ISL8205M

FN8755 Rev 4.01

Page 13 of 25

Jun 24, 2022

Overvoltage Protection TA = +25°C, VIN = 5V, VOUT = 1.2V, CIN = 100µF POScap + 22µF ceramic capacitors, COUT = 2x22µF ceramic

capacitors.

FIGURE 27. OUTPUT OVERVOLTAGE PROTECTION

Power Loss TA = +25°C, CIN = 100µF POScap + 22µF ceramic capacitors, COUT = 2x22µF ceramic capacitors.

FIGURE 28. POWER LOSS AT VIN = 5V, TA = +25°C

FIGURE 29. POWER LOSS AT VIN = 3.3V, TA = +25°C

Derating All of the following curves were plotted at TJ = +120°C.

FIGURE 30. DERATING CURVES AT VIN = 5V, VOUT = 1.2V

FIGURE 31. DERATING CURVES AT VIN = 5V, VOUT = 3.3V

Typical Performance Characteristics (Continued)

SW 2V/DIV

VOUT 500mV/DIV

PGOOD 5V/DIV

500µs/DIV

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

0

0.511.522.533.544.5

5

LOAD CURRENT (A)

Vout=1.2V, Fsw=1.6MHz PWM

Vout=3.3V, Fsw=3MHz PWM

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

LOAD CURRENT (A)

Vout=1.2V, Fsw=1.6MHz PWM

Vout=2.5V, Fsw=2.5MHz PWM

0.0

1.0

2.0

3.0

4.0

5.0

6.0

0

10

203040

506070

8090 100 110 120

AMBIENT TEMPERATURE (°C)

200 LFM

0 LFM

0.0

1.0

2.0

3.0

4.0

5.0

6.0

0

102030405060708090 100 110 120

AMBIENT TEMPERATURE (°C)

200 LFM

0 LFM