LM3248TMENOPB datasheet(10/31 Pages) TI1

Numer części	LM3248TMENOPB

Szczegółowy opis	LM3248 2.7 MHz, 2.5A Adjustable Boost-Buck DC/DC Converter

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Producent	TI1 [Texas Instruments]

Strona internetowa	http://www.ti.com

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10 / 31 page

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95

100

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

Load Current (A)

0.8Vout

1.0Vout

1.5Vout

2.0Vout

2.5Vout

3.0Vout

3.5Vout_Boost

4.0Vout_Boost

C009

60

65

70

75

80

85

90

95

100

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

Load Current (A)

0.8Vout

1.0Vout

1.5Vout

2.0Vout

2.5Vout

3.0Vout

3.5Vout

4.0Vout_Boost

C010

2.2

2.4

2.6

2.8

3.0

3.2

3.4

3.6

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

4.3

Input Voltage (V)

500mA

800mA

1A

1.5A

C006

2.2

2.4

2.6

2.8

3.0

3.2

3.4

3.6

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

4.3

Input Voltage (V)

500mA

800mA

1A

1.5A

C005

2.5

2.6

2.7

2.8

2.9

3.0

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

Input Voltage (V)

C008

2.2

2.4

2.6

2.8

3.0

3.2

3.4

3.6

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

4.3

Input Voltage (V)

500mA

800mA

1A

1.5A

C007

LM3248

SNVSA01A – JULY 2013 – REVISED SEPTEMBER 2013

www.ti.com

TYPICAL CHARACTERISTICS

For all Efficiency vs Load Current graphs, L1=1276AS-H-1R0N, L3=1285AS-H-1R5N.

Switching Frequency

Output Voltage

vs

Input Voltage

Input Voltage (VOUT = 3.0V)

Figure 3.

Figure 4.

Output Voltage

vs

Input Voltage (VOUT = 3.2V)

Input Voltage (VOUT = 3.4V)

Figure 5.

Figure 6.

Efficiency vs Load Current

VBATT=3.4V, MODE=3G4G, TBOOSTGATE=1ms

VBATT=3.7V, MODE=3G4G, TBOOSTGATE=1ms

Figure 7.

Figure 8.

10

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