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LM2597M-5.0/NOPB |LM2597M50NOPBNSN/a2000avaiSIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator 8-SOIC
LM2597M-ADJ/NOPB |LM2597MADJNOPBNSN/a2000avaiSIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator 8-SOIC -40 to 125


LM2597M-5.0/NOPB ,SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator 8-SOIC features include a two stage current limit for the output switch and anovertemperature shutdown for ..
LM2597M-ADJ ,SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage RegulatorElectrical CharacteristicsSpecifications with standard type face are for T = 25˚C, and those with b ..
LM2597M-ADJ/NOPB ,SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator 8-SOIC -40 to 125features added.• Shutdown/Soft-StartRequiring a minimum number of external• Out of Regulation Error ..
LM2597MX-12 ,SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage RegulatorFeaturesstep-down (buck) switching regulator, capable of driving an 3.3V, 5V, 12V, and adjustable o ..
LM2597MX-3.3 ,SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage RegulatorElectrical CharacteristicsSpecifications with standard type face are for T = 25˚C, and those with b ..
LM2597MX-5.0 ,SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage RegulatorApplicationsface mount types) are available from several different manu-n Simple high-efficiency st ..
LM4883SQX ,Dual 2.1W Audio Amplifier Plus Stereo Headphone Function
LM4884MH ,2.1W Differential Input, BTL Output Stereo Audio Amplifier with RF Suppression and ShutdownApplicationsdown mode input, and has thermal shutdown protection.n Notebook computersn PDAsKey Spec ..
LM4888 ,Dual 2.1W Audio Amplifier Plus Stereo Headphone & 3D EnhancementApplicationswill deliver 2.1W into 4Ω. See theApplication Information sections for furtherinformati ..
LM4888SQ ,Dual 2.1W Audio Amplifier Plus Stereo Headphone & 3D EnhancementGeneral Description Key SpecificationsThe LM4888 is a dual bridge-connected audio power ampli-j P a ..
LM4889 ,1 Watt Audio Power AmplifierApplicationsThe LM4889 is unity-gain stable and can be configured byexternal gain-setting resistors ..
LM4889ITL ,1 Watt Audio Power Amplifierfeatures a low-power consumption shutdownturn-on and turn-off transitionsmode, which is achieved by ..


LM2597M-5.0/NOPB-LM2597M-ADJ/NOPB
SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator 8-SOIC
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LM2597, LM2597HV

SNVS119D –MARCH 1998–REVISED MAY 2016
LM2597, LM2597HV SIMPLE SWITCHER® Power Converter 150-kHz 0.5-A Step-Down
Voltage Regulator With Features Features
3.3-V, 5-V, 12-V, and Adjustable Output Versions Adjustable Version Output Voltage Range: 1.2V37V (57Vfor HV Version) ±4% Maximum Over
Line and Load Conditions Specified 0.5-A Output Current Availablein 8-Pin Surface-Mount and 8-Pin PDIP
Packages Input Voltage Range Upto60V 150-kHz Fixed-Frequency Internal Oscillator Shutdown/Soft-Start Outof Regulation Error Flag Error Output Delay Bias Supply Pin (VBS)for Internal Circuitry
Improves Efficiencyat High Input Voltages Low Power Standby Mode,IQ, Typically 85 μA High Efficiency Uses Readily Available Standard Inductors Thermal Shutdown and Current-Limit Protection Applications Simple High-Efficiency Step-Down (Buck)
Regulator Efficient Preregulator for Linear Regulators On-Card Switching Regulators Positive-to-Negative Converter Description
The LM2597xx seriesof regulators are monolithic
integrated circuits that provideall the active functions
fora step-down (buck) switching regulator, capableof
drivinga 0.5-A load with excellent line and load
regulation. These devices are availablein fixed output
voltagesof 3.3V,5V,12V, and an adjustable output
version, and are packagedin an 8-pin PDIP and an
8-pin surface-mount package.
This seriesof switching regulatorsis similarto the
LM2594 series, with additional supervisory and
performance features added.
Requiring a minimum number of external
components, these regulators are simpleto use and
include internal frequency compensation, improved
line and load specifications, fixed-frequency oscillator,
Shutdown/Soft-start, error flag delay, and error flag
output.
The LM2597xx series operates at a switching
frequency of 150-kHz, thus allowing smaller-sized
filter components than what would be required with
lower-frequency switching regulators. Becauseofits
high efficiency, the copper traces on the printed-
circuit board are normally the only heat sinking
required.
Device Information(1)

(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Typical Application
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