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參數資料
| 型號： | LM5007MMEP/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, PDSO8 |
| 封裝： | PLASTIC, MSOP-8 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 231K |
| 代理商： | LM5007MMEP/NOPB |
LM5007EP
Enhanced Plastic High Voltage (80V) Step Down
Switching Regulator
General Description
The LM5007EP 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 propor-
tional to V
IN. This feature allows the operating frequency to
remain relatively constant with load and input voltage varia-
tions. The hysteretic control requires no control loop com-
pensation, while providing very fast load transient response.
An intelligent current limit is implemented in the LM5007EP
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 undervoltage lockout, gate drive undervoltage lockout,
and Max Duty Cycle limiter.
ENHANCED PLASTIC
Extended Temperature Performance of 40C to + 125C
Baseline Control - Single Fab & Assembly Site
Process Change Notification (PCN)
Qualification & Reliability Data
Solder (PbSn) Lead Finish is standard
Enhanced Diminishing Manufacturing Sources (DMS)
Support
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
Selected Military Applications
n
Selected Avionics Applications
Ordering Information
PART NUMBER
VID PART NUMBER
NS PACKAGE NUMBER (Note 3)
LM5007MMEP
V62/04633-01
MUA08A
(Notes 1, 2)
TBD
Note 1: For the following (Enhanced Plastic) versions, check for availability: LM5007MMXEP, LM5007SDEP, LM5007SDXEP
Note 2: FOR ADDITIONAL ORDERING AND PRODUCT INFORMATION, PLEASE VISIT THE ENHANCED PLASTIC WEB SITE AT: www.national.com/
mil
Note 3: Refer to package details under Physical Dimensions
March 2004
LM5007EP
Enhanced
Plastic
High
V
oltage
(80V)
Step
Down
Switching
Regulator
2004 National Semiconductor Corporation
DS200939
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM5007MMX | 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 |
| 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 |
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