LM2576_12 datasheet(6/28 Pages) MOTOROLA

Part #	LM2576

Description	EASY SWITCHERER 3.0 A STEP?밆OWN VOLTAGE REGULATOR

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Manufacturer	MOTOROLA [Motorola, Inc]

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LM2576

6

MOTOROLA ANALOG IC DEVICE DATA

2.0

2.5

3.0

4.0

TJ, JUNCTION TEMPERATURE (°C)

SWITCH CURRENT (A)

TJ, JUNCTION TEMPERATURE (°C)

Figure 8. Standby Quiescent Current

Vin, INPUT VOLTAGE (V)

Figure 9. Switch Saturation Voltage

Figure 10. Oscillator Frequency

Figure 11. Minimum Operating Voltage

Figure 12. Feedback Pin Current

Vin = 12 V

Normalized at

25

°C

TJ = 25°C

Adjustable Version Only

200

180

140

120

100

80

60

40

20

0

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

8.0

6.0

4.0

2.0

0

–2.0

–4.0

–6.0

–8.0

–10

5.0

4.5

3.5

1.5

1.0

0.5

0

40

30

25

20

15

10

5

0

0.5

1.0

1.5

2.0

3.0

125

100

75

50

25

0

–25

–50

125

100

75

50

25

0

–25

–50

TJ, JUNCTION TEMPERATURE (°C)

Adjustable Version Only

100

80

60

40

20

0

–20

–40

–60

–80

–100

125

100

75

50

25

0

–25

–50

160

35

2.5

–40

°C

25

°C

125

°C

Vout ' 1.23 V

ILoad = 500 mA

TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 15)

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LM2576 Datasheet(PDF) 6 Page - Motorola, Inc

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