Datasheet > LM5008_09

LM5008_09

更新时间： 2024-11-28 05:42:23

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
16页	375K
描述
High Voltage (100V) Step Down Switching Regulator

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LM5008_09 数据手册

April 21, 2009

LM5008

High Voltage (100V) Step Down Switching Regulator

General Description

Features

The LM5008 Step Down Switching Regulator features all of

the functions needed to implement a low cost, efficient, Buck

bias regulator. This high voltage regulator contains an 100 V

N-Channel Buck Switch. The device is easy to implement 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. The hysteretic control requires no loop compensa-

tion. An intelligent current limit is implemented with forced

OFF time, which is inversely proportional to Vout. This

scheme ensures short circuit protection while providing min-

imum foldback. Other protection features include: Thermal

Shutdown, V_CCunder-voltage lockout, Gate drive under-volt-

age lockout, and Max Duty Cycle limiter

Integrated 100V, N-Channel buck switch

■

Internal V_CCregulator

No loop compensation required

Ultra-Fast transient response

On time varies inversely with line voltage

Operating frequency remains constant with varying line

voltage and load current

Adjustable output voltage

■

Highly efficient operation

Precision internal reference

Low bias current

Intelligent current limit protection

Thermal shutdown

Typical Applications

Non-Isolated Telecommunication Buck Regulator

■

Secondary High Voltage Post Regulator

+42V Automotive Systems

Package

MSOP - 8

■

LLP - 8 (4mm x 4mm)

Connection Diagram

20097902

8-Lead MSOP, LLP

Ordering Information

Order Number

LM5008MM

Package Type

NSC Package Drawing

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

1000 Units on Tape and Reel

4500 Units on Tape and Reel

MSOP-8

MUA08A

LM5008MMX

LM5008SD

SDC08A

SDC08B

LM5008SDX

LM5008SDC

LM5008SDCX

LLP-8

200979

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与LM5008_09相关器件

型号	品牌	获取价格	描述	数据表
LM5008A	NSC	获取价格	100V, 350 mA Constant On-Time Buck Switching Regulator
LM5008A	TI	获取价格	100-V 350-mA Constant On-Time Buck Switching Regulator
LM5008A_14	TI	获取价格	350 mA Constant On-Time Buck Switching Regulator
LM5008AMM	NSC	获取价格	100V, 350 mA Constant On-Time Buck Switching Regulator
LM5008AMM/NOPB	TI	获取价格	100-V 350-mA Constant On-Time Buck Switching Regulator
LM5008AMMX	NSC	获取价格	100V, 350 mA Constant On-Time Buck Switching Regulator
LM5008AMMX/NOPB	TI	获取价格	100-V 350-mA Constant On-Time Buck Switching Regulator
LM5008ASD	NSC	获取价格	100V, 350 mA Constant On-Time Buck Switching Regulator
LM5008ASD/NOPB	TI	获取价格	100-V 350-mA Constant On-Time Buck Switching Regulator
LM5008ASDX	NSC	获取价格	100V, 350 mA Constant On-Time Buck Switching Regulator