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NCP3064
(Rev.:2008)

1.5 A, Step-Up/Down/Inverting Switching Regulator with ON/OFF Function

ON Semiconductor 

NCP3064, NCP3064B,

NCV3064

1.5 A, Step-Up/Down/

Inverting Switching

Regulator with ON/OFF

Function

The NCP3064 Series is a higher frequency upgrade to the popular

MC33063A and MC34063A 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 series was

specifically designed to be incorporated in Step−Down and Step−Up

and Voltage−Inverting applications with a minimum number of

external components. The ON/OFF pin provides a low power

shutdown mode.

Features

• Input Voltage Range from 3.0 V to 40 V

• Logic Level Shutdown Capability

• Low Power Standby Mode, Typical 100 mA

• Output Switch Current to 1.5 A

• Adjustable Output Voltage Range

• 150 kHz Frequency Operation

• Precision 2% Reference

• Internal Thermal Shutdown Protection

• Cycle−by−Cycle Current Limiting

• NCV Prefix for Automotive and Other Applications Requiring Site

and Control Changes

• These are Pb−Free Devices

Applications

• Step−Down, Step−Up and Inverting supply applications

• High Power LED Lighting

• Battery Chargers

ON/OFF

L1

VOUT

Rsense

VCC

CIN

Ç ÇÇ ON/OFF

SWC

Ç ÇÇ Ipk

SWE

Ç ÇÇ VCC

CT

Ç ÇÇ FB

GND

Ç ÇÇ NCP3064

R1

D1

R2

CT

GND

GND

Figure 1. Typical Buck Application Circuit

http://onsemi.com

MARKING

DIAGRAMS

8

1

SOIC−8

D SUFFIX

CASE 751

3064x

ALYWG

G

1

V3064

ALYWG

G

1

8

1

PDIP−8

P, P1 SUFFIX

CASE 626

NCP3064x

AWL

YYWWG

NCV3064

AWL

YYWWG

8 DFN8

MN SUFFIX

1

CASE 488AF

NCP

3064x

ALYWG

G

NCV

3064

ALYWG

G

NCP3064

x

A

L, WL

Y, YY

W, WW

G or G

= Specific Device Code

=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 17 of this data sheet.

© Semiconductor Components Industries, LLC, 2008

1

November, 2008 − Rev. 4

Publication Order Number:

NCP3064/D

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