PCMB065T-2R2MS datasheet(9/22 Pages) IRF

9 / 22 page

March 27, 2013 | V2.2 | PD97601

IR3473

6A Highly Integrated SupIRBuck

TYPICAL OPERATING DATA

Tested with demoboard shown in Figure 4, VIN = 12V, VCC = 5V, VOUT = 1.05V, Fs = 300kHz, TA = 25

oC, no airflow,

unless otherwise specified.

45%

50%

55%

60%

65%

70%

75%

80%

85%

90%

0.01

0.1

Load Current (A)

VIN = 12V

VIN = 8V

VIN = 19V

Figure 5: Efficiency vs. Load Current for VOUT = 1.05V

100

150

200

250

300

350

23456

Load Current (A)

Figure 7: Switching Frequency vs. Load Current

1.050

1.055

1.060

1.065

1.070

1.075

1.080

456

Load Current (A)

12VIN

8VIN

19VIN

Figure 9: Load Regulation

45%

50%

55%

60%

65%

70%

75%

80%

85%

90%

95%

0.01

0.1

Load Current (A)

VOUT = 1.05V; L = 2.2µH, 11.2mΩ

VOUT = 1.5V; L = 3.3µH, 19.9mΩ

VOUT = 3.3V; L = 4.7µH, 23mΩ

Figure 6: Efficiency vs. Load Current for VIN = 12V

200

400

600

800

1000

1200

1400

200 250 300 350 400 450 500 550 600 650 700 750

Switching Frequency (kHz)

5.0 Vout

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

Figure 8: RFF vs. Switching Frequency

1.050

1.055

1.060

1.065

1.070

1.075

1.080

10 11 12 13 14 15 16 17 18 19

Input Voltage (V)

Figure 10: Line Regulation at IOUT = 6A

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