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參數(shù)資料
| 型號： | LM2574 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 0.5 A, Adjustable Output Voltage, Step-Down Switching Regulator(0.5A,可調(diào)輸出電壓,降壓型開關(guān)穩(wěn)壓器) |
| 中文描述： | 0.5甲，可調(diào)輸出電壓，降壓型開關(guān)穩(wěn)壓器（0.5A的，可調(diào)輸出電壓，降壓型開關(guān)穩(wěn)壓器） |
| 文件頁數(shù)： | 5/26頁 |
| 文件大?。?/td> | 295K |
| 代理商： | LM2574 |
LM2574, NCV2574
http://onsemi.com
5
Is
μ
IQ
Vo
T
J
, JUNCTION TEMPERATURE (
°
C)
IO
T
J
, JUNCTION TEMPERATURE (
°
C)
V
in
, INPUT VOLTAGE (V)
V
in
, INPUT VOLTAGE (V)
I
T
J
, JUNCTION TEMPERATURE (
°
C)
Vo
Figure 2. Normalized Output Voltage
T
J
, JUNCTION TEMPERATURE (
°
C)
Figure 3. Line Regulation
V
in
= 20 V
I
Load
= 100 mA
Normalized at T
J
= 25
°
C
Figure 4. Dropout Voltage
Figure 5. Current Limit
Figure 6. Quiescent Current
Figure 7. Standby Quiescent Current
I
Load
= 100 mA
T
J
= 25
°
C
3.3 V, 5.0 V and ADJ
12 V and 15 V
V
in
= 25 V
I
Load
= 100 mA
I
Load
= 500 A
V
in
= 12 V
V
in
= 40 V
L = 300 H
I
Load
= 500 mA
I
Load
= 100 mA
V
out
= 5.0 V
Measured at
Ground Pin
T
J
= 25
°
C
V
ON/OFF
= 5.0 V
TYPICAL PERFORMANCE CHARACTERISTICS
(Circuit of Figure 16)
1.0
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1.0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
2.0
1.5
1.0
0.5
0
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
20
18
16
14
12
10
8.0
6.0
4.0
200
180
160
140
120
100
80
60
40
20
0
125
100
75
60
25
0
25
50
40
35
30
25
20
15
10
5.0
0
125
100
75
60
25
0
25
50
125
100
75
60
25
0
25
50
40
35
30
25
20
15
10
5.0
0
125
100
75
60
25
0
25
50
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2575-33IKTGR | 1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575T-5 | Precision Chopper-Stabilized Advanced LinCMOS(TM) Operational Amplifier 8-SOIC -55 to 125 |
| LM2575T-12 | EASY SWITCHERE⑩ 1.0 A STEP-DOWN VOLTAGE REGULATOR |
| LM2575D2T-15 | EASY SWITCHERE⑩ 1.0 A STEP-DOWN VOLTAGE REGULATOR |
| LM2575D2T-ADJ | EASY SWITCHERE⑩ 1.0 A STEP-DOWN VOLTAGE REGULATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2574 3.3V WAF | 制造商:Motorola Inc 功能描述: |
| LM2574/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Easy Switcher? 0.5A Step-Down Voltage Regulator |
| LM2574_05 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:52kHz Simple 0.5A Buck Regulator |
| LM2574_06 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:0.5 A, Adjustable Output Voltage, Step−Down Switching Regulator |
| LM2574-12 | 制造商:Texas Instruments 功能描述: |
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