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NCP3163MNR2G

3.4 A, Step-Up/Down/Inverting 50-300 kHz Switching Regulator

ON Semiconductor 

NCP3163, NCV3163

3.4 A, Step-Up/Down/

Inverting 50-300 kHz

Switching Regulator

The NCP3163 Series is a performance enhancement to the popular

MC33163 and MC34163 monolithic DC−DC converters. These

devices consist of an internal temperature compensated reference,

comparator, controlled duty cycle oscillator with an active current

limit circuit, driver and high current output switch. This controller was

specifically designed to be incorporated in step−down, step−up, or

voltage−inverting applications with a minimum number of external

components. The NCP3163 comes in an exposed pad package which

can greatly increase the power dissipation of the built in power switch.

Features

• Output Switch Current in Excess of 3.0 A

• 3.4 A Peak Switch Current

• Frequency is Adjustable from 50 kHz to 300 kHz

• Operation from 2.5 V to 40 V Input

• Externally Adjustable Operating Frequency

• Precision 2% Reference for Accurate Output Voltage Control

• Driver with Bootstrap Capability for Increased Efficiency

• Cycle−by−Cycle Current Limiting

• Internal Thermal Shutdown Protection

• Low Voltage Indicator Output for Direct Microprocessor Interface

• Exposed Pad Power Package

• Low Standby Current

• NCV Prefix for Automotive and Other Applications Requiring Site

and Change Control

• These are Pb−Free Devices

Current

8

- Limit

9

+

Vin + 7

10

Cin

VCC

6 Oscillator

11

5

R

12

Q

Thermal

S

4

13

VCC

3

14

2

+

+

15

-

1

+

+

-

LVI

16

VCC

(Bottom View)

Figure 1. Typical Buck Application Circuit

Vout

CO +

http://onsemi.com

16

1

SOIC−16W

EXPOSED PAD

PW SUFFIX

CASE 751AG

MARKING

DIAGRAMS

16

NCx3163yPW

AWLYYWWG

1

1

18

18

18−LEAD DFN NCx3163y

1

MN SUFFIX AWLYYWW G

CASE 505

G

NCx3163y

A

WL

YY

WW

G or G

= Specific Device Code

x = P or V

y = blank or B

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

(Note: Microdot may be in either location)

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 18 of this data sheet.

*For additional information on our Pb−Free strategy

and soldering details, please download the

ON Semiconductor Soldering and Mounting

Techniques Reference Manual, SOLDERRM/D.

© Semiconductor Components Industries, LLC, 2010

1

April, 2010 − Rev. 7

Publication Order Number:

NCP3163/D

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