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參數(shù)資料
| 型號(hào)： | LM2599T-ADJ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator, with Features |
| 中文描述： | 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, PZFM7 |
| 封裝： | TO-220, 7 PIN |
| 文件頁數(shù)： | 3/31頁 |
| 文件大?。?/td> | 812K |
| 代理商： | LM2599T-ADJ |
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LM2599-12
Electrical Characteristics
Specifications with standard type face are for T
J
= 25C, and those with
boldface type
apply over
full Operating Tempera-
ture Range.
Symbol
Parameter
Conditions
LM2599-12
Units
(Limits)
Typ
Limit
(Note 5)
(Note 4)
SYSTEM PARAMETERS
(Note 6) Test Circuit Figure 1
V
OUT
Output Voltage
15V
≤
V
IN
≤
40V, 0.2A
≤
I
LOAD
≤
3A
12
V
11.52/
11.40
12.48/
12.60
V(min)
V(max)
%
η
Efficiency
V
IN
= 25V, I
LOAD
= 3A
90
LM2599-ADJ
Electrical Characteristics
Specifications with standard type face are for T
J
= 25C, and those with
boldface type
apply over
full Operating Temperature
Range.
Symbol
Parameter
Conditions
LM2599-ADJ
Units
(Limits)
Typ
Limit
(Note 5)
(Note 4)
SYSTEM PARAMETERS
(Note 6) Test Circuit Figure 1
V
FB
Feedback Voltage
4.5V
≤
V
IN
≤
40V, 0.2A
≤
I
LOAD
≤
3A
V
OUT
programmed for 3V. Circuit of Figure 1
1.230
V
1.193/
1.180
1.267/
1.280
V(min)
V(max)
%
η
Efficiency
V
IN
= 12V, V
OUT
= 3V, I
LOAD
= 3A
73
All Output Voltage Versions
Electrical Characteristics
Specifications with standard type face are for T
= 25C, and those with
boldface type
apply over
full Operating Tempera-
ture Range
. Unless otherwise specified, V
IN
= 12V for the 3.3V, 5V, and Adjustable version and V
IN
= 24V for the 12V ver-
sion. I
LOAD
= 500 mA
Symbol
Parameter
Conditions
LM2599-XX
Typ
(Note
4)
Units
(Limits)
Limit
(Note 5)
DEVICE PARAMETERS
I
b
Feedback Bias Current
Adjustable Version Only, V
FB
= 1.3V
10
nA
50/
100
nA (max)
kHz
kHz(min)
kHz(max)
V
V(max)
%
f
O
Oscillator Frequency
(Note 7)
150
127/
110
173/
173
V
SAT
Saturation Voltage
I
OUT
= 3A (Note 8) (Note 9)
1.16
1.4/
1.5
DC
Max Duty Cycle (ON)
Min Duty Cycle (OFF)
Current Limit
(Note 9)
(Note 10)
Peak Current, (Note 8) (Note 9)
100
0
4.5
I
CL
A
3.6/
3.4
6.9/
7.5
50
A(min)
A(max)
μA(max)
mA
mA(max)
mA
mA(max)
I
L
Output Leakage Current
(Note 8) (Note 10) (Note 11)
Output = 0V
Output = 1V
2
30
I
Q
Operating Quiescent
Current
SD /SS Pin Open (Note 10)
5
10
L
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3
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|---|---|
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