IC元器件

LMR14203XMK/NOPB

参考价格:¥7.66-¥9.94

电源管理 IC

LMR14203XMK/NOPB 供应商

LMR14203XMK/NOPB 属性参数

  • 制造商:National Semiconductor (TI)
  • 最大输入电压:42 V
  • 开关频率:1.25 MHz
  • 输出电压:0.765 V to 34 V
  • 输出电流:0.3 A
  • 最大工作温度:+ 85 C
  • 安装风格:SMD/SMT
  • 封装 / 箱体:SOT-23-6
  • Input Voltage MIN:4.5 V
  • 最小工作温度:- 40 C
  • 封装:Reel
  • 工厂包装数量:1000
  • 类型:Step Down

产品特性

  • Input Voltage Range of 4.5V to 42V
  • Output Voltage Range of 0.765V to 34V
  • Output Current up to 0.3A
  • 1.25 MHz Switching Frequency
  • Low Shutdown Iq, 16 µA Typical
  • Short Circuit Protected
  • Internally Compensated
  • Soft-Start Function
  • Thin SOT-23-6 Package (2.97 x 1.65 x 1mm)
  • Fully Enabled for WEBENCH® Power Designer
  • Tight Accuracy for Powering Digital ICs
  • Extremely Easy to Use
  • Tiny Overall Solution Reduces System Cost

产品概述

The LMR14203 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, it is suitable for a wide range of applications such as power conditioning from unregulated sources. They feature a low RDSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 1.25 MHz allowing the use of small external components while still being able to have low output voltage ripple. Soft-start can be implemented using the shutdown pin with an external RC circuit allowing the user to tailor the soft-start time to a specific application.The LMR14203 is optimized for up to 300 mA load current.Additional features include: thermal shutdown, VIN under-voltage lockout, and gate drive under-voltage lockout. The LMR14203 is available in a low profile SOT-6L package.

LMR14203XMK/NOPB 电路图