© Semiconductor Components Industries, LLC, 2010

May, 2010 − Rev. 15

1

Publication Order Number:

NCV51411/D

NCV51411

1.5 A, 260 kHz, Low Voltage

Buck Regulator with

Synchronization Capability

The NCV51411 is a 1.5 A buck regulator IC operating at a

t control

architecture to provide unmatched transient response, the best overall

regulation and the simplest loop compensation for today’s high−speed

logic. The NCV51411 accommodates input voltages from 4.5 V to

40 V and contains synchronization circuitry.

The on−chip NPN transistor is capable of providing a minimum of

1.5 A of output current, and is biased by an external “boost” capacitor

to ensure saturation, thus minimizing on−chip power dissipation.

Protection circuitry includes thermal shutdown, cycle−by−cycle

current limiting and frequency foldback. The NCV51411 is

functionally pin−compatible with the LT1375.

Features

Regulation and Simplified Design

Reduces Short Circuit Power Dissipation

Efficiency

and Change Controls

SO−8

D SUFFIX

CASE 751

1

8

MARKING

DIAGRAMS

http://onsemi.com

SO−16W EP

PW SUFFIX

CASE 751AG

1

16

NCV51411

AWLYYWWG

1

16

51411

ALYWE

G

1

8

18−LEAD DFN

MN SUFFIX

CASE 505

1

NCV51411

AWLYYWW G

G

118

18

A

= Assembly Location

L, WL

= Wafer Lot

Y, YY

= Year

W, WW = Work Week

E

= Automotive Grade

G or G

= Pb−Free Package

(Note: Microdot may be in either location)

See detailed ordering and shipping information in the package

dimensions section on page 13 of this data sheet.

ORDERING INFORMATION