© Semiconductor Components Industries, LLC, 2006

February, 2006 − Rev. 10

1

Publication Order Number:

NCP511/D

NCP511

150 mA CMOS Low Iq

Low−Dropout Voltage

Regulator

The NCP511 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

NCP511 series features an ultra−low quiescent current of 40

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 NCP511 has been designed to be used with low cost ceramic

capacitors and requires a minimum output capacitor of 1.0

mF. The

device is housed in the micro−miniature TSOP−5 surface mount

package. Standard voltage versions are 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V,

3.0 V, 3.3 V, and 5.0 V. Other voltages are available in 100 mV steps.

Features

Typical Applications

Driver w/

Current

Limit

Thermal

Shutdown

Enable

GND

OFF

ON

1

3

5

2

Figure 1. Representative Block Diagram

This device contains 82 active transistors

See detailed ordering and shipping information in the package

dimensions section on page 10 of this data sheet.

ORDERING INFORMATION

TSOP−5

(SOT23−5, SC59−5)

SN SUFFIX

CASE 483

1

5

PIN CONNECTIONS AND

MARKING DIAGRAM

1

3

N/C

2

GND

Enable

4

5

(Top View)

http://onsemi.com

xxx = Specific Device Code

A

= Assembly Location

Y

= Year

W

= Work Week

G

= Pb−Free Package

(Note: Microdot may be in either location)