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LM2576 Scheda tecnica(PDF) 3 Page - HTC Korea TAEJIN Technology Co.

Il numero della parte LM2576
Spiegazioni elettronici  3.0A, 52kHz, Step-Down Switching Regulator
Download  14 Pages
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Produttore elettronici  HTC [HTC Korea TAEJIN Technology Co.]
Homepage  http://www.htckorea.co.kr
Logo HTC - HTC Korea TAEJIN Technology Co.

LM2576 Scheda tecnica(HTML) 3 Page - HTC Korea TAEJIN Technology Co.

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3.0A, 52kHz, Step-Down Switching Regulator
LM2576
OPERATING RATINGS(Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed
specifications, see the Electrical Characteristics.)
LM2576-3.3V ([Note 1] Test Circuit Figure 2)
LM2576-5.0V ([Note 1] Test Circuit Figure 2)
LM2576-12V ([Note 1] Test Circuit Figure 2)
LM2576-ADJ ([Note 1] Test Circuit Figure 2)
%
-
1.28
-
HTC
- 3 -
TJ= -40℃ ~ +125℃
1.18
Feedback Voltage(8.0V≤Vin≤40V, 0.5A≤ILOAD≤3.0A, Vout=5.0V)
TJ=25℃
1.193
Efficiency (Vin=12V, ILOAD=3.0A, Vout=5.0V)
η
-77
1.23
1.267
Vout
%
Feedback Voltage (Vin=12V, ILOAD=0.5A, TJ=25℃)
Vout
1.217
1.23
1.243
V
V
-
12.6
Efficiency (Vin=25V, ILOAD=3.0A)
η
-88
-
Vout
V
TJ=25℃
11.52
12
12.48
TJ= -40℃ ~ +125℃
11.4
Output Voltage (15V≤Vin≤40V, 0.5A≤ILOAD≤3.0A
%
Output Voltage (Vin = 25V, ILOAD=0.5A, TJ=25℃)
Vout
11.76
12
12.24
V
-
5.25
Efficiency (Vin=12V, ILOAD=3.0A)
η
-77
-
Vout
V
TJ=25℃
4.8
5.0
5.2
TJ= -40℃ ~ +125℃
4.75
Output Voltage (8.0V≤Vin≤40V, 0.5A≤ILOAD≤3.0A
%
Output Voltage (Vin = 12V, ILOAD=0.5A, TJ=25℃)
Vout
4.9
5.0
5.1
V
-
3.465
Efficiency (Vin=12V, ILOAD=3.0A)
η
-75
-
Vout
V
TJ=25℃
3.168
3.3
3.432
TJ= -40℃ ~ +125℃
3.135
Output Voltage (6.0V≤Vin≤40V, 0.5A≤ILOAD≤3.0A
3.366
V
Characteristics
Symbol
Min
Output Voltage (Vin = 12V, ILOAD=0.5A, TJ=25℃)
Vout
3.234
3.3
TYP
Supply Voltage
Vin
40
Max
V
Unit
Operating Junction Temperature Range
TJ
-40 to +125
Rating
Symbol
Value
Unit
ELECTRICAL CHARACTERISTICS / SYSTEM PARAMETERS ([Note 1] Test Circuit Figure 15)
(Unless otherwise specified, Vin = 12 V for the 3.3 V, 5.0 V, and Adjustable version, Vin = 25 V for
the 12 V version, and Vin = 30 V for the 15 V version. ILoad = 500 mA. For typical values TJ = 25°C,
for min/max values TJ is the operating junction temperature range that applies [Note 2], unless
otherwise noted.)
1. External components such as the catch diode, inductor, input and output capacitors can affect
switching regulator system performance.
When the LM2576 is used as shown in the Figure 15 test circuit, system performance will be as
shown in system parameters section .
2. Tested junction temperature range for the LM2576: Tlow = –40°C Thigh = +125°C


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