參數(shù)資料
型號： LM5000SDX-6
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, DSO16
封裝： LLP-16
文件頁數(shù)： 4/18頁
文件大?。?/td> 438K
代理商： LM5000SDX-6
Absolute Maximum Ratings
(Note 4)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN
SW Voltage
FB Voltage
COMP Voltage
All Other Pins
Maximum Junction Temperature
Power Dissipation(Note 5)
Lead Temperature
-0.3V to 40V
-0.3V to 80V
-0.3V to 5V
-0.3V to 3V
-0.3V to 7V
150C
Internally Limited
216C
Infrared (15 sec.)
ESD Susceptibility (Note 6)
Human Body Model
Machine Model
Storage Temperature
235C
2kV
200V
65C to +150C
Operating Conditions
Operating Junction
Temperature Range
(Note 10)
Supply Voltage (Note 10)
40C to +125C
3.1V to 40V
Electrical Characteristics
Specifications in standard type face are for T
J
= 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)
Max
(Note 7)
Units
I
Q
Quiescent Current
FB = 2V (Not Switching)
FS = 0V
FB = 2V (Not Switching)
FS = Open
V
SHDN
= 0V
2.0
2.5
mA
2.1
2.5
mA
18
30
μA
V
A
%/V
V
FB
I
CL
%V
FB
/
V
IN
Feedback Voltage
Switch Current Limit
Feedback Voltage Line
Regulation
FB Pin Bias Current (Note 9)
Output Switch Breakdown
Voltage
1.2330
1.35
1.259
2.0
0.001
1.2840
2.7
0.04
3.1V
≤
V
IN
≤
40V
I
B
BV
55
200
nA
V
T
J
= 25C, I
SW
= 0.1μA
T
J
= -40C to + 125C, I
SW
=
0.5μA
80
76
V
IN
g
m
A
V
D
MAX
Input Voltage Range
Error Amp Transconductance
I = 5μA
Error Amp Voltage Gain
Maximum Duty Cycle
LM5000-3EP
Maximum Duty Cycle
LM5000-6EP
Minimum On Time
Switching Frequency
LM5000-3EP
3.1
150
40
750
V
410
280
90
μmho
V/V
%
FS = 0V
85
FS = 0V
85
90
%
T
MIN
165
300
700
600
1.3
1
0.008
160
0.6
0.6
2.92
2. 77
0.67
11
ns
f
S
FS = 0V
FS = Open
FS = 0V
FS = Open
V
SHDN
= 0V
V
SW
= 80V
I
SW
= 1A
Output High
Output Low
240
550
485
1.055
360
840
715
1.545
-2
5
445
kHz
Switching Frequency
LM5000-6EP
MHz
μA
μA
m
V
V
V
V
V
μA
I
SHDN
I
L
R
DSON
Th
SHDN
Shutdown Pin Current
Switch Leakage Current
Switch R
DSON
SHDN Threshold
0.9
0.3
3.10
2.96
UVLO
On Threshold
Off Threshold
V
COMP
Trip
Softstart Current
2.74
2.60
OVP
I
SS
8
14
L
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