© Semiconductor Components Industries, LLC, 2008

April, 2008 - Rev. 1

1

Publication Order Number:

NCP3985/D

NCP3985

Micropower, 150 mA

Low-Noise, High PSRR,

Ultra-Low Dropout BiCMOS

Voltage Regulator

The NCP3985 is 150 mA LDO that provides the engineer with a

very stable, accurate voltage with low noise and high Power Supply

Rejection Ratio (PSRR) suitable for sensitive applications. In order to

optimize performance for battery operated portable applications, the

NCP3985 employs an advanced BiCMOS process to combine the

benefits of low noise and superior dynamic performance of bipolar

elements with very low ground current consumption at full loads

offered by CMOS.

The NCP3985 is stable with small, low value capacitors and is

available in TSOP-5 package.

Features

- 1.8 V, 2.5 V, 2.75 V, 2.8 V, 3.0 V, 3.3 V

- Contact Factory for Other Voltage Options

Typical Applications

NCP3985

CE

GND

Figure 1. Typical Application Schematic

http://onsemi.com

MARKING

DIAGRAM

See detailed ordering, marking and shipping information in the

package dimensions section on page 9 of this data sheet.

ORDERING INFORMATION

(Note: Microdot may be in either location)

GND

CE

PIN ASSIGNMENT

(Top View)

XXX = Specific Device Code

A

= Assembly Location

Y

= Year

W

= Work Week

G

= Pb-Free Package

1

5

XXXAYW

G

G

1

5

TSOP-5

SN SUFFIX

CASE 483