Datasheet > LM5007_15

LM5007_15

更新时间： 2024-01-14 06:15:59

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High Voltage 80-V Step Down Switching Regulator

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LM5007_15 数据手册

LM5007

www.ti.com

SNVS252F –SEPTEMBER 2003–REVISED MARCH 2013

High Voltage (80V) Step Down Switching Regulator

Check for Samples: LM5007

FEATURES

DESCRIPTION

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 VSSOP-8 and the thermally enhanced WSON-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

providing 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

VSSOP-8 and WSON-8 (4mm x 4mm) Packages

APPLICATIONS

•

Non-Isolated Buck Regulator

Secondary High Voltage Post Regulator

+42V Automotive Systems

Connection Diagram

V_IN

V_CC

BST

R_CL

R_ON

RTN

Figure 1. 8-Lead VSSOP or WSON

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...17

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与LM5007_15相关器件

型号	品牌	获取价格	描述	数据表
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
LM5007MMX/NOPB	TI	获取价格	High Voltage (80V) Step Down Switching Regulator
LM5007MMXEP	TI	获取价格	暂无描述

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