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參數資料
| 型號： | LM5008 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | High Voltage (100V) Step Down Switching Regulator |
| 中文描述： | 高電壓（100V的）降壓開關穩壓器 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 278K |
| 代理商： | LM5008 |
LM5008
High Voltage (100V) Step Down Switching Regulator
General Description
The LM5008 Step Down Switching Regulator features all of
the functions needed to implement a low cost, efficient, Buck
bias regulator. This high voltage regulator contains an 100 V
N-Channel Buck Switch. The device is easy to implement
and is provided in the MSOP-8 and the thermally enhanced
LLP-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. The hysteretic control requires no loop
compensation. An intelligent current limit is implemented
with forced OFF time, which is inversely proportional to Vout.
This scheme ensures short circuit protection while providing
minimum foldback. Other protection features include: Ther-
mal Shutdown, V
CC
under-voltage lockout, Gate drive under-
voltage lockout, and Max Duty Cycle limiter
Features
n
Integrated 100V, N-Channel buck switch
n
Internal V
CC
regulator
n
No loop compensation required
n
Ultra-Fast transient response
n
On time varies inversely with line voltage
n
Operating frequency remains constant with varying line
voltage and load current
n
Adjustable output voltage
n
Highly efficient operation
n
Precision internal reference
n
Low bias current
n
Intelligent current limit protection
n
Thermal shutdown
Typical Applications
n
Non-Isolated Telecommunication Buck Regulator
n
Secondary High Voltage Post Regulator
n
+42V Automotive Systems
Package
n
MSOP - 8
n
LLP - 8 (4mm x 4mm)
Connection Diagram
20097902
8-Lead MSOP, LLP
Ordering Information
Order Number
LM5008MM
LM5008SD
Package Type
MSOP-8
LLP-8
NSC Package Drawing
MUA08A
SDC08A
Supplied As
1000 Units on Tape and Reel
1000 Units on Tape and Reel
October 2004
L
2004 National Semiconductor Corporation
DS200979
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LM5008MM | High Voltage (100V) Step Down Switching Regulator |
| LM5008SD | High Voltage (100V) Step Down Switching Regulator |
| LM6118 | Fast Settling Dual Operational Amplifiers |
| LM6218AN | Fast Settling Dual Operational Amplifiers |
| LM6218N | Fast Settling Dual Operational Amplifiers |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM5008_09 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Voltage (100V) Step Down Switching Regulator |
| LM5008A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:100V, 350 mA Constant On-Time Buck Switching Regulator |
| LM5008AEVAL/NOPB | 功能描述:電源管理IC開發工具 LM5008A EVAL BOARD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LM5008AMM | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:100V, 350 mA Constant On-Time Buck Switching Regulator |
| LM5008AMM/NOPB | 功能描述:直流/直流開關轉換器 100V,350Ma Buck Reg RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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