ISL8023AIRTAJZ-T7A Intersil, ISL8023AIRTAJZ-T7A Datasheet - Page 11

• Manufacturer Part Number: ISL8023AIRTAJZ-T7A
• Description: ISL8023 Series 2.7 - 5.5 V 3 A 4 Mhz Buck Regulator - TQFN-16
• Manufacturer: Intersil

Typical Operating Performance
SYNC = V IN , L = 1.0µH, C 1 = 22µF, C 2 = 2 x 22µF, I
FIGURE 27. STEADY STATE OPERATION AT NO LOAD WITH
FIGURE 23. SOFT-START AT NO LOAD (PFM)
FREQUENCY = 2MHz
FIGURE 25. SOFT-START AT FULL LOAD
PG 2V/Div
I
L
1A/Div
V
OUT
11
RIPPLE 20mV/Div
SYNC 5V/Div
I
PHASE 5V/Div
L
0.5A/Div
OUT
V
EN 2V/Div
OUT
I
PG 5V/Div
V
L
= 0A to 4A
OUT
EN 2V/Div
ISL8023, ISL8024
2A/Div
1V/Div
1V/Div
.
(Continued)
Unless otherwise noted, operating conditions are: T
FIGURE 28. STEADY STATE OPERATION AT FULL LOAD WITH
FIGURE 24. SOFT-START WITH PRE-BIASED 1V
FIGURE 26. SOFT-DISCHARGE SHUTDOWN
FREQUENCY = 2MHz
PG 5V/Div
I
L
1A/Div
EN 2V/Div
V
OUT
SYNC 5V/Div
RIPPLE 20mV/Div
PHASE 5V/Div
I
L
2A/Div
A
= +25°C, V
V
V
VIN
EN 2V/Div
OUT
OUT
PG 5V/Div
I
L
= 5V, EN = V IN ,
1A/Div
1V/Div
1V/Div
May 17, 2012
FN7812.2