Datasheet > LM3200

LM3200

更新时间： 2024-11-21 02:58:51

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德州仪器 - TI		/
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描述
Miniature, Adjustable, Step-Down DC-DC Converter

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LM3200 数据手册

LM3200

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SNVS319C –NOVEMBER 2004–REVISED APRIL 2013

LM3200 Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF

Power Amplifiers

Check for Samples: LM3200

FEATURES

DESCRIPTION

The LM3200 is a DC-DC converter optimized for

powering RF power amplifiers (PAs) from a single

Lithium-Ion cell. It steps down an input voltage of

2.7V to 5.5V to a variable output voltage of 0.8V to

3.6V. The output voltage is set using an analog input

( V_CON) for optimizing efficiency of the RF PA at

various power levels.

•

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)

300 mA Maximum Load Capability (PWM

Mode)

The LM3200 offers superior features and

performance for mobile phones and similar RF PA

applications. Fixed-frequency PWM mode minimizes

RF interference. Bypass mode turns on an internal

bypass switch to power the PA directly from the

battery. LM3200 has both forced and automatic

bypass modes. Shutdown mode turns the device off

and reduces battery consumption to 0.1 µA (typ.).

The LM3200 is available in a 10-pin lead free DSBGA

package. 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.

•

500 mA Maximum Load Capability (Bypass

Mode)

•

PWM, Forced and Automatic Bypass Mode

High Efficiency (96% Typ at 3.6V_IN, 3.2V_OUTat

120 mA) from Internal Synchronous

Rectification

•

10-pin DSBGA Package

Current Overload Protection

Thermal Overload Protection

APPLICATIONS

•

Cellular Phones

Hand-Held Radios

RF PC Cards

Battery Powered RF Devices

TYPICAL APPLICATION

2.7V to 5.5V

BYPOUT

OUT

2.2 mH

0.8V to 3.6V

BYP

10 mF

OUT

= 3 x V

CON

LM3200

CON

OUT

PGND SGND

CON

4.7 mF

0.267V to 1.20V

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...23

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与LM3200相关器件

型号	品牌	获取价格	描述	数据表
LM3200_05	NSC	获取价格	Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
LM32003DJ	LITTELFUSE	获取价格	The Class J Fuse Disconnect Switch combines a switch and multiple fuses in a single, compa
LM32003NJ	LITTELFUSE	获取价格	The Class J Fuse Disconnect Switch combines a switch and multiple fuses in a single, compa
LM32003PJ	LITTELFUSE	获取价格	The Class J Fuse Disconnect Switch combines a switch and multiple fuses in a single, compa
LM3200TL	NSC	获取价格	Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
LM3200TL/NOPB	TI	获取价格	Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
LM3200TLX	NSC	获取价格	Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
LM3200TLX/NOPB	TI	获取价格	Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers
LM32010P	SHARP	获取价格	Medium Size Graphic Type LCD Module
LM320-12	ETC	获取价格	Analog IC

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