0.3

0.8

1.3

1.8

2.3

2.8

3.3

3.8

4.3

4.8

5.3

0.9

0.95

1

1.05

1.1

1.15

1.2

1.25

1.3

1.35

1.4

1.45

−1.1

−0.6

0

0.6

1.1

1.7

2.3

2.8

3.4

4

4.5

5.1

Output Voltage (V)

VIN = 12V

VGS = 5V

fSW = 500kHz

LOUT = 0.95µH

IOUT = 15A

G001

0

100 200 300 400 500 600 700 800 900 1000 1100

0.95

1

1.05

1.1

1.15

1.2

1.25

1.3

−0.56

0

0.56

1.12

1.68

2.25

2.81

3.37

Output Inductance (nH)

VIN = 12V

VGS = 5V

VOUT = 1.3V

fSW = 500kHz

IOUT = 15A

G001

0

200

400

600

800

1000

1200

1400

1600

0.7

0.8

0.9

1

1.1

1.2

1.3

1.4

1.5

−3.3

−2.2

−1.1

0.0

1.1

2.2

3.3

4.5

5.6

Switching Frequency (kHz)

VIN = 12V

VGS = 5V

VOUT = 1.3V

LOUT = 0.95µH

IOUT = 15A

G001

0

2

4

6

8

10

12

14

16

18

20

22

24

0.9

0.95

1

1.05

1.1

1.15

1.2

−1.1

−0.6

0.0

0.6

1.1

1.7

2.3

Input Voltage (V)

VGS = 5V

VOUT = 1.3V

LOUT = 0.95µH

fSW = 500kHz

IOUT = 15A

G001

CSD87381P

SLPS405F – MARCH 2013 – REVISED MARCH 2015

www.ti.com

Typical Power Block Characteristics (continued)

TJ = 125°C, unless stated otherwise. For Figure 3 and Figure 4, the Typical Power Block System Characteristic curves are

based on measurements made on a PCB design with dimensions of 4 inches (W) × 3.5 inches (L) × 0.062 inch (H) and 6

copper layers of 1 oz. copper thickness. See Application and Implementation for detailed explanation.

Figure 5. Normalized Power Loss vs Switching Frequency

Figure 6. Normalized Power Loss vs Input Voltage

Figure 7. Normalized Power Loss vs Output Voltage

Figure 8. Normalized Power Loss vs Output Inductance

6

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