Intersil ISL8202MEVAL1Z, Руководство пользователя

Страница: 8 / 10

User Guide 071
UG071.0
May 3, 2016
Submit Document Feedback 8
ISL8202MEVAL1Z Performance Data
The following data was acquired using a ISL8202MEVAL1Z evaluation
board at +25°C ambient and free air 0LFM.
FIGURE 15. EFFICIENCY T
A
= +25°C, V
IN
= 3.3V PFM MODE FIGURE 16. EFFICIENCY T
A
= +25°C, V
IN
= 5V PFM MODE
FIGURE 17. EFFICIENCY T
A
= +25°C, V
IN
= 3.3V PWM MODE FIGURE 18. EFFICIENCY T
A
= +25°C, V
IN
= 5V PWM MODE
FIGURE 19. LOAD TRANSIENT V
IN
= 5V, V
OUT
= 1.2V, I
OUT
= 0 TO 3A,
f
SW
= 1.5MHz, C
OUT
= 2 x 22µF CERAMIC CAPACITORS
LOAD CURRENT SLEW RATE: 1A/µs
FIGURE 20. LOAD TRANSIENT V
IN
= 5V, V
OUT
= 3.3V, I
OUT
= 0 TO 3A,
f
SW
= 2MHz, C
OUT
= 2 x 22µF CERAMIC CAPACITORS,
LOAD CURRENT SLEW RATE: 1A/µs
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
0 0.5 1 1.5 2 2.5 3
LOAD CURRENT (A)
Vout = 1V , Fsw = 1.3MHz
Vout=1.2V , Fsw = 1.5MHz
Vout = 2.5V, Fsw = 2MHz
EFFIC
IENCY (%)
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
0 0.5 1 1.5 2 2.5 3
LOAD CURRENT (A)
Vout = 1V , Fsw = 1.3MHz
Vout=1.2V , Fsw = 1.5MHz
Vout = 2.5V, Fsw = 2MHz
Vout = 3.3V, Fsw = 2MHz
EFFICIENCY (%)
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
0 0.5 1 1.5 2 2.5 3
LOAD CURRENT (A)
Vout = 1V , Fsw = 1.3MHz
Vout=1.2V , Fsw = 1.5MHz
Vout = 2.5V, Fsw = 2MHz
EFFICIENCY (%)
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
0 0.5 1 1.5 2 2.5 3
LOAD CURRENT (A)
Vout = 1V , Fsw = 1.3MHz
Vout=1.2V , Fsw = 1.5MHz
Vout = 2.5V, Fsw = 2MHz
Vout = 3.3V, Fsw = 2MHz
EFFICIENCY (%)
V
OUT
50mV/DIV
I
OUT
1A/DIV
100µs/DIV
100µs/DIV 100µs/DIV
V
OUT
50mV/DIV
I
OUT
1A/DIV