X80200 Datasheet, PDF (15/16 Pages) Intersil Corporation – Power Supply Swquencer with Power-up System Mnitoring

X80200, X80201, X80202, X80203, X80204
DC-DC
#1
DC-DC
#2
7,8,55-57
V_ID4:ID0
VRM
POWER
SUPPLY
10 _PWRGD
VCORE
53 OUTEN
5 SCL
9 SDA
SMBus
POWER SEQUENCING (TIME BASED MODE)
USING POWER GOOD SIGNALS
PRIMARY
V I/O
PGOOD1
H (OPTIONAL)
M
SYSTEM
COMPONENTS &
BOARD SUPPLIES
I/O SUPPLY
V_ID4:IDO
µP/
ASICs/
FPGA
CORE SUPPLY
OPTION
DELAY
X80200
VFB
VDDH
GATE_H
VDDM GATE_M
REF
GATE_L
SETV
ENS
VDDL
A0
GATEH_EN
A2
READY
GND
SDA SCL
VCORE
3.3V
2.7V
2.5V
2.0V
1.8V
1.25V
0.9V
V I/O Primary
5V
5V
3.3V
2.5V
1.35V
1.25V
NC
PULL UP
TO SET
ADDRESS HIGH
OPTIONAL
FORCED
SEQUENCING
SMBus
FIGURE 15. POWER SEQUENCING OF VRM SUPPLIES
15
FN8154.0