© Semiconductor Components Industries, LLC, 2010

May, 2010 − Rev. 3

1

Publication Order Number:

NCP571/D

NCP571, NCV571

150 mA CMOS Low Iq Low

Output Voltage Regulator

The NCP571 series of fixed output low dropout linear regulators are

designed for handheld communication equipment and portable battery

powered applications which require low quiescent current. The

NCP571 series features an ultra−low quiescent current of 4.0

mA.

Each device contains a voltage reference unit, an error amplifier, a

PMOS power transistor, resistors for setting output voltage, current

limit, and temperature limit protection circuits.

The NCP571 has been designed to be used with low cost ceramic

capacitors and requires a minimum output capacitor of 0.1

mF. The

device is housed in the TSOP−5 or DFN6 surface mount package.

Standard voltage versions are 0.8 V, 0.9 V, 1.0 V and 1.2 V.

Features

and Change Controls

Typical Applications

Driver w/

Current

Limit

Vin

Vout

Thermal

Shutdown

Enable

GND

OFF

ON

1

3

5

2

+

Figure 1. Representative Block Diagram

See detailed ordering and shipping information in the package

dimensions section on page 10 of this data sheet.

ORDERING INFORMATION

TSOP−5

SN SUFFIX

CASE 483

MARKING DIAGRAMS

XXX = Specific Device Code

A

= Assembly Location

Y

= Year

W

= Work Week

M

= Date Code

G

= Pb−Free Package

1

5

http://onsemi.com

XXXAYWG

G

(Note: Microdot may be in either location)

1

6

DFN6

MN SUFFIX

CASE 506BA

XX MG

G

1