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LM2574-5 |LM25745MOTON/a53avaiEASY SWITCHERE⑩ 0.5 A STEP-DOWN VOLTAGE REGULATOR
LM2574-5 |LM25745ONN/a66avaiEASY SWITCHERE⑩ 0.5 A STEP-DOWN VOLTAGE REGULATOR
LM2574-5 |LM25745NSN/a675avaiEASY SWITCHERE⑩ 0.5 A STEP-DOWN VOLTAGE REGULATOR
LM2574-ADJ |LM2574ADJONN/a3avaiEASY SWITCHERE⑩ 0.5 A STEP-DOWN VOLTAGE REGULATOR


LM2574-5 ,EASY SWITCHERE⑩ 0.5 A STEP-DOWN VOLTAGE REGULATORFeatures• 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output VersionsPIN CONNECTIONS• Adjustable Versi ..
LM2574-5 ,EASY SWITCHERE⑩ 0.5 A STEP-DOWN VOLTAGE REGULATORELECTRICAL CHARACTERISTICS (continued) (Unless otherwise specified, V = 12 V for the 3.3 V, 5.0 V, ..
LM2574-5 ,EASY SWITCHERE⑩ 0.5 A STEP-DOWN VOLTAGE REGULATOROrder this document by LM2574/D* ** **  *EASY SWITCHER * 0.5 A STEP–DOWNThe LM2574 series of r ..
LM2574-5.0BN , 52kHz Simple 0.5A Buck Regulator
LM2574-5.0BN , 52kHz Simple 0.5A Buck Regulator
LM2574-5.0BN , 52kHz Simple 0.5A Buck Regulator
LM4120AIM5X-2.0 ,Precision Micropower Low Dropout Voltage ReferenceLM4120 Precision Micropower Low Dropout Voltage ReferenceFebruary 2000LM4120Precision Micropower Lo ..
LM4120AIM5X-2.0 ,Precision Micropower Low Dropout Voltage ReferenceApplicationsThe device performance is guaranteed over the industrialn Portable, battery powered equ ..
LM4120AIM5X-2.5 ,Precision Micropower Low Dropout Voltage ReferenceLM4120 Precision Micropower Low Dropout Voltage ReferenceFebruary 2000LM4120Precision Micropower Lo ..
LM4120AIM5X-2.5 ,Precision Micropower Low Dropout Voltage ReferenceBlock DiagramConnection DiagramDS101047-2Refer to the Ordering Information Table in this Data Sheet ..
LM4120AIM5X-2.5 ,Precision Micropower Low Dropout Voltage ReferenceFeaturesn Small SOT23-5 packageThe LM4120 is a precision low power low dropout bandgap@voltage refe ..
LM4120AIM5X-3.0 ,Precision Micropower Low Dropout Voltage ReferenceBlock DiagramConnection DiagramDS101047-2Refer to the Ordering Information Table in this Data Sheet ..


LM2574-5-LM2574-ADJ
EASY SWITCHERE⑩ 0.5 A STEP-DOWN VOLTAGE REGULATOR
ORDERING INFORMATION
Order this document by LM2574/D
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE

XX = Voltage Option, i.e, 3.3, 5, 12, 15 V; and ADJ for--  - -
The LM2574 series of regulators are monolithic integrated circuits ideally
suited for easy and convenient design of a step–down switching regulator
(buck converter). All circuits of this series are capable of driving a 0.5 A load
with excellent line and load regulation. These devices are available in fixed
output voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjustable output version.
These regulators were designed to minimize the number of external
components to simplify the power supply design. Standard series of
inductors optimized for use with the LM2574 are offered by several different
inductor manufacturers.
Since the LM2574 converter is a switch–mode power supply, its efficiency
is significantly higher in comparison with popular three–terminal linear
regulators, especially with higher input voltages. In most cases, the power
dissipated by the LM2574 regulator is so low, that the copper traces on the
printed circuit board are normally the only heatsink needed and no additional
heatsinking is required.
The LM2574 features include a guaranteed ±4% tolerance on output
voltage within specified input voltages and output load conditions, and ±10%
on the oscillator frequency (±2% over 0°C to +125°C). External shutdown is
included, featuring 60 μA (typical) standby current. The output switch
includes cycle–by–cycle current limiting, as well as thermal shutdown for full
protection under fault conditions.
Features
3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions Adjustable Version Output Voltage Range, 1.23 to 37 V ±4% max over
Line and Load Conditions Guaranteed 0.5 A Output Current Wide Input Voltage Range: 4.75 to 40 V Requires Only 4 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 and High–Efficiency Step–Down (Buck) Regulators Efficient Pre–regulator for Linear Regulators On–Card Switching Regulators Positive to Negative Converters (Buck–Boost) Negative Step–Up Converters Power Supply for Battery Chargers
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