IOUT2 (A)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.16

1.17

1.18

1.19

1.20

1.21

1.22

1.23

D020

-40°C

+25°C

+125°C

SUPPLY VOLTAGE (V)

4.0

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

5.0

1.16

1.17

1.18

1.19

1.20

1.21

1.22

1.23

D021

-40°C

+25°C

+125°C

3.26

3.27

3.28

3.29

3.30

3.31

3.32

3.33

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

I

OUT1 (A)

+125°C

+25°C

-40°C

C006

3.26

3.27

3.28

3.29

3.30

3.31

3.32

3.33

4.4

4.5

4.6

4.7

4.8

4.9

5.0

5.1

5.2

5.3

5.4

5.5

5.6

SUPPLY VOLTAGE (V)

+125°C

+25°C

-40°C

C007

IOUT (A)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

0

10

20

30

40

50

60

70

80

90

100

D018

3.3V

2.65V

1.8V

1.5V

1.2V

3060

3080

3100

3120

3140

3160

3180

3200

3220

3240

3260

3280

-60

-40

-20

0

20

40

60

80

100

120

140

TEMPERATURE (

SC)

C012

LP8728B-Q1

SNVSA70 – FEBRUARY 2015

www.ti.com

6.7 Typical Characteristics

Unless otherwise noted, VIN = 5 V, TA = 25°C, inductor type: TOKO MDT2520-CN1R5M, input and output capacitor type:

MuRata GRM21BR71A106KE51L.

Figure 2. Switching Frequency vs Temperature

Figure 1. Efficiency vs Output Current

Figure 3. Buck1 Load Regulation

Figure 4. Buck1 Line Regulation

Figure 5. Buck2 Load Regulation

Figure 6. Buck2 Line Regulation

8

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