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更新日期:2024-04-01 00:04:00

产品简介:用于射频功率放大器的 650mA 微型、可调节、降压 DC-DC 转换器

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  • 参考价格:¥13.46-¥29.60

LM3205SD-2/NOPB 供应商

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LM3205SD-2/NOPB 中文资料属性参数

  • 制造商:National Semiconductor (TI)
  • 输入电压:5.5 V
  • 开关频率:2000 KHz
  • 输出电压:0.8 V to 3.6 V
  • 输出电流:0.65 A
  • 输出端数量:1
  • 最大工作温度:+ 85 C
  • 安装风格:SMD/SMT
  • 封装 / 箱体:LLP EP
  • 最小工作温度:- 30 C
  • 封装:Reel
  • 工厂包装数量:1000

产品特性

  • 2 MHz (typ.) PWM Switching Frequency
  • Operates from a Single Li-Ion Cell (2.7V to 5.5V)
  • Variable Output Voltage (0.8V to 3.6V)
  • Fast Output Voltage Transient (0.8V to 3.6V in 20µs)
  • 650mA Maximum Load Capability
  • High Efficiency (96% Typ at 4.2VIN, 3.4VOUT at 400mA) from Internal Synchronous Rectification
  • Current Overload Protection
  • Thermal Overload Protection
  • Packages 8-Pin DSBGA (Lead Free)
  • 10-Pin WSON

产品概述

The LM3205 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single Lithium-Ion cell, however they may be used in many other applications. It steps down an input voltage from 2.7V to 5.5V to a variable output voltage from 0.8V(typ.) to 3.6V(typ.). Output voltage is set using a VCON analog input for controlling power levels and efficiency of the RF PA.The LM3205 offers superior performance for mobile phones and similar RF PA applications. Fixed-frequency PWM operation minimizes RF interference. Shutdown function turns the device off and reduces battery consumption to 0.01 µA (typ.).The LM3205 is available in DSBGA package and WSON package. For all other package options contact your local TI sales office.A high switching frequency (2 MHz) allows use of tiny surface-mount components. Only three small external surface-mount components, an inductor and two ceramic capacitors are required.

LM3205SD-2/NOPB 电路图

LM3205SD-2/NOPB 电路图

LM3205SD-2/NOPB 电路图

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