© Semiconductor Components Industries, LLC, 2015

April, 2017 − Rev. 1

1

Publication Order Number:

NCV47721/D

NCV47721

3.3 V to 20 V Adjustable LDO

with Adjustable Current Limit

and Diagnostic Features

The NCV47721 LDO regulator with 200 mA output current is

designed for use in harsh automotive environments. The device has a

high peak input voltage tolerance and reverse input voltage, reverse

bias, overcurrent and overtemperature protections. The integrated

current sense feature (adjustable by resistor connected to CSO pin)

provides diagnosis and system protection functionality. The CSO pin

output current creates voltage drop across CSO resistor which is

proportional to output current. Extended diagnostic features in OFF

state are also available and controlled by dedicated input and output

pins.

Features

Compliant

Typical Applications

Figure 1. Application Schematic

GND

CSO

EN

1 µF

10 mF

NCV47721

1 µF

DE

EF

Diagnostic Enable Input

Error Flag Output (Open Collector)

ADJ

To A /D

www.onsemi.com

MARKING

DIAGRAM

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 14 of this data sheet.

TSSOP−14

Exposed Pad

CASE 948AW

NCV4

7721

ALYW

G

G

1

14

1

14

47721

= Specific Device Code

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb−Free Package

(Note: Microdot may be in either location)