www.SiliconStandard.com

1 of 11

SS6730

150mA Low-Noise, Low-Dropout Linear Regulator

FEATURES

Output tolerance of

±2%.

Output voltage of 1.8V to 3.3V with 0.1V increments.

Active-low shutdown control.

Very low quiescent current.

Very low dropout voltage.

Miniature package (SOT-23-5 & SOT-23-6W)

Short-circuit and thermal protection.

Very low noise.

APPLICATIONS

Cellular Telephones.

Pagers.

Personal Communication Equipment.

Cordless Telephones.

Portable Instrumentation.

Portable Consumer Equipment.

Radio Control Systems.

Low Voltage Systems.

Battery Powered Systems.

DESCRIPTION

The SS6730 is a low noise, low dropout linear

regulator,

housed

in

a

small

SOT-23-5

or

SOT-23-6W package. The device is in the “ON”

state when the

SHDN pin is set to a logic-high

level. An internal P-MOSFET pass transistor is

used to achieve a low dropout voltage of 90mV at

50mA load current. It offers a high precision output

voltage of

±2%. The very low quiescent current

and low dropout voltage make this device ideal

for battery powered applications. The internal

reverse

bias

protection

eliminates

the

requirement for a reverse voltage protection

diode. The high ripple rejection and low noise

provide

enhanced

performance

for

critical

applications.

An

external

capacitor

can

be

connected to the noise bypass pin to reduce the

output noise level.

TYP ICAL APPLICATION CIRCUIT

1µF

BP

VOUT

SHDN

GND

VIN

SS6730

1µF

0.1µF

V

SHDN

+

+

Low Noise Low Dropout Linear Regulator

1/26/2004 Rev.2.02