US1260

3-1

Rev. 1.9

3/22/99

TYPICAL APPLICATION

TYPICAL APPLICATION

FEATURES

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

APPLICATIONS

Providing a single package solution for GTL+

and High Speed Bus Termination

Dual supply P55C

DESCRIPTION

DESCRIPTION

The US1260 product using a proprietary process com-

bines a dual low drop out adjustable output regulators in

a single package with one output having a minimum of

6A and the other one having a 1A output current capabil-

ity. 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 applications.Other

applications include low cost dual supply for proces-

sors such as Intel P55C

needed for the Core and the I/O supplies from the

5V input.

DUAL 6A AND 1A LOW DROPOUT

POSITIVE ADJUSTABLE REGULATOR

Notes: P55C is trade mark of Intel Corp.

Typical application of US1260 in the Pentium

ΙΙ™ design with the 1.5V output providing for GTL+ termination

while 2.5V supplies the clock chip.

Notes: Pentium

ΙΙ is trade mark of Intel Corp.

3.3V

2.5V / 1A

1.5V / 6A

C1

R1

R2

R3

R4

C2

C3

US1260

1260app7-1.0

Vctrl

Vfb1

Vfb2

Gnd

Vout2

Vin

Vout1

1

2

3

4

5

6

7

5V

C5

U1

C4

R5

PACKAGE ORDER INFORMATION

PACKAGE ORDER INFORMATION

Tj (

7 PIN PLASTIC

7 PIN PLASTIC

7 PIN PLASTIC

TO220(T)

TO263(M)

POWER FLEX(P)

0 TO 150

US1260CT

US1260CM

US1260CP