MC33063ADX - ON SEMICONDUCTOR

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Semiconductor data sheets and/or speciﬁcations can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s

technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA

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June 2008

MC34063A/MC33063A • Rev. 1.0.3

MC34063A / MCC33063A— SMPS Controller

MC34063A / MC33063A

SMPS Controller

Features

 Operation from 3.0 to 40V Input

 Short Circuit Current Limiting

 Low Standby Current

 Output Switch Current of 1.5A Without External

Transistors

 Adjustable Output Voltage

 Frequency of Operation from 100Hz to 100KHz

 Step-up, Step Down, or Inve rting Switching

Regulators

Description

The MC34063A/MC33063A is a monolithic regulator

subsystem intended for a DC to DC converter. The

device contains a temperature-compensated bandgap

reference, a duty cycle control oscillator, driver, and

high-current output switch. It can be used for step-

down, step-up, or inverting switching and series pass

regulators.

8-SOP

8-DI

Ordering Information

Part Number Operating

Temperature Range Eco Status Package

MC34063AP 0 ~ +70°C RoHS 8-DIP

MC34063AD 0 ~ +70°C RoHS 8-SOP

MC33063AP -40 ~ +85°C RoHS 8-DIP

MC33063AD -40 ~ +85°C RoHS 8-SOP

For Fairchild’s defini t i on of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.

MC34063A/MC33063A • Rev. 1.0.3 2

MC34063A / MC33063A — SMPS Controller

Block Diagram

COMP

OSCILLATOR

1.25V

REF

VTG COMPARATOR

INVERTING

INPUT

IVE

COLLECTOR SWITCH

COLLECTO

GND I

SENSE

TIMING

CAPACITOR

(6)

Figure 1. Block Diagram

MC34063A/MC33063A • Rev. 1.0.3 3

MC34063A / MC33063A — SMPS Controller

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be

operable above the recommended operating conditions and stressing the parts to these levels is not recommended.

In addition, extended exposure to stresses above the recommended operating conditions may affect device

reliability. The absolute maximum ratings are stress ratings only.

Symbol Parameter Min. Max. Unit

VCC Supply Voltage 40 V

VI(COMP) Comparator Input Voltage Range -0.3 +40 V

VC(SW) Switch Collector Voltage 40 V

VE(SW) Switch Emitter Voltage 40 V

VCE(SW) Switch Collector to Emitter Voltage 40 V

VC(DR) Driver Collector Voltage 40 V

ISW Switch Current 1.5 A

TSTG Storage Temperature Range -65 +150 °C

SOP 0.8

PD Power Dissipation DIP 1 W

Electrical Characteristics

VCC = 5.0V, TA = 0°C to +70°C for MC34063, TA = -40°C to +85°C for MC33063, unless otherwise specified.

Symbol Parameter Conditions Min. Typ. Max. Units

Oscillator

ICHG Charging Current VCC=5 to 40V, TA=25°C 22 31 42 µA

IDISCHG Discharging Current VCC=5 to 40V, TA=25°C 140 190 260 µA

V(OSC) Oscillator Amplitude TA=25°C 0.5 V

K Discharge-to-Charge Current Ratio V7=VCC, TA=25°C 5.2 6.1 7.5

VSENSE(CL) Current Limit Sense Voltage ICHG=IDISCHG, TA=25°C 250 300 350 mV

Output Switch

VCE(SAT)1 Saturation Voltage 1(1) I

SW=1.0A, VC(driver)=VC(SW) 0.95 1.30 V

VCE(SAT)2 Saturation Voltage 2(1) I

SW=1.0A, VC(driver)=50mA 0.45 0.70 V

GI(DC) DC Current Gain(1) ISW=1.0A,

VCE=5.0V, TA=25°C 50 180

IC(OFF) Collector Off-State Current(1) V

CE=40V, TA=25°C 0.01 100.00 µA

Comparator

VTH Threshold Voltage 1.21 1.24 1.29 V

ΔVTH Threshold Voltage Line Regulation VCC=3 to 40V 2 5 mV

IBIAS Input Bias Current VI=0V 50 400 nA

Total Device

MC34063 4

ICC Supply Current MC33063 VCC=5 to 40V, CT=0.001µF,

V7=VCC, V5>VTH, pin 2=GND 5

Note:

