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參數資料
| 型號： | LM5007MMX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | High Voltage (80V) Step Down Switching Regulator |
| 中文描述： | 0.9 A SWITCHING REGULATOR, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 230K |
| 代理商： | LM5007MMX |
LM5007
High Voltage (80V) Step Down Switching Regulator
General Description
The LM5007 Step Down Switching Regulator features all of
the functions needed to implement low cost, efficient, Buck
bias regulators. This high voltage regulator contains an 80 V,
0.7A N-Channel Buck Switch. The device is easy to apply
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 with load and input voltage variations. The
hysteretic control requires no control loop compensation,
while providing very fast load transient response. An intelli-
gent current limit is implemented in the LM5007 with forced
off time that is inversely proportional to V
OUT
. This current
limiting scheme reduces load current foldback. Additional
protection features include: Thermal Shutdown, Vcc under-
voltage lockout, gate drive undervoltage lockout, and Max
Duty Cycle limiter.
Features
n
Integrated 80V, 0.7A N-Channel Buck Switch
n
Internal HV Vcc Regulator
n
No Control Loop Compensation Required
n
Ultra-Fast Transient Response
n
On Time Varies Inversely with Line Voltage
n
Operating Frequency Nearly Constant with Varying Line
Voltage
n
Adjustable Output Voltage
n
Highly Efficient Operation
n
Precision Reference
n
Low Bias Current
n
Intelligent Current Limit Protection
n
Thermal Shutdown
n
External Shutdown Control
Typical Applications
n
Non-Isolated Buck Regulator
n
Secondary High Voltage Post Regulator
n
+42V Automotive Systems
Package
n
MSOP - 8
n
LLP - 8 (4mm x 4mm)
Connection Diagram
20078302
8-Lead MSOP, LLP
Ordering Information
Order Number
LM5007MM
LM5007MMX
LM5007SD
LM5007SDX
Package Type
MSOP-8
MSOP-8
LLP-8
LLP-8
NSC Package Drawing
MUA08A
MUA08A
SDC08A
SDC08A
Supplied As
1000 Units on Tape and Reel
3500 Units on Tape and Reel
Available Soon
Available Soon
January 2004
L
2004 National Semiconductor Corporation
DS200783
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LM5007SD | High Voltage (80V) Step Down Switching Regulator |
| LM5007SDX | High Voltage (80V) Step Down Switching Regulator |
| LM5008 | High Voltage (100V) Step Down Switching Regulator |
| LM5008MM | High Voltage (100V) Step Down Switching Regulator |
| LM5008SD | High Voltage (100V) Step Down Switching Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM5007MMX/NOPB | 功能描述:直流/直流開關轉換器 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 |
| LM5007MMXNOPB | 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 9V to 75V 8-Pin MSOP T/R |
| LM5007SD | 功能描述:直流/直流開關轉換器 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 |
| LM5007SD/NOPB | 功能描述:直流/直流開關轉換器 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 |
| LM5007SD/NOPB | 制造商:Texas Instruments 功能描述:IC, DC/DC CONVERTER |
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