LM2576HVT-3.3 데이터 시트보기 (PDF) - HTC Korea
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LM2576HVT-3.3 Datasheet PDF : 7 Pages
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3A, 52kHz, Step-down Switching Regulator
LM2576HV
ELECTRICAL CHARACTERISTICS
Specifications with standard type face are for TJ = 25℃ and those with boldface type apply over full operating temperature
range. Unless otherwise specified, VIN =12V for the 3.3V, 5V, and Adjustable version, VIN =25V for the 12V version, and
VIN =30V for the 15V version, ILOAD =500mA.
PARAMETER
SYMBOL
TEST CONDITION (Note 2)
MIN.
TYP.
MAX. UNIT
SYSTEM PARAMETERS (Note 3)
Feedback Voltage
VFB
Output Voltage
VO
Efficiency
DEVICE PARAMETERS
Feedback Bias
Current
Ib
Oscillator Frequency
fO
LM2576HV-ADJ
LM2576HV-3.3
LM2576HV-5.0
LM2576HV-12
LM2576HV-15
LM2576HV-ADJ
LM2576HV-3.3
LM2576HV-5.0
LM2576HV-12
LM2576HV-15
VIN =12V, ILOAD =0.5A
0.5A ≤ ILOAD ≤ 3A ,
8V ≤ VIN ≤ 55V
VIN =12V, ILOAD =0.5A
0.5A ≤ ILOAD ≤ 3A ,
6V ≤ VIN ≤ 55V
VIN =12V, ILOAD =0.5A
0.5A ≤ ILOAD ≤ 3A ,
8V ≤ VIN ≤ 55V
VIN =25V, ILOAD =0.5A
0.5A ≤ ILOAD ≤ 3A ,
15V ≤ VIN ≤ 55V
VIN =25V, ILOAD =0.5A
0.5A ≤ ILOAD ≤ 3A ,
18V ≤ VIN ≤ 55V
VIN =12V, ILOAD =3A,
Vo = 5V
VIN =12V, ILOAD =3A
VIN =12V, ILOAD =3A
VIN =15V, ILOAD =3A
VIN =18V, ILOAD =3A
VO = 5V (Adjustable Version Only)
(Note 8)
Saturation Voltage
Max Duty Cycle(ON)
VSAT
DC
IO = 3A (Note 4)
(Note 5)
Current Limit
ICL
(Note 4, 8)
1.217
1.230
1.243
V
1.193
1.180
1.230
1.273
1.286
V
3.234
3.300
3.366
V
3.168
3.135
3.300
3.450
3.482
V
4.900
5.000
5.100
V
4.800
4.750
5.000
5.225
5.275
V
11.76
12.00
12.24
V
11.52
11.40
12.00
12.54
12.66
V
14.70
15.00
15.30
V
14.40
14.25
15.00
15.68
15.83
V
77
%
75
%
77
%
88
%
88
%
50
100
500
nA
47
42
52
58
63
kHZ
1.4
1.55
1.70
V
93
98
%
4.2
3.5
5.8
6.9
7.5
A
Feb. 2014 – R1.0
-4-
HTC
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