參數(shù)資料
型號: LM2575D2T-3.3
廠商: MOTOROLA INC
元件分類: 穩(wěn)壓器
英文描述: 3.2 A SWITCHING REGULATOR, 52 kHz SWITCHING FREQ-MAX, PSSO5
封裝: PLASTIC, D2PAK-5
文件頁數(shù): 24/28頁
文件大小: 380K
代理商: LM2575D2T-3.3
LM2575
5
MOTOROLA ANALOG IC DEVICE DATA
TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 14)
V out
,OUTPUT
VOL
TAGE
CHANGE
(%)
0
20
–50
3.0
0
–50
2.0
0
1.2
–50
I Q
,QUIESCENT
CURRENT
(mA)
Vin, INPUT VOLTAGE (V)
I O
,OUTPUT
CURRENT
(A)
TJ, JUNCTION TEMPERATURE (°C)
Vin, INPUT VOLTAGE (V)
INPUT–OUTPUT
DIFFERENTIAL
(V)
TJ, JUNCTION TEMPERATURE (°C)
V
sat
,SA
TURA
TION
VOL
TAGE
(V)
SWITCH CURRENT (A)
V out
,OUTPUT
VOL
TAGE
CHANGE
(%)
Figure 2. Normalized Output Voltage
TJ, JUNCTION TEMPERATURE (°C)
Figure 3. Line Regulation
Vin = 20 V
ILoad = 200 mA
Normalized at
TJ = 25°C
Figure 4. Switch Saturation Voltage
Figure 5. Current Limit
Figure 6. Dropout Voltage
Figure 7. Quiescent Current
ILoad = 200 mA
TJ = 25°C
3.3 V, 5.0 V and Adj
12 V and 15 V
25
°C
Vin = 25 V
Vout = 5.0 V
Measured at
Ground Pin
TJ = 25°C
ILoad = 200 mA
ILoad = 1.0 A
Vout = 5%
Rind = 0.2
125
°C
–40
°C
5.0
–25
10
0
20
15
25
75
50
35
30
40
100
125
0.8
0.4
0
–0.2
–0.4
0.6
0.2
1.0
0.6
0.2
–0.2
–0.6
2.5
1.5
0.5
0
2.0
1.0
14
10
6.0
4.0
18
12
8.0
16
1.1
0.9
0.7
0.5
1.0
0.8
0.6
1.2
0.8
0.4
1.0
0.6
1.8
1.4
1.6
0.4
–25
0.1
0
0.2
25
0.3
50
0.4
75
0.5
100
0.6
125
0.7
5.0
–25
10
0
15
25
20
50
25
75
30
100
35
125
0.8
0.9
1.0
40
ILoad = 200 mA
ILoad = 1.0 A
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