US1260CM 参数 Datasheet PDF下载

US1260

TYPICAL APPLICATION

RAMBUS APPLICATION

5V

2.5V

C2

Vout1

C1

R1

U1

Vin

Vout2

US1260

Gnd

Vfb2

Vfb1

Vctrl

7

6

5

4

3

2

1

R2

R3

C3

R4

3.3V

1260app6-1.0

Figure 5- Typical application of US1260 in the Rambus™ design with the 2.5V output providing for memory

termination while 3.3V supplies the on board logic.

Notes:Rambus is trade mark of Rambus Corp.

Ref Desig

U1

C1,C2,C3

R1

R2,R4

R3

HS1

Description

Qty Part #

Manuf

Dual LDO Regulator 1

US1260CM

Unisem

Capacitor

3

Elect,220uF,6.3V,ECAOJFQ221 Panasonic

Resistor

1

11 kΩ , 1%, SMT , 0805

Panasonic

Resistor

2

10.2 kΩ , 1%, SMT , 0805

Panasonic

Resistor

1

17.8 kΩ , 1%, SMT , 0805

Panasonic

Heat Sink

1" Square Copper Pad area if Iout2<1.2A & Iout1<0.5A

For Iout2<3A & Iout1<0.5A Use Thermalloy 6030B

3-8

Rev. 1.9

3/22/99