LM2575-15 datasheet(5/28 Pages) MOTOROLA

Part #	LM2575-15

Description	EASY SWITCHERE??1.0 A STEP-DOWN VOLTAGE REGULATOR

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Manufacturer	MOTOROLA [Motorola, Inc]

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LM2575

5

MOTOROLA ANALOG IC DEVICE DATA

TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 14)

0

20

–50

3.0

0

–50

2.0

0

1.2

–50

Vin, INPUT VOLTAGE (V)

TJ, JUNCTION TEMPERATURE (°C)

Vin, INPUT VOLTAGE (V)

TJ, JUNCTION TEMPERATURE (°C)

SWITCH CURRENT (A)

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 Ω

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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