Datasheet > LM3207_07

LM3207_07

更新时间： 2024-09-26 05:42:03

品牌	Logo	应用领域
美国国家半导体 - NSC		转换器放大器射频功率放大器
页数	文件大小	规格书
24页	1595K
描述
650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers with Integrated Vref LDO

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LM3207_07 数据手册

April 2007

LM3207

650mA Miniature, Adjustable, Step-Down DC-DC Converter

for RF Power Amplifiers with Integrated Vref LDO

General Description

Features

The LM3207 is a DC-DC converter optimized for powering

WCDMA / CDMA 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.). Out-

put voltage is set using a V_CONanalog input for controlling

power levels and efficiency of the RF PA.

2MHz (typ.) PWM Switching Frequency

■

Operates from a single Li-Ion cell (2.7V to 5.5V)

Variable Output Voltage (0.8V to 3.6V)

650mA Maximum load capability

High Efficiency (95% Typ at 3.9V_IN, 3.4V_OUTat 400mA)

■

from internal synchronous rectification

Integrated Vref LDO

■

The LM3207 also provides a regulated reference voltage

(Vref) required by linear RF power amplifiers through an in-

tegrated LDO that has a maximum Iref up to 10 mA. See

Ordering Information table on page 2 for Voltage Options.

Regulated LDO Output up to 10mA max

Fast 3uS Vref LDO On/Off Time

9-pin micro SMD Package

The LM3207 is available in a 9-pin lead free micro SMD pack-

age. High switching frequency (2MHz) allows use of surface-

mount components. Only four small external surface-mount

components are required, an inductor and three ceramic ca-

pacitors.

Current Overload Protection

Thermal Overload Protection

Applications

Cellular Phones

■

Hand-Held Radios

RF PC Cards

Battery Powered RF Devices

Typical Application

20165301

FIGURE 1. LM3207 Typical Application

201653

www.national.com

12 3 4 5 6 7...24

中文翻译

下载PDF

与LM3207_07相关器件

型号	品牌	获取价格	描述	数据表
LM3207TL	NSC	获取价格	650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers with Integr
LM3207TL/NOPB	TI	获取价格	650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers 9-DSBGA
LM3207TL/NOPB	NSC	获取价格	IC 1.2 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, PBGA9, ROHS COMPLIANT, MICRO SM
LM3207TL-2.53	NSC	获取价格	650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers with Integr
LM3207TL-2.53/NOPB	NSC	获取价格	IC 1.2 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, PBGA9, ROHS COMPLIANT, MICRO SM
LM3207TLX	NSC	获取价格	650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers with Integr
LM3207TLX/NOPB	NSC	获取价格	IC 1.2 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, PBGA9, ROHS COMPLIANT, MICRO SM
LM3207TLX-2.53	NSC	获取价格	650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers with Integr
LM3207TLX-2.53/NOPB	NSC	获取价格	IC 1.2 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, PBGA9, ROHS COMPLIANT, MICRO SM
LM3207TLX-2.53/NOPB	TI	获取价格	650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers 9-DSBGA

与LM3207_07相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

9
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

8
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

12
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

17

产品中心

服务支持

精选活动

关于我们

帮助中心

LM3207_07

LM3207_07 数据手册

与LM3207_07相关器件

与LM3207_07相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LM3207_07

LM3207_07 数据手册

与LM3207_07相关器件

与LM3207_07相关文章

您还可以找

您在本页遇到什么问题？