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LM2574N-005 데이터시트 - ON Semiconductor

부품번호상세내용제조사
LM2574N-005 0.5 A, Adjustable Output Voltage, Step-Down Switching Regulator ON-Semiconductor
ON Semiconductor ON-Semiconductor
LM2574N-005 PDF 데이터시트 : LM2574N-005 pdf   
LM2574DW-ADJR2 image

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.

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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"LM2574N-005" 관련 부품명

부품번호상세내용PDF제조사
I9104133 1.8A DC/DC Step-Down Voltage Regulator 5.0V & 3.3V or Adjustable Output Voltage I9104133 View Unspecified
IFX91041 1.8A DC/DC Step-Down Voltage Regulator 5.0V, 3.3V or Adjustable Output Voltage IFX91041 View Infineon Technologies
SC4520 3A Step-Down Switching Regulator with Adjustable Switching Frequency SC4520 View Semtech Corporation
TPS5405 6.5-V TO 28-V INPUT VOLTAGE, 5-V FIXED OUTPUT, 2-A OUTPUT CURRENT, NON-SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET TPS5405 View Texas Instruments
GS-R51212 20W TRIPLE OUTPUT STEP-DOWN SWITCHING REGULATOR GS-R51212 View STMicroelectronics
ST1S06 Synchronous rectification with inhibit, 1.5 A, 1.5 MHz fixed or adjustable, step-down switching regulator ST1S06 View STMicroelectronics
BA9741F Dual-output Step-up, Negative Voltage, Step-down Switching Regulators (Controller type) BA9741F View ROHM Semiconductor
PTR08100W 10-A, 4.5-V to 14-V INPUT, NON-ISOLATED, ADJUSTABLE WIDE-OUTPUT, SWITCHING REGULATOR PTR08100W View Texas Instruments
IL317L 100mA ADJUSTABLE OUTPUT, POSITIVE VOLTAGE REGULATOR IC IL317L View IK Semicon Co., Ltd
MAX638 +5V/Adjustable CMOS Step-down Switching Regulator MAX638 View Maxim Integrated

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