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參數(shù)資料
| 型號： | LM2575 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator(1.0A,可調(diào)輸出電壓,降壓型開關(guān)穩(wěn)壓器) |
| 中文描述： | 1.0甲，可調(diào)輸出電壓，降壓型開關(guān)穩(wěn)壓器（1.0安培，可調(diào)輸出電壓，降壓型開關(guān)穩(wěn)壓器） |
| 文件頁數(shù)： | 3/28頁 |
| 文件大?。?/td> | 363K |
| 代理商： | LM2575 |
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LM2575
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
T
J
40 to +125
°
C
Supply Voltage
V
in
40
V
SYSTEM PARAMETERS
([Note 1] Test Circuit Figure 14)
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, V
in
= 12 V for the 3.3 V, 5.0 V, and Adjustable version, V
in
= 25 V
for the 12 V version, and V
in
= 30 V for the 15 V version. I
Load
= 200 mA. For typical values T
J
= 25
°
C, for min/max values T
J
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 (V
in
= 12 V, I
Load
= 0.2 A, T
J
= 25
°
C)
V
out
3.234
3.3
3.366
V
Output Voltage (4.75 V
≤
V
in
≤
40 V, 0.2 A
≤
I
Load
≤
1.0 A)
T
J
= 25
°
C
T
J
= 40 to +125
°
C
Efficiency (V
in
= 12 V, I
Load
= 1.0 A)
V
out
V
3.168
3.135
3.3
3.432
3.465
η
75
%
LM25755
([Note 1] Test Circuit Figure 14)
Output Voltage (V
in
= 12 V, I
Load
= 0.2 A, T
J
= 25
°
C)
V
out
4.9
5.0
5.1
V
Output Voltage (8.0 V
≤
V
in
≤
40 V, 0.2 A
≤
I
Load
≤
1.0 A)
T
J
= 25
°
C
T
J
= 40 to +125
°
C
Efficiency (V
in
= 12 V, I
Load
= 1.0 A)
V
out
V
4.8
4.75
5.0
5.2
5.25
η
77
%
LM257512
(Note 1 Test Circuit Figure 14)
Output Voltage (V
in
= 25 V, I
Load
= 0.2 A, T
J
= 25
°
C)
V
out
11.76
12
12.24
V
Output Voltage (15 V
≤
V
in
≤
40 V, 0.2 A
≤
I
Load
≤
1.0 A)
T
J
= 25
°
C
T
J
= 40 to +125
°
C
Efficiency (V
in
= 15V, I
Load
= 1.0 A)
V
out
V
11.52
11.4
12
12.48
12.6
η
88
%
LM257515
(Note 1 Test Circuit Figure 14)
Output Voltage (V
in
= 30 V, I
Load
= 0.2 A, T
J
= 25
°
C)
Output Voltage (18 V
≤
V
in
≤
40 V, 0.2 A
≤
I
Load
≤
1.0 A)
T
J
= 25
°
C
T
J
= 40 to +125
°
C
Efficiency (V
in
= 18 V, I
Load
= 1.0 A)
V
out
14.7
15
15.3
V
V
out
V
14.4
14.25
15
15.6
15.75
η
88
%
LM2575 ADJUSTABLE VERSION
(Note 1 Test Circuit Figure 14)
Feedback Voltage (V
in
= 12 V, I
Load
= 0.2 A, V
out
= 5.0 V, T
J
= 25
°
C)
V
FB
1.217
1.23
1.243
V
Feedback Voltage (8.0 V
≤
V
in
≤
40 V, 0.2 A
≤
I
Load
≤
1.0 A, V
out
= 5.0 V)
T
J
= 25
°
C
T
J
= 40 to +125
°
C
Efficiency (V
in
= 12 V, I
Load
= 1.0 A, V
out
= 5.0 V)
V
FB
V
1.193
1.18
1.23
1.267
1.28
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: T
low
= 40
°
C
T
high
= +125
°
C
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LM2575/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Easy Switcher? 1.0 A Step-Down Voltage Regulator |
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| LM2575_06 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575_09 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:52kHz Simple 1A Buck Regulator |
| LM2575-05IKC | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
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