IRU1260CM

Data Sheet No. PD94138 IRU1260 DUAL 6A AND 1A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR 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 IITM applications. Other applications include low cost dual supply for processors such as Intel P55CTM where 2.8V and 3.3V are needed for the Core and the I/O supplies from the 5V input. 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 TYPICAL APPLICATION 3.3V C1 R1 C2 VOUT1 VIN 2.5V / 1A 7 6 5 4 3 2 R5 C4 R2 U1 VOUT2 Gnd VFB2 VFB1 VCTRL 1.5V / 6A R3 C3 R4 IRU1260 1 C5 5V Figure 1 - Typical application of IRU1260 in the Pentium IITM design with the 1.5V output providing for GTL+ termination while 2.5V supplies the clock chip. Notes: Pentium IITM is trademark of Intel Corp. P55CTM 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-PakTM (P) I...