ISL81801

4. Typical Performance Graphs

FN8937 Rev.1.4

Page 21 of 49

Mar 8, 2024

Figure 19. Output Current IOUT (DC) vs IMON_OUT

Pin Voltage, RS_OUT = 4mΩ, RIM_OUT = 40.2k

Figure 20. CCM Mode Efficiency

Figure 21. DE Mode Efficiency

Figure 22. CCM Load Regulation at +25°C

Figure 23. CCM Line Regulation at 10A Load +25°C

Figure 24. Boost Mode Waveforms, VIN = 9V, IOUT = 10A,

CCM Mode

Oscilloscope plots are taken using the ISL81801EVAL1Z evaluation board, VIN = 9V to 80V, VOUT = 12V, IOUT = 10A, unless otherwise noted.

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

02468

10

IIN (A)

+25C

+125C

-40C

30

40

50

60

70

80

90

100

02468

10

IOUT (A)

Vin=9V

Vin=12V

Vin=24V

Vin=36V

Vin=48V

Vin=60V

Vin=80V

30

40

50

60

70

80

90

100

02468

10

IOUT (A)

Vin=9V

Vin=12V

Vin=24V

Vin=36V

Vin=48V

Vin=60V

Vin=80V

11.90

11.92

11.94

11.96

11.98

12.00

12.02

12.04

12.06

12.08

12.10

02468

10

IOUT (A)

Vin=9V

Vin=12V

Vin=24V

Vin=36V

Vin=48V

Vin=60V

Vin=80V

11.90

11.92

11.94

11.96

11.98

12.00

12.02

12.04

12.06

12.08

12.10

0

10203040506070

80

VIN (V)

PHASE1 10V/Div

PHASE2 20V/Div

V

OUT 100mV/Div

I

L 10A/Div

BOOT Refresh

4μs/Div