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參數(shù)資料
| 型號： | LM2567M |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | LAN DC/DC Converter |
| 中文描述： | 6 A SWITCHING REGULATOR, 52 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | 0.300 INCH, SOP-24 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 186K |
| 代理商： | LM2567M |
Electrical Characteristics
(Continued)
Specifications with standard type face are for T
J
e
25
§
C, and those in
bold typeface
apply over full
Operating Temperature
Range.
Unless otherwise specified, V
IN
e
5V, V
FB
e
V
REF
, and I
SWITCH
e
0. (Note 2)
Symbol
Parameter
Conditions
Typ
Min
Max
Units
SWITCH PARAMETERS
D
I
SWITCH
/
D
V
COMP
Switch
Transconductance
12.5
A/V
I
L
Switch Leakage
Current
Switch Off (V
FB
e
1.5V)
V
SW
e
50V
10
300
600
m
A
m
A
V
SAT
Switch Saturation
Voltage
I
SW
e
2.0A
V
COMP
e
1.2V
0.5
0.75
1.0
V
V
I
CL
NPN Switch
Current Limit
V
COMP
e
2.0V
4.3
3.7
3.0
5.3
6.0
A
A
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions the device is intended to
be functional, but device parameter specifications may not be guaranteed under these conditions. For guaranteed specifications and test conditions, see the
Electrical Characteristics.
Note 2:
All limits guaranteed at room temperature (standard typeface) and at temperature extremes (
boldface type
). All room temperature limits are 100%
production tested. All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods.
Note 3:
Junction-to-Ambient thermal resistanoe with approximately 1 square inch of p.c. board copper surrounding the leads. Additional copper area will lower
thermal resistance further.
Note 4:
A 1.0 M
X
resistor is connected to the compensation pin (which is the error amplifier’s output) to ensure accuracy in measuring A
VOL
. In actual applications,
this pin’s load resistance should be
t
10 M
X
, resulting in A
VOL
that is typically twice the guaranteed minimum limit.
3
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