參數(shù)資料
型號: LM2574-15
廠商: Motorola, Inc.
英文描述: EASY SWITCHERE⑩ 0.5 A STEP-DOWN VOLTAGE REGULATOR
中文描述: 易SWITCHERE⑩0.5降壓穩(wěn)壓器
文件頁數(shù): 5/24頁
文件大?。?/td> 397K
代理商: LM2574-15
LM2574
5
MOTOROLA ANALOG IC DEVICE DATA
Is
μ
IQ
Vo
TJ, JUNCTION TEMPERATURE (
°
C)
IO
TJ, JUNCTION TEMPERATURE (
°
C)
Vin, INPUT VOLTAGE (V)
Vin, INPUT VOLTAGE (V)
I
TJ, JUNCTION TEMPERATURE (
°
C)
Vo
Figure 2. Normalized Output Voltage
TJ, JUNCTION TEMPERATURE (
°
C)
Figure 3. Line Regulation
Vin = 20 V
ILoad = 100 mA
Normalized at TJ = 25
°
C
Figure 4. Dropout Voltage
Figure 5. Current Limit
Figure 6. Quiescent Current
Figure 7. Standby Quiescent Current
ILoad = 100 mA
TJ = 25
°
C
3.3 V, 5.0 V and ADJ
12 V and 15 V
Vin = 25 V
ILoad = 100 mA
ILoad = 500 A
Vin = 12 V
Vin = 40 V
L = 300
μ
H
ILoad = 500 mA
ILoad = 100 mA
Vout = 5.0 V
Measured at
Ground Pin
TJ = 25
°
C
VON/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
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