LMR12007

現行

採用超薄 SOT23 封裝的 750mA 負載降壓 DC/DC 穩壓器

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功能與所比較的裝置相似
TPS62932 現行 採用 SOT-583 封裝的 3.8-V 至 30-V 輸入、2-A、200-kHz 至 2.2-MHz、低 IQ 同步降壓轉換器 Higher efficiency with lower IQ and wider VIN in a smaller package.

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.75 Vin (min) (V) 3 Vin (max) (V) 18 Switching frequency (min) (kHz) 550 Switching frequency (max) (kHz) 1600 Features Enable Control mode current mode Vout (min) (V) 1.25 Vout (max) (V) 16 Iq (typ) (µA) 1500 Duty cycle (max) (%) 96
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.75 Vin (min) (V) 3 Vin (max) (V) 18 Switching frequency (min) (kHz) 550 Switching frequency (max) (kHz) 1600 Features Enable Control mode current mode Vout (min) (V) 1.25 Vout (max) (V) 16 Iq (typ) (µA) 1500 Duty cycle (max) (%) 96
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Thin SOT-6 Package
  • 3.0V to 18V Input Voltage Range
  • 1.25V to 16V Output Voltage Range
  • 750mA Output Current
  • 550kHz (LMR12007Y) and 1.6MHz
    (LMR12007X) Switching Frequencies
  • 350mΩ NMOS Switch
  • 30nA Shutdown Current
  • 1.25V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current-Mode, PWM Operation
  • WEBENCH Online Design Tool
  • Thermal Shutdown
  • Thin SOT-6 Package
  • 3.0V to 18V Input Voltage Range
  • 1.25V to 16V Output Voltage Range
  • 750mA Output Current
  • 550kHz (LMR12007Y) and 1.6MHz
    (LMR12007X) Switching Frequencies
  • 350mΩ NMOS Switch
  • 30nA Shutdown Current
  • 1.25V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current-Mode, PWM Operation
  • WEBENCH Online Design Tool
  • Thermal Shutdown

The LMR12007 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 6-pin Thin SOT package. It provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.

With a minimum of external components and online design support through WEBENCH, the LMR12007 is easy to use. The ability to drive 750mA loads with an internal 350mΩ NMOS switch using state-of-the-art 0.5µm BiCMOS technology results in the best power density available. The world class control circuitry allows for on-times as low as 13ns, thus supporting exceptionally high frequency conversion over the entire 3V to 18V input operating range down to the minimum output voltage of 1.25V. Switching frequency is internally set to 550kHz (LMR12007Y) or 1.6MHz (LMR12007X), allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External shutdown is included, featuring an ultra-low stand-by current of 30nA. The LMR12007 utilizes current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output over-voltage protection.

The LMR12007 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 6-pin Thin SOT package. It provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.

With a minimum of external components and online design support through WEBENCH, the LMR12007 is easy to use. The ability to drive 750mA loads with an internal 350mΩ NMOS switch using state-of-the-art 0.5µm BiCMOS technology results in the best power density available. The world class control circuitry allows for on-times as low as 13ns, thus supporting exceptionally high frequency conversion over the entire 3V to 18V input operating range down to the minimum output voltage of 1.25V. Switching frequency is internally set to 550kHz (LMR12007Y) or 1.6MHz (LMR12007X), allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External shutdown is included, featuring an ultra-low stand-by current of 30nA. The LMR12007 utilizes current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output over-voltage protection.

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類型 標題 日期
* Data sheet LMR12007 Thin SOT23 750mA Load Step-Down DC-DC Regulator datasheet 2013年 9月 6日
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024年 3月 25日
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013年 4月 24日
Application note AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 2013年 4月 23日
Application note AN-1197 Selecting Inductors for Buck Converters (Rev. B) 2013年 4月 23日
Application note AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 2013年 4月 23日
Application note AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 2013年 4月 23日
Application note AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 2013年 4月 23日
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013年 4月 23日
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013年 4月 23日
Application note Input and Output Capacitor Selection 2005年 9月 19日
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005年 7月 12日
Application note AN-643 EMI/RFI Board Design (Rev. B) 2004年 5月 3日

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23-THN (DDC) 6 Ultra Librarian

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