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參數(shù)資料
| 型號： | LM5008SD |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High Voltage (100V) Step Down Switching Regulator |
| 中文描述： | 0.61 A SWITCHING REGULATOR, DSO8 |
| 封裝： | 4 X 4 MM, LLP-8 |
| 文件頁數(shù)： | 5/15頁 |
| 文件大?。?/td> | 278K |
| 代理商： | LM5008SD |
Electrical Characteristics
(Continued)
Specifications with standard typeface are for T
= 25C, and those with
boldface
type apply over full
Operating Junction
Temperature range
. V
IN
= 48V, unless otherwise stated (Note 3).
Symbol
Parameter
Conditions
Minimum Off Time
Minimum Off Timer
FB = 0V
Regulation and OV Comparators
FB Reference Threshold
Internal reference
Trip point for switch ON
FB Over-Voltage Threshold
Trip point for switch OFF
FB Bias Current
Thermal Shutdown
Tsd
Thermal Shutdown Temp.
Thermal Shutdown Hysteresis
Thermal Resistance
θ
JA
Junction to Ambient
MUA Package
SDC Package
Min
Typ
Max
Units
300
ns
2.445
2.5
2.550
V
2.875
100
V
nA
165
25
C
C
200
40
C/W
C/W
Note 1:
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device
is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2:
For detailed information on soldering plastic MSOP and LLP packages, refer to the Packaging Data Book available from National Semiconductor
Corporation.
Note 3:
All limits are guaranteed.All electrical characteristics having room temperature limits are tested during production with T
= T
= 25C.All hot and cold limits
are guaranteed by correlating the electrical characteristics to process and temperature variations and applying statistical process control.
Note 4:
The V
CC
output is intended as a self bias for the internal gate drive power and control circuits. Device thermal limitations limit external loading.
Note 5:
The human body model is a 100pF capacitor discharged through a 1.5k
resistor into each pin.
Note 6:
For devices procured in the LLP-8 package the Rds(on) limits are guaranteed by design characterization data only.
L
www.national.com
5
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM5008SD/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 |
| LM5008SDC | 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 |
| LM5008SDC/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 |
| LM5008SDCX | 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 |
| LM5008SDCX/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 |
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