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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P25P27P28
标记信息在P25
封装信息在P24P25P26P27P28
技术参数、封装参数在P4P14P24
应用领域在P1P31
电气规格在P4P5P14P15
导航目录
LM5017MRX/NOPB数据手册
Page:
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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
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LM5017
SNVS783H –JANUARY 2012–REVISED DECEMBER 2014
LM5017 100-V, 600-mA Constant On-Time Synchronous Buck Regulator
1 Features 3 Description
The LM5017 is a 100-V, 600-mA synchronous step-
1
• Wide 7.5-V to 100-V Input Range
down regulator with integrated high side and low side
• Integrated 100-V High-Side,
MOSFETs. The constant on-time (COT) control
and Low-Side Switches
scheme employed in the LM5017 requires no loop
• No Schottky Required
compensation, provides excellent transient response,
and enables very high step-down ratios. The on-time
• Constant On-Time Control
varies inversely with the input voltage resulting in
• No Loop Compensation Required
nearly constant frequency over the input voltage
• Ultra-Fast Transient Response
range. A high voltage startup regulator provides bias
power for internal operation of the IC and for
• Nearly Constant Operating Frequency
integrated gate drivers.
• Intelligent Peak Current Limit
A peak current limit circuit protects against overload
• Adjustable Output Voltage From 1.225 V
conditions. The undervoltage lockout (UVLO) circuit
• Precision 2% Feedback Reference
allows the input undervoltage threshold and
• Frequency Adjustable to 1 MHz
hysteresis to be independently programmed. Other
protection features include thermal shutdown and
• Adjustable Undervoltage Lockout (UVLO)
bias supply undervoltage lockout (V
CC
UVLO).
• Remote Shutdown
The LM5017 device is available in WSON-8 and
• Thermal Shutdown
HSOP PowerPAD-8 plastic packages.
• Packages:
– WSON-8
Device Information
(1)
– SO PowerPAD™-8
PART NUMBER PACKAGE BODY SIZE (NOM)
SO PowerPAD (8) 4.89 mm × 3.90 mm
LM5017
2 Applications
WSON (8) 4.00 mm × 4.00 mm
• Smart Power Meters
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
• Telecommunication Systems
• Automotive Electronics
• Isolated Bias Supply
Typical Application
1
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.
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