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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LMR10520

現行

採用 WSON 封裝的 5.5-VIN、2-A 降壓電壓穩壓器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能與所比較的裝置相似
TPS62825 現行 採用 1.5-mm x 1.5-mm QFN 封裝，具有 1% 準確度的 2.4-V 至 5.5-V 輸入、2-A 降壓轉換器 2-A DC/DC converter with 1% accuracy and 31-mm² total BOM size.
TPSM82822 現行 具有整合式電感器、採用 2 x 2.5 x 1.1 mm μSIP 封裝的 5.5V 輸入、2A 降壓模組 2-A module with 1% accuracy and 23-mm² total BOM size.

LMR10520

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1600 Switching frequency (max) (kHz) 3000 Features Enable Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 4.5 Iq (typ) (µA) 3300 Duty cycle (max) (%) 94
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1600 Switching frequency (max) (kHz) 3000 Features Enable Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 4.5 Iq (typ) (µA) 3300 Duty cycle (max) (%) 94
WSON (NGG) 6 9 mm² 3 x 3
  • Input Voltage Range of 3 V to 5.5 V
  • Output Voltage Range of 0.6 V to 4.5 V
  • Output Current up to 2 A
  • 1.6-MHz (LMR10520X) and 3-MHz (LMR10520Y) Switching Frequencies
  • Low Shutdown IQ, 30 nA Typical
  • Internal Soft Start
  • Internally Compensated
  • Current-Mode PWM Operation
  • Thermal Shutdown
  • Tiny Overall Solution Reduces System Cost
  • WSON (3 × 3 × 0.8 mm) Packaging
  • Create a custom design using the LMR10520 with the WEBENCH® Power Designer
  • Input Voltage Range of 3 V to 5.5 V
  • Output Voltage Range of 0.6 V to 4.5 V
  • Output Current up to 2 A
  • 1.6-MHz (LMR10520X) and 3-MHz (LMR10520Y) Switching Frequencies
  • Low Shutdown IQ, 30 nA Typical
  • Internal Soft Start
  • Internally Compensated
  • Current-Mode PWM Operation
  • Thermal Shutdown
  • Tiny Overall Solution Reduces System Cost
  • WSON (3 × 3 × 0.8 mm) Packaging
  • Create a custom design using the LMR10520 with the WEBENCH® Power Designer

The LMR10520 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 6-pin WSON 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, the LMR10520 is easy to use. The ability to drive 2-A loads with an internal 150-mΩ PMOS switch results in the best power density available. The world-class control circuitry allows on-times as low as 30 ns, thus supporting exceptionally high frequency conversion over the entire 3-V to 5.5-V input operating range down to the minimum output voltage of 0.6 V. The LMR10520 is internally compensated, so it is simple to use and requires few external components. Even though the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low stand-by current of 30 nA. The LMR10520 uses 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 overvoltage protection.

The LMR10520 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 6-pin WSON 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, the LMR10520 is easy to use. The ability to drive 2-A loads with an internal 150-mΩ PMOS switch results in the best power density available. The world-class control circuitry allows on-times as low as 30 ns, thus supporting exceptionally high frequency conversion over the entire 3-V to 5.5-V input operating range down to the minimum output voltage of 0.6 V. The LMR10520 is internally compensated, so it is simple to use and requires few external components. Even though the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low stand-by current of 30 nA. The LMR10520 uses 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 overvoltage protection.
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類型 標題 日期
* Data sheet LMR10520 5.5-VIN, 2-A Step-Down Voltage Regulator in WSON datasheet (Rev. C) PDF | HTML 2019年 6月 13日
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024年 3月 25日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note Absolute Maximum Ratings for Soldering (Rev. D) 2016年 6月 9日
EVM User's guide AN-2184 LMR10510/LMR10515/LMR10520 Demo Board (Rev. A) 2013年 4月 26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

設計與開發

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模擬型號

LMR10520X PSpice Transient Model

SNVM159.ZIP (193 KB) - PSpice Model
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模擬型號

LMR10520X Unencrypted PSpice Transient Model

SNVM941.ZIP (2 KB) - PSpice Model
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模擬型號

LMR10520Y PSpice Transient Model

SNVM193.ZIP (194 KB) - PSpice Model
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模擬型號

LMR10520Y Unencrypted PSpice Transient Model

SNVM940.ZIP (2 KB) - PSpice Model
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