LM2575D2T-12R4 ,1A, Adjustable Output Voltage, Step-Down Switching Regulatorswitching regulator (buck converter). All circuits of this series arecapable of driving a 1.0 A loa ..
LM2575D2T-3.3 ,1A, Adjustable Output Voltage, Step-Down Switching RegulatorOrder this document by AN1593/D * * * ** * * **Prepared by: Ondrej PaukIndustrial System Applicat ..
LM2575D2T-5 ,EASY SWITCHERE 1.0 A STEP-DOWN VOLTAGE REGULATORELECTRICAL CHARACTERISTICS (Unless otherwise specified, V = 12 V for the 3.3 V, 5.0 V, and Adjustab ..
LM2575D2T-ADJ ,EASY SWITCHERE 1.0 A STEP-DOWN VOLTAGE REGULATORELECTRICAL CHARACTERISTICS (Unless otherwise specified, V = 12 V for the 3.3 V, 5.0 V, and Adjustab ..
LM2575D2T-ADJ ,EASY SWITCHERE 1.0 A STEP-DOWN VOLTAGE REGULATOR
LM2575D2T-ADJR4 ,1A, Adjustable Output Voltage, Step-Down Switching RegulatorELECTRICAL CHARACTERISTICS (Unless otherwise specified, V = 12 V for the 3.3 V, 5.0 V, and Adjustab ..
LM4132CMF-4.1 ,SOT23 Precision Low Dropout Voltage Reference 5-SOT-23 -40 to 125Features 3 DescriptionThe LM4132 family of precision voltage references1• Qualified for Automotive ..
LM4140ACM-1.0 ,Precision Micropower Low Dropout Voltage ReferenceLM4140 High Precision Low Noise Low Dropout Voltage ReferenceJuly 2000LM4140High Precision Low Nois ..
LM4140ACM-1.2 ,Precision Micropower Low Dropout Voltage ReferenceLM4140 High Precision Low Noise Low Dropout Voltage ReferenceJuly 2000LM4140High Precision Low Nois ..
LM4140ACM2.0 ,Precision Micropower Low Dropout Voltage ReferenceFeaturesn High initial accuracy: 0.1%The LM4140 series of precision references are designed tocombi ..
LM4140ACM-2.0 ,Precision Micropower Low Dropout Voltage ReferenceApplications Summaryoutput drive capability of the LM4140 makes this product ann Portable, battery ..
LM4140ACM-2.5 ,Precision Micropower Low Dropout Voltage ReferenceFeaturesn High initial accuracy: 0.1%The LM4140 series of precision references are designed tocombi ..
LM2575D2T-12R4-LM2575D2T-ADJ-LM2575D2T-ADJR4-LM2575T-ADJ.-LM2575TV-3.3-LM2575TV-ADJ
1A, Adjustable Output Voltage, Step-Down Switching Regulator
LM2575
1.0 A, Adjustable Output
Voltage, Step-Down
Switching Regulator
The LM2575 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 1.0 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 LM2575 are offered by several
different inductor manufacturers.
Since the LM2575 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 many cases, the power dissipated by the LM2575 regulator is so
low, that no heatsink is required or its size could be reduced
dramatically.
The LM2575 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 80 �A 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 of 1.23 V to 37 V ±4%
Maximum Over Line and Load Conditions Guaranteed 1.0 A Output Current Wide Input Voltage Range: 4.75 V 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 Moisture Sensitivity Level (MSL) Equals 1 Pb−Free Packages are Available
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
