MC34063A / MC33063A SMPS Controller Features Description Operation from 3.0 to 40V Input 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 stepdown, step-up, or inverting switching and series pass regulators. Adjustable Output Voltage Short Circuit Current Limiting Low Standby Current Output Switch Current of 1.5A Without External Transistors 8-DIP Frequency of Operation from 100Hz to 100KHz Step-up, Step Down, or Inverting Switching Regulators 8-SOP 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 definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com MC34063A / MCC33063A— SMPS Controller June 2008 DRIVE SWITCH COLLECTOR COLLECTOR 8 1.25V REF VTG COMP 1 S 5 Q COMPARATOR INVERTING INPUT Q2 Q1 4 GND I P K SENSE RD 7 R OSCILLATOR TIMIN G 3 C APA CITOR * V CC (6) MC34063A / MC33063A — SMPS Controller Block Diagram 2 Figure 1. Block Diagram © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 2 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 VCC Min. Max. Unit 40 V Supply Voltage VI(COMP) Comparator Input Voltage Range +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 +150 °C PD Power Dissipation -0.3 -65 SOP 0.8 DIP 1 W MC34063A / MC33063A — SMPS Controller Absolute Maximum Ratings 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 Discharge-to-Charge Current Ratio V7=VCC, TA=25°C 5.2 6.1 7.5 Current Limit Sense Voltage ICHG=IDISCHG, TA=25°C 250 300 350 mV K VSENSE(CL) 0.5 V Output Switch VCE(SAT)1 VCE(SAT)2 Saturation Voltage 1 (1) ISW =1.0A, VC(driver)=VC(SW) 0.95 1.30 V Saturation Voltage 2 (1) ISW =1.0A, VC(driver)=50mA 0.45 0.70 V 0.01 100.00 µA 1.24 1.29 V ISW =1.0A, VCE=5.0V, TA=25°C (1) GI(DC) DC Current Gain IC(OFF) Collector Off-State Current (1) 50 VCE=40V, TA=25°C 180 Comparator VTH Threshold Voltage 1.21 ΔVTH Threshold Voltage Line Regulation VCC=3 to 40V 2 5 mV IBIAS Input Bias Current VI=0V 50 400 nA Total Device ICC Supply Current MC34063 MC33063 VCC=5 to 40V, CT=0.001µF, V7=VCC, V5>VTH, pin 2=GND 4 5 mA Note: 1. Output switch tests are performed under pulsed conditions to minimize power dissipation. © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 3 MC34063A / MC33063A — SMPS Controller Typical Performance Characteristics Figure 2. Temperature Drift (VTH) © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 Figure 3. Temperature Drift (IOC) www.fairchildsemi.com 4 MC34063A / MC33063A — SMPS Controller Physical Dimensions [ ] .400 10.15 .373 9.46 A .036 [0.9 TYP] (.092) [Ø2.337] (.032) [R0.813] PIN #1 .250±.005 [6.35±0.13] PIN #1 B TOP VIEW OPTION 1 TOP VIEW OPTION 2 [ ] .070 1.78 .045 1.14 .310±.010 [7.87±0.25] .130±.005 [3.3±0.13] .210 MAX [5.33] 7° TYP 7° TYP C .015 MIN [0.38] .140 3.55 .125 3.17 [ ] .021 0.53 .015 0.37 .001[.025] C .300 [7.62] [ ] .100 [2.54] .430 MAX [10.92] .060 MAX [1.52] NOTES: A. CONFORMS TO JEDEC REGISTRATION MS-001, VARIATIONS BA B. CONTROLING DIMENSIONS ARE IN INCHES REFERENCE DIMENSIONS ARE IN MILLIMETERS C. DOES NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCHES OR 0.25MM. D. DOES NOT INCLUDE DAMBAR PROTRUSIONS. DAMBAR PROTRUSIONS SHALL NOT EXCEED .010 INCHES OR 0.25MM. E. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994. [ +0.127 .010+.005 -.000 0.254-0.000 ] N08EREVG Figure 4. 8-Lead PDIP, JEDEC MS-001 Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative 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/. © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 5 5.00 4.80 A 0.65 3.81 5 8 B 6.20 5.80 PIN ONE INDICATOR 1.75 4.00 3.80 1 5.60 4 1.27 (0.33) 0.25 M MC34063A / MC33063A — SMPS Controller Physical Dimensions 1.27 C B A LAND PATTERN RECOMMENDATION SEE DETAIL A 0.25 0.10 1.75 MAX 0.25 0.19 C 0.10 0.51 0.33 0.50 x 45° 0.25 R0.10 C OPTION A - BEVEL EDGE GAGE PLANE R0.10 OPTION B - NO BEVEL EDGE 0.36 NOTES: UNLESS OTHERWISE SPECIFIED 8° 0° 0.90 0.406 A) THIS PACKAGE CONFORMS TO JEDEC MS-012, VARIATION AA, ISSUE C, B) ALL DIMENSIONS ARE IN MILLIMETERS. C) DIMENSIONS DO NOT INCLUDE MOLD FLASH OR BURRS. D) LANDPATTERN STANDARD: SOIC127P600X175-8M. E) DRAWING FILENAME: M08AREV13 SEATING PLANE (1.04) DETAIL A SCALE: 2:1 Figure 5. 8-Lead, SOIC, JEDEC MS-012, .150 inch Narrow Body Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative 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/. © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 6 MC34063A / MC33063A — SMPS Controller © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 7