IRU1260
7
Rev. 1.9
07/03/01
TYPICAL APPLICATION
PENTIUM
ΙΙΙΙ
ΙΙΙΙ
ΙΙ
APPLICATION
Ref Desig Description Qty Part # Manuf
U1 Dual LDO Regulator 1 IRU1260CM IR
C1, C3 Capacitor 2 Elect, 680µF, EEUFA1A681L Panasonic
C2 Capacitor 1 Elect, 220µF, 6.3V, ECAOJFQ221 Panasonic
C4 Capacitor 1 Ceramic, 0.1µF, SMT, 0805 Panasonic
C5 Capacitor 1 Elect,100µF, 6.3V, ECAOJFQ101 Panasonic
R1 Resistor 1 11KΩ, 1%, SMT, 0805 Panasonic
R2, R4 Resistor 2 10.2KΩ, 1%, SMT, 0805 Panasonic
R3 Resistor 1 2.55KΩ, 1%, SMT, 0805 Panasonic
R5 Resistor 1 3Ω, 5%, SMT, 0805 Panasonic
HS1 Heat Sink Use 1" Square Copper Pad area if IOUT2<1.7A &
IOUT1<0.2A. For IOUT2<3A & IOUT1<0.5A, use
IRU1260CT and Thermalloy 6030B
3.3V 2.5V / 1A
1.5V / 6A
C1 R1
R2
R3
R4
C2
C3
IRU1260
1260app7-1.0
5V
C5
U1
C4
R5
Vctrl
Vfb1
Vfb2
Gnd
Vout2
Vin
Vout1
1
2
3
4
5
6
7
Figure 5 - Typical application of IRU1260 in the Pentium ΙΙ design with the 1.5V output
providing for GTL+ termination while 2.5V supplies the clock chip.
Note: Pentium ΙΙ is trademark of Intel Corp.
