Mar2-07 Rev O

SP6265 Dual Low-Dropout CMOS Voltage Regulator

© 2007 Sipex Corporation

Detailed Description

The S

linear regulator designed primarily for battery-powered

applications. These parts are available with preset output

voltage ranging from .8V to .V, and the parts can

supply loads up to 50mA.

The S

pass

transistors.

A

P-Channel

MOSEFT

provides

several advantages over similar designs using PNP

pass transistors, including longer battery life. It requires

no base drive, which reduces quiescent current sig-

nificantly. The S

escent current whether in dropout, light-load, or heavy-

load applications.

The

S

P6265

contains

two

independent

current

limiters, one for each regulator, which monitor and con-

trol

the

pass

transistor’ s

gate

voltage,

limiting

the

guaranteed maximum output current to 80mA minimum.

The output can be shorted to ground for an indefinite time

without damaging the part.

Use a µF capacitor on the S

capacitor on the outputs. Larger input capacitor values

and lower ESRs provide better supply noise rejection

and line transient response.

Thermal -overload protection limits total power dis-

sipation in the

S

ure exceeds T

o

C, the thermal sensor signals the

shut

lowing the IC to cool.

S

P6265A & SP6265B

The S

control input(EN). Drive EN low to shut down both outputs,

reducing supply current to 0.µA. Connect EN to a logic-

high, or IN, for normal operation.

S

The S

have independent shutdown

control inputs (EN and EN2). Drive EN low to shutdown

V

and EN2 low to shut down the entire chip, reducing supply

current to 0.µA. Connect both EN and EN2 to a logic-

high, or IN, for normal operation.

Shutdown

Application information

Capacitor Selection and Regulator Stability

PSRR and Operation from Sources Other

than Batteries

The S

voltages and low quiescent current in battery powered

systems.

Power-supply

rejection

is

5dB

at

low

frequencies. (See the PSRR vs. Frequency graph)

internal P-Channel Pass Transistor

Thermal-Overload Protection

Current Limit

Sipex Corporation

Headquarters and

Sales Office

2 South Hillview Drive

Milpitas, CA 505

TEL: (08) -7500

FAX: (08) 5-7600

ORDeRing inFORMATiOn

Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume

any liability arising out of the application or use of any product or circuit described herein; neither does it convey

any license under its patent rights nor the rights of others.

Solved by

TM

Part Number

Voltage

Pin/

Pin

Trait

Voltage

Accuracy

Operating

Temperature

Range

Package

Marking*

Packing

Quantity

SP6265AEK-L/TR

V=.8V

V2=2.5V

Bypass/

Enable

.5%

-0ºC to +85ºC TSOT-26

XWW

,000

Tape & Reel

SP6265BEK-L/TR

V=.8V

V2=2.8V

Bypass/

Enable

.5%

-0ºC to +85ºC TSOT-26

YWW

,000

Tape & Reel

SP6265FEK-L/TR

V=.8V

V2=2.5V

Dual

Enable

.5%

-0ºC to +85ºC TSOT-26

DAWW

,000

Tape & Reel

SP6265GEK-L/TR

V=.8V

V2=2.8V

Dual

Enable

.5%

-0ºC to +85ºC TSOT-26

EAWW

,000

Tape & Reel

SP6265HEK-L/TR

V=.8V

V2=.V

Dual

Enable

.5%

-0ºC to +85ºC TSOT-26

FAWW

,000

Tape & Reel

SP6265JEK-L/TR

V=2.85V

V2=2.85V

Dual

Enable

.5%

-0ºC to +85ºC TSOT-26

GAWW

,000

Tape & Reel

SP6265KEK-L/TR

V=.0V

V2=.0V

Dual

Enable

.5%

-0ºC to +85ºC TSOT-26

HAWW

,000

Tape & Reel

SP6265LER-L/TR

V=.8V

V2=2.5V

Dual

Enable

.5%

-0ºC to +85ºC

DFN8

6265LEWWX

,000

Tape & Reel

SP6265MER-L/TR

V=.8V

V2=2.8V

Dual

Enable

.5%

-0ºC to +85ºC

DFN8

6265MEWWX

,000

Tape & Reel

*Note: “WW” = Product Work Week, “X” = st Alpha of Lot Number