IRU1260 Datasheet, PDF (1/12 Pages) International Rectifier – DUAL 6A AND 1A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR

Data Sheet No. PD94138
IRU1260
DUAL 6A AND 1A LOW DROPOUT
POSITIVE ADJUSTABLE REGULATOR
FEATURES
Guaranteed <1.3V Dropout at 6A (Output #2)
Guaranteed <0.6V Dropout at 1A (Output #1)
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-In Thermal Shutdown
APPLICATIONS
Providing a Single Package Solution for GTL+ and
High Speed Bus Termination
Dual Supply P55C™ Applications
DESCRIPTION
The IRU1260 uses a proprietary process and combines
a dual low dropout adjustable output regulator in a single
package with one output having a minimum of 6A and
the other one having a 1A output current capability. This
product is specifically designed to provide well regulated
supplies for low voltage ICs such as 3.3V to 1.5V and
2.5V supplies for the GTL+ termination and the new
clock for Pentium II^TM applications. Other applications
include low cost dual supply for processors such as Intel
P55C^TM where 2.8V and 3.3V are needed for the Core
and the I/O supplies from the 5V input.
TYPICAL APPLICATION
3.3V
C1
R1
VOUT1 7
VIN 6
U1
VOUT2 5
IRU1260 ^{Gnd 4}
VFB2 3
VFB1 2
VCTRL 1
R2
C4
R3
R4
R5
C5
2.5V / 1A
C2
1.5V / 6A
C3
5V
Figure 1 - Typical application of IRU1260 in the Pentium II^TM design with the 1.5V output
providing for GTL+ termination while 2.5V supplies the clock chip.
Notes: Pentium II^TM is trademark of Intel Corp.
P55C^TM is trademark of Intel Corp.
PACKAGE ORDER INFORMATION
TJ (°C)
0 To 150
7-PIN PLASTIC
TO-263 (M)
IRU1260CM
7-PIN PLASTIC
Ultra Thin-Pak^TM (P)
IRU1260CP
Rev. 2.1
09/19/02
www.irf.com
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