SC33063A ONSEMI [ON Semiconductor], SC33063A Datasheet

SC33063A

Manufacturer Part Number

SC33063A

Description

1.5 A, Step−Up/Down/ Inverting Switching Regulators

Manufacturer

ONSEMI [ON Semiconductor]

Datasheet

1.SC33063A.pdf (15 pages)

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MC34063A, MC33063A,

SC34063A, SC33063A,

NCV33063A

1.5 A, Step-Up/Down/

Inverting Switching

Regulators

primary functions required for DC−to−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. Refer to Application Notes AN920A/D and AN954/D

for additional design information.

Features

•

August, 2010 − Rev. 23

The MC34063A Series is a monolithic control circuit containing the

Comparator

Operation from 3.0 V to 40 V Input

Low Standby Current

Current Limiting

Output Switch Current to 1.5 A

Output Voltage Adjustable

Frequency Operation to 100 kHz

Precision 2% Reference

Pb−Free Packages are Available

Collector

Inverting

Figure 1. Representative Schematic Diagram

Sense

Drive

Input

This device contains 79 active transistors.

Oscillator C

Comparator

(Bottom View)

S Q

Reference

Regulator

100

1.25 V

Switch

Collector

Switch

Emitter

Timing

Capacitor

GND

See detailed ordering and shipping information in the package

dimensions section on page 12 of this data sheet.

L, WL

Y, YY

W, WW

G or G

ORDERING INFORMATION

http://onsemi.com

P, P1 SUFFIX

CASE 488AF

CASE 751

CASE 626

D SUFFIX

= 3 or 4

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

SOIC−8

PDIP−8

DFN8

Publication Order Number:

DIAGRAMS

MARKING

MC34063A/D

33063AVP

ALYWA

3x063V

ALYWA

3x063AP1

33063

3x063

YYWWG

AWL

Related parts for SC33063A

SC33063A Summary of contents

Page 1

... MC34063A, MC33063A, SC34063A, SC33063A, NCV33063A 1.5 A, Step-Up/Down/ Inverting Switching Regulators The MC34063A Series is a monolithic control circuit containing the primary functions required for DC−to−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− ...

Page 2

... Operating Ambient Temperature Range MC34063A, SC34063A MC33063AV, NCV33063A MC33063A, SC33063A Storage Temperature Range Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability ...

Page 3

ELECTRICAL CHARACTERISTICS Characteristics OSCILLATOR Frequency ( 1.0 nF, T Pin Charge Current ( Discharge Current ( ...

Page 4

V = 5.0 V, Pin Pin 5 = GND 25° TIME (ms FREQUENCY (kHz 0.0 0.5 1.0 1.5 2.0 2.5 3.0 ...

Page 5

L 8 180 OSC 0. 100 + Comp 2.2 k Test Line Regulation Load ...

Page 6

Figure 10. External Current Boost Connections for I 9a. External NPN Switch 8. If the output switch is driven into hard saturation (non−Darlington configuration) at low switch currents (≤ 300 mA) and high ...

Page 7

0. 100 + - 1.2 k Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple With Optional Filter ...

Page 8

100 + - 5 R2 8.2 k Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple With Optional Filter 8 ...

Page 9

Figure 15. Printed Circuit Board and Component Layout (Circuits of Figures 9, 11, 13) INDUCTOR DATA Converter Inductance (mH) Step−Up 170 Step−Down 220 Voltage−Inverting 88 All inductors are wound on Magnetics Inc. 55117 toroidal core. http://onsemi.com 9 Turns/Wire 38 Turns ...

Page 10

Figure 16. Printed Circuit Board for DFN Device http://onsemi.com 10 ...

Page 11

Calculation Step− out ) off sat in(min off off off off t ...

Page 12

... ORDERING INFORMATION Device MC33063AD MC33063ADG MC33063ADR2 MC33063ADR2G SC33063ADR2G MC33063AP1 MC33063AP1G MC33063AVD MC33063AVDG MC33063AVDR2 MC33063AVDR2G NCV33063AVDR2* NCV33063AVDR2G* MC33063AVP MC33063AVPG MC34063AD MC34063ADG MC34063ADR2 MC34063ADR2G SC34063ADR2G MC34063AP1 MC34063AP1G SC34063AP1G MC33063MNTXG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D ...

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SC33063A ONSEMI [ON Semiconductor], SC33063A Datasheet

SC33063A

Related parts for SC33063A

SC33063A Summary of contents

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