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参数资料
| 型号： | LM2575T-012G |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 稳压器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, SFM5 |
| 封装： | LEAD FREE, CASE 314D-04, TO-220, 5 PIN |
| 文件页数： | 22/28页 |
| 文件大小： | 492K |
| 代理商： | LM2575T-012G |
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LM2575, NCV2575
http://onsemi.com
3
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 and test conditions, see the Electrical Characteristics.)
Rating
Symbol
Value
Unit
Operating Junction Temperature Range
TJ
40 to +125
°C
Supply Voltage
Vin
40
V
ELECTRICAL CHARACTERISTICS (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 = 200 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.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (Vin = 12 V, ILoad = 0.2 A, TJ = 25°C)
Vout
3.234
3.3
3.366
V
Output Voltage (4.75 V ≤ Vin ≤ 40 V, 0.2 A ≤ ILoad ≤ 1.0 A)
Vout
V
TJ = 25°C
3.168
3.3
3.432
TJ = 40 to +125°C
3.135
3.465
Efficiency (Vin = 12 V, ILoad = 1.0 A)
η
75
%
Output Voltage (Vin = 12 V, ILoad = 0.2 A, TJ = 25°C)
Vout
4.9
5.0
5.1
V
Output Voltage (8.0 V ≤ Vin ≤ 40 V, 0.2 A ≤ ILoad ≤ 1.0 A)
Vout
V
TJ = 25°C
4.8
5.0
5.2
TJ = 40 to +125°C
4.75
5.25
Efficiency (Vin = 12 V, ILoad = 1.0 A)
η
77
%
Output Voltage (Vin = 25 V, ILoad = 0.2 A, TJ = 25°C)
Vout
11.76
12
12.24
V
Output Voltage (15 V ≤ Vin ≤ 40 V, 0.2 A ≤ ILoad ≤ 1.0 A)
Vout
V
TJ = 25°C
11.52
12
12.48
TJ = 40 to +125°C
11.4
12.6
Efficiency (Vin = 15V, ILoad = 1.0 A)
η
88
%
Output Voltage (Vin = 30 V, ILoad = 0.2 A, TJ = 25°C)
Vout
14.7
15
15.3
V
Output Voltage (18 V ≤ Vin ≤ 40 V, 0.2 A ≤ ILoad ≤ 1.0 A)
Vout
V
TJ = 25°C
14.4
15
15.6
TJ = 40 to +125°C
14.25
15.75
Efficiency (Vin = 18 V, ILoad = 1.0 A)
η
88
%
Feedback Voltage (Vin = 12 V, ILoad = 0.2 A, Vout = 5.0 V, TJ = 25°C)
VFB
1.217
1.23
1.243
V
Feedback Voltage (8.0 V ≤ Vin ≤ 40 V, 0.2 A ≤ ILoad ≤ 1.0 A, Vout = 5.0 V)
VFB
V
TJ = 25°C
1.193
1.23
1.267
TJ = 40 to +125°C
1.18
1.28
Efficiency (Vin = 12 V, ILoad = 1.0 A, Vout = 5.0 V)
η
77
%
1. External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance.
When the LM2575 is used as shown in the Figure 14 test circuit, system performance will be as shown in system parameters section.
2. Tested junction temperature range for the LM2575 and the NCV2575:
Tlow = 40°C
Thigh = +125°C
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