LM2575 datasheet(5/28 Pages) MOTOROLA

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LM2575

MOTOROLA ANALOG IC DEVICE DATA

TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 14)

–50

3.0

–50

2.0

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

°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

100

125

0.8

0.4

–0.2

–0.4

0.6

0.2

1.0

0.6

0.2

–0.2

–0.6

2.5

1.5

0.5

2.0

1.0

6.0

4.0

8.0

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

0.2

0.3

0.4

0.5

100

0.6

125

0.7

5.0

–25

100

125

0.8

0.9

1.0

ILoad = 200 mA

ILoad = 1.0 A

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