1. Output switch tests are performed under pulsed conditions to minimize power dissipation.

MC34063A/MC33063A • Rev. 1.0.3 4

MC34063A / MC33063A — SMPS Controller

Typical Performance Characteristics

Figure 2. Temperature Drift (VTH) Figure 3. Temperature Drift (IOC)

MC34063A/MC33063A • Rev. 1.0.3 5

MC34063A / MC33063A — SMPS Controller

Physical Dimensions

7° TYP

.430 MAX

[10.92]

A.400

.373 [10.15

9.46 ]

.250±.005 [6.35±0.13]

.036 [0.9 TYP]

.070

.045 [1.78

1.14]

.100

[2.54]

.300

[7.62]

.060 MAX

[1.52]

.310±.010 [7.87±0. 25]

.130 ±.005 [3.3±0.13]

.210 MAX

[5.33]

.140

.125 [3.55

3.17]

.015 MIN

[0.38]

.021

.015 [0.53

0.37]

.010+.005

-.000 [0.254+0.127

-0.000 ]

PIN #1

(.032) [R0.813]

(.092) [Ø2.337]

TOP VIEW

OPTION 1 TOP VI EW

OPTION 2

.001[.025] C

N08EREVG

C. DOES NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

DAMBAR PROTRUSIONS SHALL NOT EXCEED

D. DOES NOT INCLUDE DAMBAR PROTRUSIONS.

B. CON T RO L ING DIMENSION S AR E IN INCHES

A. CONFOR MS TO JE DEC REGISTRATION MS- 001,

MOLD FLASH O R PROTRUSIONS SHALL NOT EXC EED

VARIATIONS BA

E. DIMENSIONING AND TOLERANCING

NOTES:

REFE RENCE DIMENSIONS ARE IN MILLIMETERS

.010 INCHE S OR 0.25M M .

.010 I NCHES OR 0.25MM.

PER ASME Y14.5M-1994.

Figure 4. 8-Lead PDIP, JEDEC MS-001

Pack age drawings are provided as a servic e t o customers c onsidering Fairchild components. Drawi ngs may change in any manner

without notice. P l ease note the revision and/or date on the drawing and contac t a Fairchild Semic onductor representat i ve to verify

or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’ s worldwide terms and conditions, specifically

the warranty therein, which covers Fairchild products.

Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsemi.com/packaging/.

MC34063A/MC33063A • Rev. 1.0.3 6

MC34063A / MC33063A — SMPS Controller

Physical Dimensions

8°

0°

SEE DETAIL A

NOTES: UNLESS OTHERWISE SPECIFIED

A) THIS PACKAGE CONFORMS TO JEDEC

MS-012, VARIATION AA, ISSUE C,

B) ALL DIMENSIONS ARE IN MILLIMETERS.

C) DIME NSIONS DO NOT INCLUDE MOLD

FLASH OR BURRS.

D) LANDPATTERN STANDARD: SOIC127P600X175-8M.

E) DRAWING FILENAME : M08AREV1 3

LAND PATTERN RECOMMENDATION

SEATING PLANE

0.10 C

GAGE PLANE

x 45°

DETAIL A

SCALE: 2:1

PIN ONE

INDICATOR 4

MBA0.25

5.60

0.65

1.75

1.27

6.20

5.80

3.81

4.00

3.80

5.00

4.80

(0.33) 1.27

0.51

0.33

0.25

0.10

1.75 MAX 0.25

0.19

0.36

0.50

0.25

R0.10

0.90

0.406 (1.04)

OPTION A - BEVEL EDGE

OPTION B - NO BEVEL EDGE

Figure 5. 8-Lead, SOIC, JEDEC MS-012, .150 inch Narrow Body

Pack age drawings are provided as a service to customers considering Fairc hi l d components. Drawi ngs may change in any manner

without notice. P l ease note the revi sion and/or date on the drawing and contact a Fairchild Semic onductor representat i ve to verify

or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’ s worldwide terms and conditions, specifically

the warranty therein, which covers Fairchild products.

Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsemi.com/packaging/.

MC34063A/MC33063A • Rev. 1.0.3 7

MC34063A / MC33063A — SMPS Controller

www.onsemi.com

ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.

ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent

coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.

ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,

regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or

specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer

application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not

designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification

in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized

application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and

expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such

claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This

literature is subject to all applicable copyright laws and is not for resale in any manner.

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