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| ISL62881_14 Datasheet, PDF (8/35 Pages) Intersil Corporation – Single-Phase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs | |||
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ISL62881, ISL62881B
Gate Driver Timing Diagram
PWM
UGATE
tLGFUGR
tRU
tFU
1V
LGATE
1V
tFL
tRL
tUGFLGR
Simplified Application Circuits
V+5 V+5 VIN
R BIAS
VDD VCCP VIN
RBIAS
PGOOD
CLK_EN#
VID<0:6>
DPRSLPVR
VR_ON
RDROOP
PGOOD
CLK_EN#
VIDS
DPRSLPVR
VR_ON
VW
ISL62881
RFSET
BOOT
UGATE
COMP
FB
PHASE
LGATE
VSSP
VSEN
IS U M +
V IN
L
VO
RSUM
VCCSENSE
VSSSENSE
R IMON
IM O N
RIS
RTN
CIS
IM O N
IS U M -
(BOTTOM PAD)
VSS
RN
CN °C
RI
FIGURE 1. ISL62881 TYPICAL APPLICATION CIRCUIT USING DCR SENSING
8
FN6924.3
June 16, 2011
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