Datasheet 搜索 > DC/DC转换器 > TI（德州仪器） > LM34910CSD/NOPB 数据手册 > LM34910CSD/NOPB 数据手册 1/19 页
￥ 15.292
LM34910CSD/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:
WDFN-10
描述:
Constant On-Time (COT) Step-Down DC/DC Converters (Integrated Switch), Texas Instruments### 直流/直流开关调节器转换器（集成开关），Texas InstrumentsTexas Instruments 的此系列高度集成的高效开关稳压器包括步升（升压）、步降（降压）、步升/降（增压/降压）和反相类型，为每个直流稳压器应用提供高效的解决方案。
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P2Hot
典型应用电路图在P1P2P6P7P8P11
原理图在P2P6P7P8P11
封装尺寸在P14P16P17
标记信息在P14
封装信息在P14P15P16P17
功能描述在P6
技术参数、封装参数在P3P4
应用领域在P1P10P19
电气规格在P3P4P5
导航目录
LM34910CSD/NOPB数据手册
Page:
of 19 Go
若手册格式错乱，请下载阅览PDF原文件
BST
I
SEN
S
GND
RTN
R
ON
/SD
SS
FB
SW
1
2
3
4
5
10
9
8
7
6
V
CC
V
IN
LM34910C
www.ti.com
SNVS517B –MAY 2007–REVISED MARCH 2013
LM34910C High Voltage (50V, 1.25A) Step Down Switching Regulator
Check for Samples: LM34910C
1
FEATURES
DESCRIPTION
The LM34910C Step Down Switching Regulator
2
• Integrated 55V, N-Channel Buck Switch
features all of the functions needed to implement a
• Integrated Start-Up Regulator
low cost, efficient, buck bias regulator capable of
• Input Voltage Range: 8V to 50V
supplying 1.25A to the load. This buck regulator
contains a 55V N-Channel Buck Switch, and is
• No Loop Compensation Required
available in the thermally enhanced WSON-10
• Ultra-Fast Transient Response
package. The hysteretic regulation scheme requires
• Operating Frequency Remains Constant with
no loop compensation, results in fast load transient
Load Current and Input Voltage
response, and simplifies circuit implementation. The
operating frequency remains constant with line and
• Maximum Duty Cycle Limited During Start-Up
load variations due to the inverse relationship
• Adjustable Output Voltage
between the input voltage and the on-time. The
• Valley Current Limit At 1.25A
current limit detection is set at 1.25A. Additional
features include: VCC under-voltage lockout, thermal
• Precision Internal Reference
shutdown, gate drive under-voltage lockout, and
• Low Bias Current
maximum duty cycle limiter.
• Highly Efficient Operation
• Thermal Shutdown
Package
• WSON-10 (4 mm x 4 mm)
TYPICAL APPLICATIONS
• Exposed Thermal Pad For Improved Heat
Dissipation
• High Efficiency Point-Of-Load (POL) Regulator
• Non-Isolated Telecommunication Buck
Regulator
• Secondary High Voltage Post Regulator
Connection Diagram
10-Lead WSON
1
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.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
