ISL85033 Intersil, ISL85033 Datasheet - Page 14

• Manufacturer Part Number: ISL85033
• Description: Wide VIN Dual Standard Buck Regulator
• Manufacturer: Intersil

Typical Performance Curves
FIGURE 30. RATIOMETRIC START-UP SEQUENCING AT
FIGURE 32. STEADY STATE OPERATION CHANNEL 1 AT
FIGURE 28. SOFT-DISCHARGE SHUTDOWN CHANNEL 2
V
LX2 10V/DIV
SYNC 5V/DIV
LX1 10V/DIV
OUT1
RIPPLE 20mV/DIV
NO LOAD
FULL LOAD WITH SYNC FREQUENCY = 4MHz
14
V
OUT2
EN1, 2 2V/DIV
V
V
IL2 0.5A/DIV
OUT1
OUT2
EN2 5V/DIV
PG 5V/DIV
0.5V/DIV
2V/DIV
2V/DIV
ISL85033
ISL85033
Circuit of Figure 2. V
I
values are at T
OUT2
= 3A, T
FIGURE 29. INDEPENDENT START-UP SEQUENCING AT
FIGURE 31. ABSOLUTE START-UP SEQUENCING AT NO
FIGURE 33. STEADY STATE OPERATION CHANNEL 2 AT
A
A
V
LX2 10V/DIV
SYNC 5V/DIV
= -40°C to +85°C, unless otherwise noted. Typical
LX1 10V/DIV
= +25°C. (Continued)
OUT2
IN
RIPPLE 20mV/DIV
NO LOAD
LOAD
FULL LOAD WITH SYNC FREQUENCY = 4MHz
= 12V, V
OUT1
= 5V, V
OUT2
= 3.3V, I
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EN1, 2 2V/DIV
V
V
EN1, 2 2V/DIV
V
V
OUT1
OUT2
OUT1
OUT2
2V/DIV
2V/DIV
OUT1
2V/DIV
2V/DIV
June 24, 2010
FN6676.1
= 3A,