ISL70002SEH Datasheet, PDF (12/23 Pages) Intersil Corporation – Rad Hard and SEE Hard 12A Synchronous Buck Regulator with Multi-Phase Current Sharing

ISL70002SEH
Typical Performance Curves
600.0
599.5
599.0
OCB
598.5
598.0
597.5
597.0
OCA
596.5
596.0
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (°C)
FIGURE 5. OVERCURRENT REFERENCE VOLTAGE
602.0
601.5
601.0
600.5
V_IN = 5.5V
600.0
599.5
599.0
V_IN = 3V
598.5
598.0
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (°C)
FIGURE 6. REF VOLTAGE vs V_IN
1,050
1,025
V_IN = 3V
1,000
975
V_IN = 5.5V
950
925
900
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (°C)
FIGURE 7. OSC FREQUENCY vs V_IN
275
250
V_IN = 3V
225
200
175
V_IN = 5.5V
150
125
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (°C)
FIGURE 8. LXx MINIMUM ON TIME vs V_IN
30
25
20
OCx DISABLED
15
10
5
0
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (°C)
FIGURE 9. SUSTAINED OUTPUT CURRENT WITH OVERCURRENT
DISABLED
70
65
60
V_IN = 5.5V
55
50
45
40
V_IN = 3.6V
35
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (°C)
FIGURE 10. OPERATING CURRENT vs V_IN
12
FN8264.1
April 5, 2012