Datasheet > LM5007_08

LM5007_08

更新时间： 2024-11-28 04:20:07

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器开关
页数	文件大小	规格书
12页	281K
描述
High Voltage (80V) Step Down Switching Regulator

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LM5007_08 数据手册

February 5, 2008

LM5007

High Voltage (80V) Step Down Switching Regulator

General Description

Features

The LM5007 Step Down Switching Regulator features all of

the functions needed to implement low cost, efficient, Buck

bias regulators. This high voltage regulator contains an 80 V,

0.7A N-Channel Buck Switch. The device is easy to apply and

is provided in the MSOP-8 and the thermally enhanced LLP-8

packages. The regulator is based on a hysteretic control

scheme using an on time inversely proportional to V_IN. This

feature allows the operating frequency to remain relatively

constant with load and input voltage variations. The hysteretic

control requires no control loop compensation, while provid-

ing very fast load transient response. An intelligent current

limit is implemented in the LM5007 with forced off time that is

inversely proportional to V_OUT. This current limiting scheme

reduces load current foldback. Additional protection features

include: Thermal Shutdown, Vcc undervoltage lockout, gate

drive undervoltage lockout, and Max Duty Cycle limiter.

Integrated 80V, 0.7A N-Channel Buck Switch

■

Internal HV Vcc Regulator

No Control Loop Compensation Required

Ultra-Fast Transient Response

On Time Varies Inversely with Line Voltage

Operating Frequency Nearly Constant with Varying Line

Voltage

Adjustable Output Voltage

■

Highly Efficient Operation

Precision Reference

Low Bias Current

Intelligent Current Limit Protection

Thermal Shutdown

External Shutdown Control

Typical Applications

Non-Isolated Buck Regulator

■

Secondary High Voltage Post Regulator

+42V Automotive Systems

Package

MSOP - 8

■

LLP - 8 (4mm x 4mm)

Connection Diagram

20078302

8-Lead MSOP, LLP

Ordering Information

Order Number

LM5007MM

LM5007MMX

LM5007SD

Package Type

MSOP-8

LLP-8

NSC Package Drawing

MUA08A

Supplied As

1000 Units on Tape and Reel

3500 Units on Tape and Reel

1000 Units on Tape and Reel

4500 Units on Tape and Reel

MUA08A

SDC08A

LM5007SDX

LLP-8

SDC08A

200783

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与LM5007_08相关器件

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LM5007_14	TI	获取价格	High Voltage (80V) Step Down Switching Regulator
LM5007_15	TI	获取价格	High Voltage 80-V Step Down Switching Regulator
LM5007EP	TI	获取价格	Enhanced Plastic High Voltage (80V) Step Down Switching Regulator
LM5007MM	TI	获取价格	High Voltage (80V) Step Down Switching Regulator
LM5007MM	NSC	获取价格	High Voltage (80V) Step Down Switching Regulator
LM5007MM/NOPB	TI	获取价格	High Voltage (80V) Step Down Switching Regulator
LM5007MMEP	TI	获取价格	暂无描述
LM5007MMEP/NOPB	TI	获取价格	SWITCHING REGULATOR, PDSO8, PLASTIC, MSOP-8
LM5007MMX	TI	获取价格	High Voltage (80V) Step Down Switching Regulator
LM5007MMX	NSC	获取价格	High Voltage (80V) Step Down Switching Regulator