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參數資料
| 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： | 2/8頁 |
| 文件大?。?/td> | 186K |
| 代理商： | LM2567M |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage
40V
Output Switch Voltage
50V
Output Switch Current
6.0A
Power Dissipation
Internally Limited
b
65
§
C to
a
150
§
C
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
260
§
C
150
§
C
2 kV
Maximum Junction Temperature
Minimum ESD Rating (C
e
100 pF, R
e
1.5 k
X
)
Operating Ratings
Supply Voltage
3.5V
s
V
IN
s
35V
0V
s
V
SW
s
45V
I
SW
s
3.0A
0
§
C
s
T
J
s
a
125
§
C
0
§
C
s
T
A
s
a
70
§
C
Output Switch Voltage
Output Switch Current
Junction Temperature Range
Ambient Temperature Range
Electrical Characteristics
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
GENERAL DEVICE PARAMETERS
I
S
Input Supply Current
V
FB
e
1.5V (Switch Off)
7.5
10.0
14.0
mA
mA
I
SW
e
2.0A
V
COMP
e
2.0V (Max. Duty Cycle)
20
50
85
mA
mA
V
UV
Input Supply
Undervoltage Lockout
I
SW
e
100 mA
V
COMP
e
1.2V
2.90
2.60
2.55
3.10
3.15
V
V
f
O
Oscillator Frequency
Measured at Switch Pin
I
SW
e
100 mA
52
48
42
56
62
kHz
kHz
V
REF
Reference Voltage
Measured at Feedback Pin
V
IN
e
3.5V to 35V
V
COMP
e
1.0V
1.230
1.214
1.206
1.246
1.254
V
V
D
V
REF
/
D
V
IN
Reference Voltage
Line Regulation
V
IN
e
3.5V to 35V
0.5
mV
i
JA
Thermal Resistance
Junction-to-Ambient (Note 3)
100
§
C/W
ERROR AMPLIFIER PARAMETERS
I
B
Error Amp
Input Bias Current
V
COMP
e
1.0V
100
300
800
nA
nA
G
M
Error Amp
Transconductance
I
COMP
e b
30
m
A to
a
30
m
A
V
COMP
e
1.0V
3700
2400
1600
4800
5800
m
mho
m
mho
A
V
Error Amp
Voltage Gain
V
COMP
e
1.1V to 1.6V
R
COMP
e
1.0 M
X
(Note 4)
800
500
250
V/V
V/V
Error Amp
Output Swing
Upper Limit
V
FB
e
1.0V
2.4
2.2
2.0
V
V
Lower Limit
V
FB
e
1.5V
0.3
0.40
0.55
V
V
Error Amp
Output Current
V
FB
e
1.0V to 1.5V
V
COMP
e
1.0V
g
200
g
130
g
90
g
300
g
400
m
A
m
A
I
SS
Soft Start Current
V
FB
e
1 0V
V
COMP
e
0V
5.0
2.5
1.5
7.5
9.5
m
A
m
A
D
Maximum Duty Cycle
V
COMP
e
1.2V
ISW
e
100 mA
95
93
88
%
%
2
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相關代理商/技術參數 |
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| LM2574 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:0.5 A, Adjustable Output Voltage, Step−Down Switching Regulator |
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