LM2576BM 데이터 시트보기 (PDF) - Tiger Electronic
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LM2576BM Datasheet PDF : 9 Pages
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LM2576BM
ELECTRICAL CHARACTERISTICS
(Specifications with standard type face are for TJ = 25°C,)
Parameter
Symbol
Condition
Min.
*2
Device Parameters
Feedback
current
bias
Ib
Oscillator
frequency
fO
Adjustable version
only, VOUT=5V
*8
47
VSAT saturation voltage V S A T
IOUT=3A *4
Typ.
50
52
1.4
Max.
100
58
1.8
Unit
nA
kHz
V
Max. duty cycle(ON)
DC
*5
93
98
%
Current limit
ICL
*4,8
4.2
5.8
6.9
A
Output
current
leakage
IL
Output=0V *6,7
Output=-1VV *10
2.3
mA
7.5
30
mA
Quiescent current
Standby quiescent
current
IQ
ISTBY
*6
ON/OFF PIN=5V
5
10
mA
50
200
µA
ON/OFF Control
ON/OFF pin logic
VIH
input level
VIL
VOUT=0V
2.0
VOUT=nominal output
voltage
V
0.8
V
ON/OFF pin input
IIH
current
IIL
ON/OFF pin=5V(OFF)
ON/OFF pin=0V(ON)
4
30
µA
0.01
10
µA
LM2576BM 3.3V System Parameters *3
Output voltagde
Efficiency
VOUT
η
6V≤VIN≤40V
0.5A≤ILOAD≤3A
3.234 3.3 3.366 V
VIN=12V,ILOAD=3A
73
%
LM2576BM 5.0V System Parameters *3
Output voltagde
Efficiency
VOUT
8V≤VIN≤40V
0.5A≤ILOAD≤3A
4.8
5.0
5.2
V
η
VIN=12V,ILOAD=3A
77
%
LM2576BM 12V System Parameters *3
Output voltagde
Efficiency
VOUT
η
15V≤VIN≤40V
0.5A≤ILOAD≤3A
11.52 12.0 12.48 V
VIN=15V,ILOAD=3A
88
%
LM2576BM ADJ System Parameters *3
Output voltagde
Efficiency
VOUT
η
8V≤VIN≤40V
0.5A≤ILOAD≤3A
1.193 1.230 1.267 V
VOUT=5V
VIN=12V,ILOAD=3A
VOUT=5V
77
%
* 1 Absolute Maximum Ratings indicates limits beyond which damage to the device may
occur. Operating Ratings indicate conditions for which the device is intended to be
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