© Semiconductor Components Industries, LLC, 2006

February, 2006 − Rev. 19

1

Publication Order Number:

NCP500/D

NCP500

150 mA CMOS Low Noise

Low−Dropout Voltage

Regulator

The NCP500 series of fixed output low dropout linear regulators are

designed for portable battery powered applications which require low

noise operation, fast enable response time, and low dropout. The

device achieves its low noise performance without the need of an

external noise bypass capacitor. Each device contains a voltage

reference unit, an error amplifier, a PMOS power transistor, and

resistors for setting output voltage, and current limit and temperature

limit protection circuits.

The NCP500 has been designed to be used with low cost ceramic

capacitors and requires a minimum output capacitor of 1.0

mF.

Features

(BW = 10 Hz to 100 kHz)

Typical Applications

Driver w/

Current

Limit

Thermal

Shutdown

Enable

GND

OFF

ON

1 (3)

3 (1)

5 (4)

2 (2, 5)

Figure 1. Simplified Block Diagram

NOTE: Pin numbers in parenthesis indicate DFN package.

See detailed ordering and shipping information in the package

dimensions section on page 17 of this data sheet.

ORDERING INFORMATION

TSOP−5

SN SUFFIX

CASE 483

1

5

PIN CONNECTIONS AND

MARKING DIAGRAMS

1

3

N/C

2

GND

Enable

4

5

xxx = Specific Device Code

A

= Assembly Location

Y

= Year

W

= Work Week

G

= Pb−Free Package

(Note: Microdot may be in either location)

(Top View)

TSOP−5

1

6

DFN 2x2.2 MM

SQL SUFFIX

CASE 488

1

3

N/C

2

GND

Enable

4

5

6

GND

(Top View)

http://onsemi.com

xxM

*For additional information on our Pb−Free strategy

and soldering details, please download the ON

Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

DFN 2x2.2 mm

xx

= Specific Device Code

M

= Date Code