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參數(shù)資料
| 型號(hào)： | LM3670 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | RECTIFIER STANDARD SINGLE 1A 100V 100 30A-ifsm 5uA-ir 1V-vf A405 5K/REEL-13 |
| 中文描述： | 微型降壓型DC - DC轉(zhuǎn)換器的超低電壓電路 |
| 文件頁(yè)數(shù)： | 4/17頁(yè) |
| 文件大?。?/td> | 997K |
| 代理商： | LM3670 |
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Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN
Pin: Voltage to GND
EN Pin: Voltage to GND
FB, SW Pin:
0.2V to 6.0V
0.2V to 6.0V
(GND0.2V) to
(V
IN
+ 0.2V)
45C to +125C
45C to +150C
Junction Temperature (T
J-MAX
)
Storage Temperature Range
Maximum Lead Temperature
(Soldering, 10 sec.)
260C
ESD Rating (Note 3)
Human Body Model:
VIN,SW,FB,GND
EN
Machine Model:
2.0kV
500V
200V
Operating Ratings
(Notes 1, 2)
Input Voltage Range
Recommended Load Current
Junction Temperature (T
J
) Range
Ambient Temperature (T
A
) Range
2.5V to 5.5V
0A to 350 mA
40C to +125C
40C to +85C
Thermal Properties
Junction-to-Ambient
Thermal Resistance (
θ
JA
)
(SOT23-5)
250C/W
Electrical Characteristics
the full operating junction temperature range (40C
≤
T
J
≤
+125C). Unless otherwise noted V
IN
= 3.6V, V
OUT
= 1.8V,
I
O
=150mA, EN=V
IN
Limits in standard typeface are for T
J
= 25C. Limits in
boldface
type apply over
Symbol
V
IN
V
OUT
Parameter
Input Voltage Range
Fixed Output Voltage
Condition
Min
2.5
-1.5
Typ
Max
5.5
+3.0
Units
V
%
2.5V
≤
V
IN
≤
5.5V
I
O
= 10 mA
2.5V
≤
V
IN
≤
5.5V
0 mA
≤
I
O
≤
350 mA
2.5V
≤
V
IN
≤
5.5V
I
O
= 10 mA
2.5V
≤
V
IN
≤
5.5V
0 mA
≤
I
O
≤
350 mA
2.5V
≤
V
IN
≤
5.5V
I
O
= 10 mA
150 mA
≤
I
O
≤
350 mA
4.5
+3.0
%
Adjustable Output Voltage
-1.0
+2.5
%
-4.0
+2.5
%
Line Regulation
0.26
%/V
Load Regulation
Internal Reference Voltage
Shutdown Supply Current
DC Bias Current into V
IN
0.0014
0.5
0.1
15
%/mA
V
μA
μA
V
REF
I
Q_SHDN
I
Q_PFM
T
A
=85
o
C
No load, device is not switching
(V
OUT
forced higher than
programmed output voltage)
1
30
V
UVLO
Minimum V
IN
below which
V
OUT
will be disabled
Pin-Pin Resistance for PFET
Pin-Pin Resistance for NFET
P Channel Leakage Current
N Channel Leakage Current
Switch Peak Current Limit
Efficiency
(V
IN
= 3.6V, V
OUT
= 1.8V)
2.4
V
R
DSON (P)
R
DSON (N)
I
LKG (P)
I
LKG (N)
I
LIM
η
V
IN
=V
GS
=3.6V
V
IN
=V
GS
=3.6V
V
DS
=5.5V
V
DS
=5.5V
360
250
0.1
0.1
620
91
94
94
94
92
90
690
660
1
1.5
750
m
m
μA
μA
mA
400
I
LOAD
= 1 mA
I
LOAD
= 10 mA
I
LOAD
= 100 mA
I
LOAD
= 200 mA
I
LOAD
= 300 mA
I
LOAD
= 350 mA
%
L
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4
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