參數(shù)資料
型號： LM5008SD/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 0.61 A SWITCHING REGULATOR, DSO8
封裝： 4 X 4 MM, LLP-8
文件頁數(shù)： 1/16頁
文件大?。?/td> 359K
代理商： LM5008SD/NOPB
February 5, 2008
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 compensa-
tion. An intelligent current limit is implemented with forced
OFF time, which is inversely proportional to Vout. This
scheme ensures short circuit protection while providing min-
imum foldback. Other protection features include: Thermal
Shutdown, V
CC under-voltage lockout, Gate drive under-volt-
age lockout, and Max Duty Cycle limiter
Features
■ Integrated 100V, N-Channel buck switch
■ Internal V
CC regulator
■ No loop compensation required
■ Ultra-Fast transient response
■ On time varies inversely with line voltage
■ Operating frequency remains constant with varying line
voltage and load current
■ Adjustable output voltage
■ Highly efficient operation
■ Precision internal reference
■ Low bias current
■ Intelligent current limit protection
■ Thermal shutdown
Typical Applications
■ Non-Isolated Telecommunication Buck Regulator
■ Secondary High Voltage Post Regulator
■ +42V Automotive Systems
Package
■ MSOP - 8
■ LLP - 8 (4mm x 4mm)
Connection Diagram
20097902
8-Lead MSOP, LLP
Ordering Information
Order Number
Package Type
NSC Package Drawing
Supplied As
LM5008MM
MSOP-8
MUA08A
1000 Units on Tape and Reel
LM5008MMX
3500 Units on Tape and Reel
LM5008SD
LLP-8
SDC08A
1000 Units on Tape and Reel
LM5008SDX
4500 Units on Tape and Reel
LM5008SDC
SDC08B
1000 Units on Tape and Reel
LM5008SDCX
4500 Units on Tape and Reel
2008 National Semiconductor Corporation
200979
www.national.com
LM5008
High
Voltage
(100V)
Step
Down
Switching
Regulator
相關(guān)PDF資料
PDF描述
LM5008SDEP 0.61 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
LM5008SDX 0.61 A SWITCHING REGULATOR, DSO8
LM5027AMH SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
LM5027AMHX SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
LM5035AMH-1 SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM5008SDX 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM5008SDX/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM5009 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 mA, 100V Step-Down Switching Regulator
LM5009_08 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 mA, 100V Step-Down Switching Regulator
LM5009A 制造商:NSC 制造商全稱:National Semiconductor 功能描述:100V, 150 mA Constant On-Time Buck Switching Regulator
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