUnregulated
DC Input
OUTPUT
ON/OFF
VOUT
1-A
SwitchDriver
Fixed-Gain
Error Amp ComparatorProduct
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LM2575SLVS569F –JANUARY 2005–REVISED AUGUST 2015
LM2575 1-A Simple Step-Down Switching Voltage Regulator Features 3 DescriptionThe LM2575 device greatly simplifies the designof Adjustable Witha Rangeof 1.23Vto37V and switching power suppliesby conveniently providingall±4% Regulation (Max) Over Line, Load, and the active functions needed fora step-down (buck)Temperature Conditions switching regulatorin an integrated circuit. Accepting• Specified 1-A Output Current a wide input voltage range and available in an
adjustable output version, the LM2575 has an• Wide Input Voltage Range 4.75Vto40V
integrated switch capableof delivering1Aof load• Uses Readily Available Standard Inductors current, with excellent line and load regulation. The• 52-kHz (Typical) Fixed-Frequency Internal device also offers internal frequency compensation,aOscillator fixed-frequency oscillator, cycle-by-cycle current TTL Shutdown Capability With 50-μA (Typical) limiting, and thermal shutdown.In addition,a manual
shutdownis available through an external ON/OFFStandby Current
pin.• High Efficiency…as Highas 88% (Typical)
The LM2575 representsa superior alternative to• Thermal Shutdown and Current-Limit Protection
popular three-terminal linear regulators. Dueto itsWith Cycle-by-Cycle Current Limiting high efficiency,it significantly reduces the sizeof the• For the Full Offeringof Voltages (Including Fixed- heat sink and, in many cases, no heat sink isOutput Options) and Packages (Including TO- required. Optimized for use with standard seriesof263), See TL2575 Data Sheet, SLVS638 inductors available from several different
manufacturers, the LM2575 greatly simplifies the
2 Applications designof switch-mode power suppliesby requiringa
minimal addition of only four to six external• Simple High-Efficiency Step-Down (Buck) components for operation.Regulator
The LM2575is characterized for operation over the• Pre-Regulatorfor Linear Regulators virtual junction temperature rangeof –40°Cto 125°C.• On-Card Switching Regulators Positive-to-Negative Converter (Buck-Boost)
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Simplified Schematic
