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参数资料
| 型号： | LM2576 |
| 厂商： | ON SEMICONDUCTOR |
| 英文描述： | 3.0 A, 15 V, Step-Down Switching Regulator(3.0A,15V,降压型开关稳压器) |
| 中文描述： | 3.0甲，15 V的，降压型开关稳压器（3.0A的，15V的，降压型开关稳压器） |
| 文件页数： | 22/28页 |
| 文件大小： | 275K |
| 代理商： | LM2576 |
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LM2576
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 = 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.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (Vin = 12 V, ILoad = 0.5 A, TJ = 25°C)
Vout
3.234
3.3
3.366
V
Output Voltage (6.0 V
≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 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 = 3.0 A)
η
75
%
Output Voltage (Vin = 12 V, ILoad = 0.5 A, TJ = 25°C)
Vout
4.9
5.0
5.1
V
Output Voltage (8.0 V
≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 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 = 3.0 A)
η
77
%
Output Voltage (Vin = 25 V, ILoad = 0.5 A, TJ = 25°C)
Vout
11.76
12
12.24
V
Output Voltage (15 V
≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 A)
Vout
V
TJ = 25°C
11.52
12
12.48
TJ = 40 to +125°C
11.4
12.6
Efficiency (Vin = 15 V, ILoad = 3.0 A)
η
88
%
Output Voltage (Vin = 30 V, ILoad = 0.5 A, TJ = 25°C)
Vout
14.7
15
15.3
V
Output Voltage (18 V
≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 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 = 3.0 A)
η
88
%
Feedback Voltage (Vin = 12 V, ILoad = 0.5 A, Vout = 5.0 V, TJ = 25°C)
Vout
1.217
1.23
1.243
V
Feedback Voltage (8.0 V
≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 A, Vout = 5.0 V)
Vout
V
TJ = 25°C
1.193
1.23
1.267
TJ = 40 to +125°C
1.18
1.28
Efficiency (Vin = 12 V, ILoad = 3.0 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 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2576/D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Easy Switcher? 3.0 A Step-Down Voltage Regulator |
| LM2576_05 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:52kHz Simple 3A Buck Regulator |
| LM2576_06 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:3.0 A, 15 V, Step−Down Switching Regulator |
| LM2576_11 | 制造商:HTC 制造商全称:HTC Korea TAEJIN Technology Co. 功能描述:3A, 52kHz, Step-Down Switching Regulator |
| LM2576_12 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:EASY SWITCHERER 3.0 A STEPa??DOWN VOLTAGE REGULATOR |
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