© Semiconductor Components Industries, LLC, 2003

January, 2003 - Rev. 3

1

Publication Order Number:

NCP630/D

NCP630

3.0 A Fast Linear Voltage

Regulators

The NCP630 is a low dropout positive voltage regulator that is

capable of providing a guaranteed output current of 3.0 A with a

maximum dropout voltage of 1.25 V at 3.0 A over temperature. The

fast turn on time allows step changes in loads commonly found in low

voltage microprocessor applications. The NCP630 is currently offered

as an adjustable output version that can be programmed down to 1.2 V

with two external resistors and as a fixed output version at 3.47 V. On

chip trimming adjusts the reference/output voltage to within

"1.5%

accuracy. Internal protection features consist of output current limiting

Features

Applications

Figure 1. Typical Application Circuit for NCP630A

INPUT

NCP630A

ADJ

GND

@ 3 A

+

Co

33

mF

R2

R1

10 k

W

Shutdown

+

68

mF -

R2

+ R1

Vout

1.216

* 1

Figure 2. Typical Application Circuit for NCP630G

INPUT

NCP630G

SENSE

GND

@ 3 A

+

Co

33

mF

Shutdown

+

68

mF -

D2T SUFFIX

CASE 936A

1

5

MARKING

DIAGRAM

xx

AWLYWW

Tab = Ground

Pin 1. Shutdown

3. Ground

5. Adj

xx

= Specific Device Code

A

= Assembly Location

WL = Wafer Lot

Y

= Year

WW = Work Week

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

ORDERING INFORMATION

http://onsemi.com

Tab = Ground

Pin 1. Shutdown

3. Ground

5. Sense

NCP630A

NCP630G