LM2576HVSX-5.0/NOPB ,SIMPLE SWITCHER? 4V to 60V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125Block Diagram... 124 Revision HistoryNOTE: Page numbers for previous revisions may differ from page ..
LM2576HVSX-ADJ ,SIMPLE SWITCHER® 3A Step-Down Voltage RegulatorElectrical CharacteristicsSpecifications with standard type face are for T = 25˚C, and those with b ..
LM2576HVSX-ADJ/NOPB ,SIMPLE SWITCHER? 4V to 60V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125Features 3 DescriptionThe LM2576 series of regulators are monolithic1• 3.3-V, 5-V, 12-V, 15-V, and ..
LM2576HVT-12 ,SIMPLE SWITCHER® 3A Step-Down Voltage Regulatorfeatures include a guaranteed ±4% tolerance on out-n Efficient pre-regulator for linear regulatorsp ..
LM2576HVT-15 ,SIMPLE SWITCHER® 3A Step-Down Voltage RegulatorFeaturesn 3.3V, 5V, 12V, 15V, and adjustable output versionsThe LM2576 series of regulators are mon ..
LM2576HVT-15/NOPB ,SIMPLE SWITCHER? 4V to 60V, 3A Low Component Count Step-Down Regulator 5-TO-220 -40 to 125Features... 17.4 Device Functional Modes.... 142 Applications..... 18 Application and Implementatio ..
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LM2576HVSX-5.0/NOPB-LM2576HVSX-ADJ/NOPB-LM2576HVT-15/NOPB-LM2576HVT-ADJ/NOPB-LM2576HVT-ADJLB03
SIMPLE SWITCHER? 4V to 60V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125
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LM2576, LM2576HV
SNVS107D–JUNE 1999–REVISED MAY 2016
LM2576xx Series SIMPLE SWITCHER® 3-A Step-Down Voltage Regulator Features 3.3-V, 5-V, 12-V, 15-V, and Adjustable Output
Versions Adjustable Version Output Voltage Range,1.23V37V (57Vfor HV Version) ±4% Maximum Over
Line and Load Conditions Specified 3-A Output Current Wide Input Voltage Range:40V Upto60V for Version Requires Only4 External Components 52-kHz Fixed-Frequency Internal Oscillator TTL-Shutdown Capability, Low-Power Standby
Mode 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 (Buck-Boost) Description
The LM2576 series of regulators are monolithic
integrated circuits that provideall the active functions
fora step-down (buck) switching regulator, capableof
driving 3-A load with excellent line and load
regulation. These devices are availablein fixed output
voltagesof 3.3V,5V, 12V,15V, and an adjustable
output version.
Requiring a minimum number of external
components, these regulators are simpleto use and
include fault protection and a fixed-frequency
oscillator.
The LM2576 series offers a high-efficiency
replacement for popular three-terminal linear
regulators.It substantially reduces the sizeof the
heat sink, and in some cases no heat sink is
required. standard seriesof inductors optimized for use with
the LM2576 are available from several different
manufacturers. This feature greatly simplifies the
designof switch-mode power supplies.
Other features includea ±4% tolerance on output
voltage within specified input voltages and output
load conditions, and ±10% on the oscillator
frequency. External shutdownis included, featuring
50-μA (typical) standby current. The output switch
includes cycle-by-cycle current limiting, as well as
thermal shutdown for full protection under fault
conditions.
Device Information(1)
(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Fixed Output Voltage Version Typical Application Diagram
