FDMF3170 datasheet(10/21 Pages) ONSEMI

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FDMF3170

Rev. 1.2

Typical Performance Characteristics (Continued)

Test Conditions: VIN=12 V, VCC=PVCC=5 V, VOUT=1.8 V, LOUT=150 nH, TA= +25°C and natural convection cooling

unless otherwise noted.

Figure 10.

Driver Current vs. Driver Voltage

Figure 11.

Driver Current vs. Output Current

Figure 12.

UVLO Threshold vs. Temperature

Figure 13.

PWM Threshold vs. Driver Voltage

Figure 14.

PWM Threshold vs. Temperature

Figure 15.

Quiescent Current vs. VCC Voltage

24.000

25.000

26.000

27.000

28.000

29.000

30.000

31.000

32.000

4.5

4.7

4.9

5.1

5.3

5.5

Driver Voltage [V]

Driver Current

27.500

28.000

28.500

29.000

29.500

30.000

30.500

Output Current [A]

Driver Current

3.64

3.66

3.68

3.7

3.72

3.74

3.76

3.78

3.8

-40

-20

Temperature [C]

UVLO Threshold vs. Temperature

UVLO_UP

UVLO_DOWN

0.5

1.5

2.5

4.5

4.7

4.9

5.1

5.3

5.5

Driver Supply Voltage [V]

PWM Threshold vs. Driver Voltage

VIL_PWM (V)

VTri_Low (V)

VIH_PWM (V)

VTri_High (V)

0.5

1.5

2.5

-40

-20

Temperature [C]

PWM Threshold vs. Temperature

VIL_PWM (V)

VTri_Low (V)

VHI_PWM (V)

VTri_High (V)

5.5500

5.6000

5.6500

5.7000

5.7500

5.8000

5.8500

4.5

4.7

4.9

5.1

5.3

5.5

Vcc Voltage [V]

Quiescent Current

VIN=12 V, Fs =500 kHz, VOUT=1.8 V, IOUT=0 A

VIN=12 V, PVcc & VCC=5 V, VOUT=1.8 V, Fs =500 kHz

EN =5 V

PVcc , Vcc,& EN =5 V

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