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參數(shù)資料
| 型號： | LM5000SDX-6EP |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High Voltage Switch Mode Regulator |
| 中文描述： | 2.7 A SWITCHING REGULATOR, 1545 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | PLASTIC, LLP-16 |
| 文件頁數(shù)： | 5/18頁 |
| 文件大?。?/td> | 438K |
| 代理商： | LM5000SDX-6EP |
Electrical Characteristics
(Continued)
Specifications in standard type face are for T
= 25C and those with
boldface type
apply over the full
Operating Tempera-
ture Range
(T
J
= 40C to +125C) Unless otherwise specified. V
IN
= 12V and I
L
= 0A, unless otherwise specified.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 8)
150
45
Max
(Note 7)
Units
θ
JA
Thermal Resistance
TSSOP, Package only
LLP, Package only
C/W
Note 4:
Absolute maximum ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions for which the device is intended to
be functional, but device parameter specifications may not be guaranteed. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 5:
The maximum allowable power dissipation is a function of the maximum junction temperature, T
J
(MAX), the junction-to-ambient thermal resistance,
θ
JA
,
and the ambient temperature, T
A
. See the Electrical Characteristics table for the thermal resistance of various layouts. The maximum allowable power dissipation
at any ambient temperature is calculated using: P
D
(MAX) = (T
J(MAX)
T
A
)/
θ
JA
. Exceeding the maximum allowable power dissipation will cause excessive die
temperature, and the regulator will go into thermal shutdown.
Note 6:
The human body model is a 100 pF capacitor discharged through a 1.5k
resistor into each pin. The machine model is a 200pF capacitor discharged
directly into each pin.
Note 7:
All limits guaranteed at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are 100%
production tested. All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to
calculate Average Outgoing Quality Level (AOQL).
Note 8:
Typical numbers are at 25C and represent the most likely norm.
Note 9:
Bias current flows into FB pin.
Note 10:
Supply voltage, bias current product will result in aditional device power dissipation. This power may be significant. The thermal dissipation design should
take this into account.
L
www.national.com
5
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