Datasheet > LM3151_14

LM3151_14

更新时间： 2024-11-26 02:58:15

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德州仪器 - TI		/
页数	文件大小	规格书
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描述
SIMPLE SWITCHERÂ® CONTROLLER, High Input Voltage Synchronous Step-Down

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LM3151_14 数据手册

LM3151, LM3152, LM3153

www.ti.com

SNVS562G –SEPTEMBER 2008–REVISED MARCH 2011

LM3151/LM3152/LM3153 SIMPLE SWITCHER CONTROLLER, High Input Voltage

Synchronous Step-Down

Check for Samples: LM3151, LM3152, LM3153

FEATURES

DESCRIPTION

The LM3151/2/3 SIMPLE SWITCHER Controller is an

easy to use and simplified step down power controller

capable of providing up to 12A of output current in a

typical application. Operating with an input voltage

range from 6V-42V, the LM3151/2/3 features a fixed

output voltage of 3.3V, and features switching

frequencies of 250 kHz, 500 kHz, and 750 kHz. The

synchronous architecture provides for highly efficient

234

•

PowerWise™ Step-down Controller

6V to 42V Wide Input Voltage Range

Fixed Output Voltage of 3.3V

•

Fixed Switching Frequencies of 250 kHz/500

kHz/750 kHz

•

No Loop Compensation Required

Fully WEBENCH^®Enabled

Low External Component Count

Constant On-Time Control

Ultra-Fast Transient Response

Stable with Low ESR Capacitors

Output Voltage Pre-bias Startup

Valley Current Limit

designs. The LM3151/2/3 controller employs

Constant On-Time (COT) architecture with

proprietary Emulated Ripple Mode (ERM) control that

allows for the use of low ESR output capacitors,

which reduces overall solution size and output

voltage ripple. The Constant On-Time (COT)

regulation architecture allows for fast transient

response and requires no loop compensation, which

reduces external component count and reduces

design complexity.

Programmable Soft-start

Fault protection features such as thermal shutdown,

under-voltage lockout, over-voltage protection, short-

circuit protection, current limit, and output voltage pre-

bias startup allow for a reliable and robust solution.

TYPICAL APPLICATIONS

•

Telecom

Networking Equipment

Routers

The LM3151/2/3 SIMPLE SWITCHER concept

provides for an easy to use complete design using a

minimum number of external components and TI’s

WEBENCH online design tool. WEBENCH provides

design support for every step of the design process

and includes features such as external component

calculation with a new MOSFET selector, electrical

simulation, thermal simulation, and Build-It boards for

prototyping.

Security Surveillance

Power Modules

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.

PowerWise is a trademark of Texas Instruments.

SIMPLE SWITCHER, WEBENCH are registered trademarks of Texas Instruments.

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.

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与LM3151_14相关器件

型号	品牌	获取价格	描述	数据表
LM3151MH-2.5	NSC	获取价格	IC SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO14, TSSOP-14, Switching Regulator
LM3151MH-3.3	NSC	获取价格	SIMPLE SWITCHER® CONTROLLER, High Input Volta
LM3151MH-3.3/NOPB	TI	获取价格	LM3151/LM3152/LM3153 SIMPLE SWITCHERÂ® CONTRO
LM3151MH-5.0	NSC	获取价格	IC SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO14, TSSOP-14, Switching Regulator
LM3151MHE-2.5	NSC	获取价格	IC SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO14, TSSOP-14, Switching Regulator
LM3151MHE-3.3	NSC	获取价格	SIMPLE SWITCHER® CONTROLLER, High Input Volta
LM3151MHE-3.3/NOPB	TI	获取价格	LM3151/LM3152/LM3153 SIMPLE SWITCHERÂ® CONTRO
LM3151MHE-5.0	NSC	获取价格	IC SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO14, TSSOP-14, Switching Regulator
LM3151MHX-2.5	NSC	获取价格	IC SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO14, TSSOP-14, Switching Regulator
LM3151MHX-3.3	NSC	获取价格	SIMPLE SWITCHER® CONTROLLER, High Input Volta

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