LM3253_14 datasheet(9/26 Pages) TI1

номер детали	LM3253

подробное описание детали	High-Current Step-Down Converter for 2G/3G/4G RF Power Amplifiers

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производитель	TI1 [Texas Instruments]

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2.5

3.0

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4.0

4.5

5.0

5.5

2.4

2.6

2.8

3.0

3.2

3.4

3.6

INPUT VOLTAGE (V)

DROPOUT

IOUT= 1.5A

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

VCON (V)

2.5X GAIN

0

200

400

600

800

1000

70

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85

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100

LOAD CURRENT (mA)

VOUT = 1.6V

VOUT = 2.0V

VOUT = 2.5V

VOUT = 3.0V

VOUT = 3.5V

900

1200 1500 1800 2100 2400 2700

0

10

20

30

40

50

60

70

80

90

100

LOAD CURRENT (mA)

VOUT = 2.0V

VOUT = 2.5V

VOUT = 3.0V

VOUT = 3.5V

0

20

40

60

80 100 120 140 160

60

65

70

75

80

85

90

95

100

LOAD CURRENT (mA)

VOUT = 1.0V

VOUT = 1.5V

VOUT = 2.0V

VOUT = 2.5V

VOUT = 3.0V

0

100 200 300 400 500 600 700 800

60

65

70

75

80

85

90

95

100

LOAD CURRENT (mA)

VOUT = 1.6V

VOUT = 2.0V

VOUT = 2.5V

VOUT = 3.0V

VOUT = 3.5V

LM3253

www.ti.com

SNVS791Q – FEBRUARY 2012 – REVISED MAY 2013

TYPICAL PERFORMANCE CHARACTERISTICS

Efficiency vs. Load Current

VIN = 3.8V, IOUT = 10mA to 150mA

VIN = 3.8V, IOUT = 150mA to 750mA

Figure 2.

Figure 3.

Efficiency vs. Load Current

VIN = 3.8V, IOUT = 100mA to 1A

VIN = 5V, IOUT = 1A to 2.5A

Figure 4.

Figure 5.

Output Voltage vs. Supply Voltage

Output Voltage vs. VCON Voltage

VOUT = 3.4V, VIN = 4.3V down to dropout

VIN = 4.2V, RLOAD = 6.8Ω, 0.16V < VCON < 1.4V

Figure 6.

Figure 7.

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Аналогичный номер детали - LM3253_14

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Аналогичное описание - LM3253_14

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