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AC/DC & DC/DC converters (integrated FET)

LM3205

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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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LM3205

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产品详情

Iout (max) (A) 0.65 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Topology Buck Type Converter Vout (min) (V) 0.8 Vout (max) (V) 3.6 Rating Catalog Operating temperature range (°C) -30 to 85
Iout (max) (A) 0.65 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Topology Buck Type Converter Vout (min) (V) 0.8 Vout (max) (V) 3.6 Rating Catalog Operating temperature range (°C) -30 to 85
WSON (DSC) 10 9 mm² 3 x 3
  • 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

All trademarks are the property of their respective owners.

  • 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

All trademarks are the property of their respective owners.

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.

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.
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类型 标题 下载最新的英语版本 日期
* 数据表 LM3205 650mA Mini, Adj, Step-Down DC-DC Cnvtr for RF Pwr Amps 数据表 (Rev. E) 2013年 4月 2日
EVM 用户指南 AN-1413 LM3205 Evaluation Board (Rev. A) 2013年 4月 30日
应用手册 如何利用直流/直流转换器提高射频功率放大器的效率 英语版 2007年 3月 21日
应用手册 Application Note 1413 LM3205 Evaluation Board (cn) 最新英语版本 (Rev.A) 2006年 1月 17日

设计和开发

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封装 引脚 下载
WSON (DSC) 10 查看选项
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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