Datasheet > LM25007_14

LM25007_14

更新时间： 2024-11-11 02:58:51

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德州仪器 - TI		/
页数	文件大小	规格书
19页	924K
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42V, 0.5A Step-Down Switching Regulator

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LM25007_14 数据手册

LM25007

www.ti.com

SNVS401C –JANUARY 2006–REVISED FEBRUARY 2013

LM25007 42V, 0.5A Step-Down Switching Regulator

Check for Samples: LM25007

FEATURES

DESCRIPTION

The LM25007 is a monolithic step-down switching

regulator featuring all of the functions needed to

•

Integrated 0.74Ω N-Channel MOSFET Switch

Guaranteed 0.5A Output Current

Ultra-Fast Transient Response

implement

a low cost, efficient, power supply.

Capable of driving a 0.5A load over a 9V-42V input

voltage range, this device is easy to apply and is

provided in the small VSSOP-8 and the thermally

enhanced WSON-8 packages. Ultra-fast transient

response is achieved through the use of a constant

on-time architecture with Vin feed forward. This

feature provides an almost constant operating

frequency over load and input voltage variations. The

operating frequency can be adjusted with a single

resistor. This architecture is easy to use and tolerant

of component selection. An intelligent current limit is

implemented in the LM25007 with forced off time that

is inversely proportional to Vout thus ensuring

recovery from fault conditions. The output voltage

may be set from 2.5V to >30V. To improve efficiency

in light load applications, the Vcc pin can be

connected to an external voltage source to eliminate

the drop through the internal regulator. Additional

features include: thermal shutdown, Vcc under-

voltage lockout, gate drive under-voltage lockout, and

max duty cycle limiter.

Up to 800kHz Operation

No Control Loop Compensation Required

Vin Feed Forward Provides Constant

Operating Frequency

•

2% Accurate 2.5V Feedback from -40°C to

125°C

•

Highly Efficient Operation

Intelligent Current Limit Protection

External Shutdown Control

Thermal Shutdown

VSSOP and Thermally Enhanced WSON

Packages

TYPICAL APPLICATIONS

•

12VDC and 24VDC Distributed Rail Systems

24VAC Systems

Automotive Body Electronics and Telematics

Industrial Systems

HB-LED Constant Current Source

Package:

–

VSSOP-8

WSON-8 (4mm x 4mm)

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...19

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与LM25007_14相关器件

型号	品牌	获取价格	描述	数据表
LM25007MM	NSC	获取价格	42V, 0.5A Step-Down Switching Regulator
LM25007MM	TI	获取价格	LM25007 42V, 0.5A Step-Down Switching Regulator
LM25007MM/NOPB	TI	获取价格	9-42V Wide Vin, 0.5A, Constant On-Time Non-Synchronous Buck Regulator 8-VSSOP -40 to 125
LM25007MMX	NSC	获取价格	42V, 0.5A Step-Down Switching Regulator
LM25007MMX	TI	获取价格	LM25007 42V, 0.5A Step-Down Switching Regulator
LM25007MMX/NOPB	TI	获取价格	LM25007 42V, 0.5A Step-Down Switching Regulator
LM25007SD	TI	获取价格	LM25007 42V, 0.5A Step-Down Switching Regulator
LM25007SD	NSC	获取价格	42V, 0.5A Step-Down Switching Regulator
LM25007SD/NOPB	TI	获取价格	9-42V Wide Vin, 0.5A, Constant On-Time Non-Synchronous Buck Regulator 8-WSON -40 to 125
LM25007SDX	NSC	获取价格	42V, 0.5A Step-Down Switching Regulator

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