IRU1261CT

IRU1261CT Datasheet

IRU1261

Part	Datasheet
IRU1261CT	IRU1261CT (pdf)

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Data Sheet No. PD94139 IRU1261 DUAL 6A AND 1A LOW DROPOUT POSITIVE FIXED 1.5V AND 2.5V REGULATOR 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 Pentium II Processor Applications 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 provide 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 processor applications. 3.3V Vout1 5 Vin 4 IRU1261 Gnd 3 Vout2 2 Vctrl 1 1261app1-1.3 2.5V / 1A 1.5V / 6A Figure 1 - Typical application of IRU1261 in a Pentium II processor application PACKAGE ORDER INFORMATION Tj °C 0 To 150 5-PIN PLASTIC TO-220 T IRU1261CT 5-PIN PLASTIC TO-263 M IRU1261CM 5-PIN PLASTIC Ultra Thin-Pak P IRU1261CP IRU1261 ABSOLUTE MAXIMUM RATINGS Input Voltage Vin 7V Power Dissipation Internally Limited Storage Temperature Range -65°C To 150°C Operating Junction Temperature Range 0°C To 150°C PACKAGE INFORMATION 7-PIN PLASTIC TO-220 T 7-PIN PLASTIC TO-263 M FRONT VIEW 5 4 3 2 1 Vout1 Vin Gnd Vout2 Vctrl FRONT VIEW 5 4 3 2 1 Vout1 Vin Gnd Vout2 Vctrl for 1"sq pad 7-PIN ULTRA THIN-PAK P FRONT VIEW 5 4 3 2 1 Vout1 Vin Gnd Vout2 Vctrl for 1"sq pad ELECTRICAL SPECIFICATIONS Unless otherwise specified, these specifications apply over Cin=1µF, Cout=100µF and Tj=0 to Typical values refer to IFL=6A for output #2 and 1A for output Vctrl=5V, Vin=3.3V.

PDF Datasheet Preview

Data Sheet No. PD94139

IRU1261

DUAL 6A AND 1A LOW DROPOUT POSITIVE FIXED 1.5V AND 2.5V REGULATOR

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

Pentium II Processor Applications

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 provide 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 processor applications.
3.3V

Vout1 5

Vin 4

IRU1261 Gnd 3

Vout2 2

Vctrl 1
1261app1-1.3
2.5V / 1A
1.5V / 6A

Figure 1 - Typical application of IRU1261 in a Pentium II processor application

PACKAGE ORDER INFORMATION

Tj °C 0 To 150
5-PIN PLASTIC TO-220 T IRU1261CT
5-PIN PLASTIC TO-263 M IRU1261CM
5-PIN PLASTIC Ultra Thin-Pak P

IRU1261CP

IRU1261

ABSOLUTE MAXIMUM RATINGS

Input Voltage Vin 7V Power Dissipation Internally Limited Storage Temperature Range -65°C To 150°C Operating Junction Temperature Range 0°C To 150°C

PACKAGE INFORMATION
7-PIN PLASTIC TO-220 T
7-PIN PLASTIC TO-263 M

FRONT VIEW 5 4 3 2 1

Vout1 Vin

Gnd Vout2

Vctrl

FRONT VIEW 5 4 3 2 1

Vout1 Vin Gnd Vout2 Vctrl
for 1"sq pad
7-PIN ULTRA THIN-PAK P

FRONT VIEW 5 4 3 2 1

Vout1 Vin Gnd Vout2 Vctrl
for 1"sq pad

ELECTRICAL SPECIFICATIONS

Unless otherwise specified, these specifications apply over Cin=1µF, Cout=100µF and Tj=0 to Typical values refer to IFL=6A for output #2 and 1A for output Vctrl=5V, Vin=3.3V.

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Datasheet ID: IRU1261CT 639109