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LM5017MRX/NOPB 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
DC/DC转换器
封装:
PowerSOIC-8
描述:
100V输入,600mA恒准时同步降压转换器
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3Hot
典型应用电路图在P1P14
原理图在P8P14P18
封装尺寸在P27P29P30
标记信息在P27
封装信息在P26P27P28P29P30
技术参数、封装参数在P4P14P25
应用领域在P1P33
电气规格在P4P5P14P15
导航目录
LM5017MRX/NOPB数据手册
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若手册格式错乱，请下载阅览PDF原文件
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V
IN
BST
RON
RTN
SW
VCC
FB
VIN
VOUT
R
FB1
R
C
R
UV1
R
ON
C
OUT
C
BST
C
IN
R
FB2
R
UV2
L1
UVLO
+
C
VCC
LM5017
7.5V-100V
1
2
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8
7
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
LM5017
SNVS783I –JANUARY 2012–REVISED OCTOBER 2015
LM5017 100-V, 600-mA Constant On-Time Synchronous Buck Regulator
1
1 Features
1
• Wide 7.5-V to 100-V Input Range
• Integrated 100-V High-Side,
and Low-Side Switches
• No Schottky Required
• Constant On-Time Control
• No Loop Compensation Required
• Ultra-Fast Transient Response
• Nearly Constant Operating Frequency
• Intelligent Peak Current Limit
• Adjustable Output Voltage From 1.225 V
• Precision 2% Feedback Reference
• Frequency Adjustable to 1 MHz
• Adjustable Undervoltage Lockout (UVLO)
• Remote Shutdown
• Thermal Shutdown
• Packages:
– WSON-8
– SO PowerPAD™-8
• Create a Custom Design Using the LM5017 with
the WEBENCH Power Designer
2 Applications
• Smart Power Meters
• Telecommunication Systems
• Automotive Electronics
• Isolated Bias Supply
3 Description
The LM5017 is a 100-V, 600-mA 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 high 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.
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
CC
UVLO).
The LM5017 device is available in WSON-8 and
HSOP PowerPAD-8 plastic packages.
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
LM5017
SO PowerPAD (8) 4.89 mm × 3.90 mm
WSON (8) 4.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
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