IR3087MPBF ,A full featured and flexible way to implement power solutions for the latest high performance CPUs and ASICs. IR3087PBF DATA SHEET TM TM XPHASE PHASE IC WITH OPTI-PHASE , OVP, AND OVERTEMP DETECT DESCRIPT ..
IR3087MTR ,XPHASE Phase IC with Opti-Phase OVP with overtemp detect. The IR3087 Phase IC combined with an IR XPhase TM Control IC provides a full featured and flexible way to implement power solutions for the latest high performance CPUs and ASICs. IR3087 PRELIMINARY DATA SHEET TM TM XPHASE PHASE IC WITH OPTI-PHASE , OVP, AND OVERTEMP DETECT ..
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IS41LV16256-60T , 256K x 16 (4-MBIT) DYNAMIC RAM WITH EDO PAGE MODE
IS41LV16256B-35K , 256K x 16 (4-MBIT) DYNAMIC RAM WITH EDO PAGE MODE
IS41LV16256B-35KL , 256K x 16 (4-MBIT) DYNAMIC RAM WITH EDO PAGE MODE
IS41LV16256B-35T , 256K x 16 (4-MBIT) DYNAMIC RAM WITH EDO PAGE MODE
IS41LV16256B-35TL , 256K x 16 (4-MBIT) DYNAMIC RAM WITH EDO PAGE MODE
IS41LV16257-60T , 256K x 16 (4-MBIT) DYNAMIC RAM WITH FAST PAGE MODE
IR3087MPBF-IR3087MTRPBF
A full featured and flexible way to implement power solutions for the latest high performance CPUs and ASICs.
International
19R Rectifier IR3087PBF
DATA SHEET
XPHASETM PHASE IC WITH OPTI-PHASETM, OVP, AND OVERTEMP DETECT
DESCRIPTION
The IR3087 Phase lC combined with an IR XPhaseTM Control IC provides a full featured and flexible way to
implement power solutions for the latest high performance CPUs and ASICs. The "Control" IC provides
overall system control and interfaces with any number of "Phase" ICs which each drive and monitor a single
phase of a multiphase converter. The XPhaseTM architecture results in a power supply that is smaller, less
expensive, and easier to design while providing higher efficiency than conventional approaches.
The IR3087 with Opti-PhaseTM is intended for applications demanding increased efficiency under medium to
light load conditions. Both gate drivers will drive low at a programmable output current threshold. This
effectively disconnects the phase from the load eliminating power losses due to switching and circulating
currents.
FEATURES
q 2.5A Average Gate Drive Current
. Loss-Less Inductor Current Sense
q Internal Inductor DCR Temperature Compensation
. Programmable Phase Delay
. Programmable Feed-Forward Voltage Mode PWM Ramp
. Sub 100ns Minimum Pulse 1/NMth supports 1MHz per-phase operation
. Current Sense Amplifier drives a single wire Average Current Share Bus
. Current Share Amplifier reduces PWM Ramp slope to ensure sharing between phases
. Body BrakingTM disables Synchronous MOSFET for improved transient response and prevents negative
output voltage at converter turn-off
Opti-PhaseTM reduces the number of phases for improved light to medium load efficiency
OVP comparator with 150ns response
Programmable Phase Over-Temperature Detection
Small thermally enhanced 20L MLPQ package
APPLICATION CIRCUIT
VGATE >
ROP1 ROP2 RCS-
VRHOT =-
-------y _ iccs+
DAC D CCS- RCS+
RBIASIN 20k
BIAS D o as m Ps o
‘3 NI T- “ '" T- BEST
U) ' CBST
< E E m g E
g 'i' g 'i 8 g w-l cm
1 O 15 d _L
. RMPIN+ VCCH -
5 Wire Analog Bus RAMP > 2 RMPIN, IR30 8 7 GATEH 14 l L
From Control IC 3 13
- HOTSET PHASE PGND \MJV < V0
4 VRHOT IC GATEL 12 I E CO =
SHARE > 5 ISHARE I VCCL 11
a s , Cl t
_- ar is m m S vac
EA D RPWMRMP
RPHASE3
PWM R M P
CSCOMPX
Page 1 of 35 1/31/05
International
19R Rectifier IR3087PBF
ORDERING INFORMATION
Device Order Quantity
IR3087MTRPbF 3000 per reel
|R3087MPbF 100 piece strips
ABSOLUTE MAXIMUM RATINGS
Operating Junction Temperature... ... ... ... ... ..150°C
Storage Temperature Range ...................... -65°C to 150°C
ESD Rating ............................................ HBM Class 1C JEDEC standard
PIN g PIN NAME VMAX me lsouRCE ISM
1 RMPIN+ 20V -0.3V 1mA 1mA
2 RMPIN- 20V -0.3V 1mA 1mA
3 HOTSET 20V -0.3V 1mA 1mA
4 VRHOT 20V -0.3V 1mA 30mA
5 ISHARE 20V -0.3V 5mA 5mA
6 SCOMP 20V -0.3V 1mA 1mA
7 EAIN 20V -0.3V 1mA 1mA
8 PWMRMP 20V -0.3V 1mA 20mA
9 LGND n/a n/a 50mA n/a
10 VCC 24V -0.3V n/a 50mA
11 VCCL 27V -0.3V n/a 3A for 100ns,
200mA DC
12 GATEL 27V -0.3V DC, -2V for 3A for 100ns, 3A for 100ns,
100ns 200mA DC 200mA DC
13 PGND 0.3V -0.3V 3A for 100ns, n/a
200mA DC
14 GATEH 30V -0.3V DC, -2V for 3A for 100ns, 3A for 100ns,
100ns 200mA DC 200mA DC
15 VCCH 30V -0.31/ n/a 3A for 100ns,
200mA DC
16 CSIN+ 20V -0.3V 1mA 1mA
17 CSIN- 20V -0.3V 1mA 1mA
18 OPTIPHS 20V -0.3V 1mA 1mA
19 DACIN 20V -0.3V 1mA 1mA
20 BIASIN 20V -0.3V 1mA 1mA
Page 2 of 35 1/31/05
