參數(shù)資料
型號(hào)： LM2575T-012G
廠商： ON SEMICONDUCTOR
元件分類(lèi)： 穩(wěn)壓器
英文描述： 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, SFM5
封裝： LEAD FREE, CASE 314D-04, TO-220, 5 PIN
文件頁(yè)數(shù)： 22/28頁(yè)
文件大小： 492K
代理商： LM2575T-012G
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
SYSTEM PARAMETERS ([Note 1] Test Circuit Figure 14)
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
LM25753.3 (Note 1 Test Circuit Figure 14)
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
%
LM25755 ([Note 1] Test Circuit Figure 14)
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
%
LM257512 (Note 1 Test Circuit Figure 14)
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
%
LM257515 (Note 1 Test Circuit Figure 14)
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
%
LM2575 ADJUSTABLE VERSION (Note 1 Test Circuit Figure 14)
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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