LM5017

更新时间： 2024-11-16 12:09:47

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
19页	1024K
描述
600mA Constant On-Time Synchronous Buck Regulator

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LM5017 数据手册

LM5017

www.ti.com

SNVS783D –JANUARY 2012–REVISED MAY 2013

LM5017 100V, 600mA Constant On-Time Synchronous Buck Regulator

Check for Samples: LM5017

FEATURES

PACKAGES

•

Wide 9V to 100V Input Range

Integrated 100V, High and Low Side Switches

No Schottky Required

•

WSON-8

SO PowerPAD-8

DESCRIPTION

Constant On-time Control

The LM5017 is a 100V, 600mA synchronous step-

down regulator with integrated high side and low side

MOSFETs. The constant-on-time (COT) control

scheme employed in the LM5017 requires no loop

compensation, provides excellent transient response,

and enables very low step-down ratios. The on-time

varies inversely with the input voltage resulting in

nearly constant frequency over the input voltage

range. A high voltage startup regulator provides bias

power for internal operation of the IC and for

integrated gate drivers.

No Loop Compensation Required

Ultra-Fast Transient Response

Nearly Constant Operating Frequency

Intelligent Peak Current Limit

Adjustable Output Voltage from 1.225V

Precision 2% Feedback Reference

Frequency Adjustable to 1MHz

Adjustable Undervoltage Lockout (UVLO)

Remote Shutdown

A peak current limit circuit protects against overload

conditions. The undervoltage lockout (UVLO) circuit

allows the input undervoltage threshold and

hysteresis to be independently programmed. Other

protection features include thermal shutdown and

bias supply undervoltage lockout (V_CCUVLO).

Thermal Shutdown

APPLICATIONS

•

Smart Power Meters

Telecommunication Systems

Automotive Electronics

Isolated Bias Supply

The LM5017 is available in WSON-8 and SO

PowerPAD-8 plastic packages.

Typical Application

LM5017

9V-100V

VIN

BST

VOUT

BST

RON

UV2

VCC

FB2

VCC

UVLO

UV1

RTN

FB1

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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LM5017 替代型号

型号	品牌	替代类型	描述	数据表
LM5018	TI	功能相似	100V, 300mA Constant On-Time Synchronous Buck Regulator
LM25011	TI	功能相似	42V 2A Constant On-Time Switching Regulator With Adjustable Current Limit
LM5007	TI	功能相似	High Voltage (80V) Step Down Switching Regulator

与LM5017相关器件

型号	品牌	获取价格	描述	数据表
LM5017_15	TI	获取价格	100-V, 600-mA Constant On-Time Synchronous Buck Regulator
LM5017MR/NOPB	TI	获取价格	100-V, 600-mA Constant On-Time Synchronous Buck Regulator
LM5017MRE/NOPB	TI	获取价格	100-V, 600-mA Constant On-Time Synchronous Buck Regulator
LM5017MRX	TI	获取价格	100V, 600mA Constant On-Time Synchronous Buck Regulator
LM5017MRX/NOPB	TI	获取价格	100-V, 600-mA Constant On-Time Synchronous Buck Regulator
LM5017MRX_NOPB	TI	获取价格	600mA Constant On-Time Synchronous Buck Regulator
LM5017SD/NOPB	TI	获取价格	暂无描述
LM5017SDE/NOPB	TI	获取价格	7.5V-100V 宽输入电压、600mA 恒定导通时间同步降压稳压器 \| NGU \| 8
LM5017SDX/NOPB	TI	获取价格	7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator 8-WSON -40 to 125
LM5018	TI	获取价格	100V, 300mA Constant On-Time Synchronous Buck Regulator

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