ISL6227EVAL1 Intersil, ISL6227EVAL1 Datasheet - Page 8
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ISL6227EVAL1
Manufacturer Part Number
ISL6227EVAL1
Description
EVALUATION BOARD 1 ISL6227
Manufacturer
Intersil
Specifications of ISL6227EVAL1
Main Purpose
Special Purpose DC/DC, DDR Memory Supply
Outputs And Type
2, Non-Isolated
Voltage - Output
0.9 ~ 5.5V
Voltage - Input
5 ~ 24V
Regulator Topology
Buck
Frequency - Switching
300kHz
Board Type
Fully Populated
Utilized Ic / Part
ISL6227
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Typical Operation Performance
FIGURE 19. OVERCURRENT PROTECTION AT CHANNEL 1
VPHASE1
SOFT1
Vphase1
SOFT1
VO1
PG1
VO1
FIGURE 21. MODE TRANSITION OF HYS
ILO1
Vo2
EN1
EN1
PG1
Vo1
VO1
PG1
PG1
VO2
ILO1
Vo1
VO2
Ilo1
Vo1
Vo2
Ilo1
FIGURE 23. NORMAL SHUTDOWN, I
8
OUT
→
(Continued)
= 1.5A
_PWM
ISL6227
FIGURE 20. SHORT-CIRCUIT PROTECTION AT CHANNEL 1
Vphase2
VPHASE2
VTT
OCSET
VDDQ
VCC
OCSET
ILO1
VDDQ
VO1
VO2
VO1
Vo1
PG1
FIGURE 22. MODE TRANSITION OF PWM
VTT
PG1
Vo2
VCC
Vo1
Ilo1
ILO2
Ilo2
Vo2
VO2
FIGURE 24. V
CC
POWER-UP IN DDR MODE
→
HYS
May 4, 2009
FN9094.7