ISL8014 INTERSIL [Intersil Corporation], ISL8014 Datasheet - Page 10

• Manufacturer Part Number: ISL8014
• Description: 4A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator
• Manufacturer: INTERSIL [Intersil Corporation]

Typical Operating Performance
EN 5V/DIV
V
PG 5V/DIV
LX 2V/DIV
V
IL 1A/DIV
IL 1A/DIV
OUT
OUT
FIGURE 21. MODE TRANSITION DCM TO CCM
0.5V/DIV
FIGURE 25. SOFT-START AT NO LOAD (PFM)
RIPPLE 50mV/DIV
FIGURE 23. LOAD TRANSIENT (PFM)
V
OUT
LX 2V/DIV
IL 1A/DIV
RIPPLE 50mV/DIV
10
(Unless otherwise noted, operating conditions are: T
SYNCH = 0V, L = 1.5µH, C
ISL8014
1
= 2x22µF, C
V
EN 5V/DIV
V
IL 1A/DIV
V
PG 5V/DIV
IL 1A/DIV
PG 5V/DIV
EN 5V/DIV
IL 1A/DIV
OUT
OUT
OUT
FIGURE 24. SOFT-START WITH NO LOAD (PWM)
FIGURE 26. SOFT-START WITH PRE-BIASED 1V
RIPPLE 50mV/DIV
0.5V/DIV
0.5V/DIV
FIGURE 22. LOAD TRANSIENT (PWM)
2
= 2x22µF, I
A
= +25°C, V
OUT
= 0A to 4A)
VIN
= 2.5V to 5.5V, EN = V
.
(Continued)
December 20, 2007
FN6576.1
IN
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