IRU1261 Datasheet, PDF (1/8 Pages) International Rectifier – DUAL 6A AND 1A LOW DROPOUT POSITIVE FIXED 1.5V AND 2.5V REGULATOR

Data Sheet No. PD94139
IRU1261
DUAL 6A AND 1A LOW DROPOUT
POSITIVE FIXED 1.5V AND 2.5V REGULATOR
FEATURES
Guaranteed to Provide 1.5V and 2.5V Supplies
with 3.1V Input
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-In Thermal Shutdown
APPLICATIONS
Pentium II^TM Processor Applications
DESCRIPTION
The IRU1261, using a proprietary process, combines a
dual low dropout regulator with fixed outputs of 1.5V and
2.5V in a single package with the 1.5V output having a
minimum of 6A and the 2.5V having a 1A output current
capability. This product is specifically designed to pro-
vide well regulated supplies from 3.3V to generate 1.5V
for GTL+ termination resistor supply and 2.5V clock
supply for the new generation of the Pentium II^TM pro-
cessor applications.
TYPICAL APPLICATION
3.3V
C1
VOUT1 5
VIN 4
IRU1261 ^{Gnd 3}
C2
VOUT2 2
VCTRL 1
5V
R1
2.5V / 1A
C3
1.5V / 6A
C4
Figure 1 - Typical application of IRU1261 in a Pentium II^TM processor application.
Note: Pentium II^TM is trademark of Intel Corp.
PACKAGE ORDER INFORMATION
TJ (°C)
0 To 150
5-PIN PLASTIC
TO-263 (M)
IRU1261CM
5-PIN PLASTIC
Ultra Thin-Pak^TM (P)
IRU1261CP
Rev. 2.0
09/19/02
www.irf.com
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