Datasheet > LM3263

LM3263

更新时间： 2024-11-12 12:02:39

品牌	Logo	应用领域
德州仪器 - TI		转换器放大器射频功率放大器
页数	文件大小	规格书
39页	2173K
描述
LM3263 High-Current Step-Down DC-DC Converter with MIPIÂ® RF Front-End Control Interface for RF Power Amplifiers

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LM3263 数据手册

LM3263

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SNVS837 –JUNE 2013

LM3263 High-Current Step-Down DC-DC Converter with MIPI® RF Front-End

Control Interface for RF Power Amplifiers

Check for Samples: LM3263

FEATURES

DESCRIPTION

The LM3263 is a DC-DC converter optimized for

•

MIPI^®RFFE Digital Control Interface

powering multi-mode multi-band RF power amplifiers

(PAs) from a single Lithium-Ion cell. The LM3263

steps down an input voltage from 2.7V to 5.5V to a

dynamically adjustable output voltage of 0.4V to 3.6V.

The output voltage is externally programmed through

the RFFE Digital Control Interface and is set to

ensure efficient operation at all power levels of the

RF PA.

•

High-Efficiency PFM and PWM Modes with

Internal Seamless Transition

•

Operates from a Single Li-Ion Cell: 2.7V to 5.5V

Dynamically Adjustable Output Voltage: 0.4V

to 3.6V (typ.) in PFM and PWM Modes

•

2.5A Maximum Load Current in PWM Mode

2.7 MHz (typ.) Switching Frequency

ACB (reduces inductor requirements and size)

Internal Compensation

The LM3263 operates in modulated frequency PWM

mode producing a small and predictable amount of

output voltage ripple. PWM mode enables best

meeting power requirements and stringent spectral

compliance, with the minimal amount of filtering and

excess headroom. When operating in PFM mode, the

LM3263 enables the lowest current consumption

across PA output power level settings and therefore

maximizes system efficiency.

Current and Thermal Overload Protection

16-bump DSBGA Package

Very small Solution Size: approx. 9.8 mm²

APPLICATIONS

The LM3263 has a unique Active Current assist and

analog Bypass (ACB) feature to minimize inductor

size without any loss of output regulation for the

entire battery voltage and RF output power range,

until dropout. ACB provides a parallel current path,

when needed, to limit the maximum inductor current

to 1.45A (typ) while still driving a 2.5A load. The

analog bypass feature also enables operation with

minimal dropout voltage.

•

Smartphones

RF PC Cards

Tablets, eBook Readers

Handheld Radios

Battery-Powered RF Devices

The LM3263 is available in a small 2 mm x 2 mm

chip-scale 16-bump DSBGA package.

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.

MIPI is a registered trademark of Mobile Industry Processor Interface Alliance.

All other 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...39

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与LM3263相关器件

型号	品牌	获取价格	描述	数据表
LM3263_14	TI	获取价格	High-Current Step-Down DC-DC Converter with M
LM3263TME/NOPB	TI	获取价格	LM3263 High-Current Step-Down DC-DC Converter
LM3263TMX/NOPB	TI	获取价格	LM3263 High-Current Step-Down DC-DC Converter
LM3269	TI	获取价格	Seamless-Transition Buck-Boost Converter for 3G and 4G RF Power Amplifiers
LM3269TLE/NOPB	TI	获取价格	Seamless Transition Buck/Boost Converter for LTE and HSPA RF Power Amplifiers 12-DSBGA -30
LM3269TLX/NOPB	TI	获取价格	用于 LTE 和 HSPA 射频功率放大器的无缝转换降压/升压转换器 \| YZR \| 12
LM326H	NSC	获取价格	VOLTAGE REGULATORS
LM326N	NSC	获取价格	VOLTAGE REGULATORS
LM326N/B+	ETC	获取价格	Negative & Positive Fixed Voltage Regulator
LM326S	TI	获取价格	IC,VOLT REGULATOR,FIXED,+-12V,BIPOLAR,DIP,14PIN,PLASTIC

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