LM2575HV

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SIMPLE SWITCHER 1A 降壓電壓穩壓器

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功能與比較器件相同，但引腳排列有所不同
LMR36510 正在供貨 具有 26uA IQ 的 SIMPLE SWITCHER? 4.2V 至 65V、1A 同步降壓轉換器 Higher Fsw, better efficiency, lower EMI and lower IQ.
TPSM5601R5 正在供貨 采用 5mm x 5.5mm x 4mm QFN 封裝的 4.2V 至 60V 輸入、1V 至 6V 輸出、1.5A 降壓模塊 Simplified design, smaller and speed time to market with an integrated-inductor power module.
TPSM5601R5H 正在供貨 采用增強型 Hotrod? QFN 封裝的 60V 輸入、1V 至 16V 輸出、1.5A 電源模塊 Save board space, simplify design and speed time to market with an integrated-inductor power module.

產品詳情

Rating Catalog Topology Buck Iout (max) (A) 1 Vin (max) (V) 60 Vin (min) (V) 4 Vout (max) (V) 57 Vout (min) (V) 3.3 Features Enable, Over Current Protection Control mode Voltage mode Switching frequency (min) (kHz) 42 Switching frequency (max) (kHz) 63 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 10000 Duty cycle (max) (%) 98 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 1 Vin (max) (V) 60 Vin (min) (V) 4 Vout (max) (V) 57 Vout (min) (V) 3.3 Features Enable, Over Current Protection Control mode Voltage mode Switching frequency (min) (kHz) 42 Switching frequency (max) (kHz) 63 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 10000 Duty cycle (max) (%) 98 Type Converter
PDIP (NBG) 16 189.051819 mm2 21.7551 x 8.69 SOIC (DW) 24 159.65 mm2 15.5 x 10.3 TO-220 (KC) 5 45.212 mm2 10.16 x 4.45 TO-220 (NDH) 5 86.0552 mm2 10.16 x 8.47 TO-263 (KTT) 5 154.8384 mm2 10.16 x 15.24
  • 3.3V, 5V, 12V, 15V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range,
    • ?1.23V to 37V (57V for HV Version) ±4% Max Over
    • ?Line and Load Conditions
  • Specified 1A Output Current
  • Wide Input Voltage Range, 40V up to 60V for HV Version
  • 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
  • P+ Product Enhancement Tested

All trademarks are the property of their respective owners.
  • 3.3V, 5V, 12V, 15V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range,
    • ?1.23V to 37V (57V for HV Version) ±4% Max Over
    • ?Line and Load Conditions
  • Specified 1A Output Current
  • Wide Input Voltage Range, 40V up to 60V for HV Version
  • 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
  • P+ Product Enhancement Tested

All trademarks are the property of their respective owners.

The LM2575 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.

The LM2575 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.

A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a specified ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is 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.

The LM2575 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.

The LM2575 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.

A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a specified ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is 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.
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類型 標題 下載最新的英語版本 日期
* 數據表 LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator 數據表 (Rev. E) 2013年 4月 3日
應用手冊 半導體和 IC 封裝熱指標 (Rev. D) PDF | HTML 英語版 (Rev.D) PDF | HTML 2024年 4月 24日
應用手冊 Switching regulator fundamentals (Rev. C) PDF | HTML 2019年 2月 5日
應用手冊 Cap Drop Offline Supply for E-Meters 2015年 6月 16日
應用手冊 Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A) 2015年 6月 16日
應用手冊 Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 2014年 9月 12日
應用手冊 AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013年 4月 24日
應用手冊 AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 2013年 4月 23日
應用手冊 AN-1197 Selecting Inductors for Buck Converters (Rev. B) 2013年 4月 23日
應用手冊 AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 2013年 4月 23日
應用手冊 AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 2013年 4月 23日
應用手冊 AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 2013年 4月 23日
應用手冊 AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 2013年 4月 23日
應用手冊 AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013年 4月 23日
應用手冊 AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013年 4月 23日
應用手冊 Input and Output Capacitor Selection 2005年 9月 19日
更多文獻資料 SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005年 7月 12日
應用手冊 AN-643 EMI/RFI Board Design (Rev. B) 2004年 5月 3日

設計和開發

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仿真模型

LM2575HV PSpice Transient Model

SNVMB26.ZIP (45 KB) - PSpice Model
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仿真模型

LM2575HV Unencrypted PSpice Transient Model

SNVMB25.ZIP (2 KB) - PSpice Model
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封裝 引腳 CAD 符號、封裝和 3D 模型
PDIP (NBG) 16 Ultra Librarian
SOIC (DW) 24 Ultra Librarian
TO-220 (KC) 5 Ultra Librarian
TO-220 (NDH) 5 Ultra Librarian
TO-263 (KTT) 5 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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