MC34063A: Buck / Boost / Inverting Regulator, Switching, 1.5 A

The MC34063A Series is a monolithic control circuit containing the primary functions required for dc-to-dc converters. These Buck Boost Inverting Switching Regulators 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 (Buck), Step up (Boost) and Voltage-Inverting applications with a minimum number of external components. Refer to Application Notes AN920A/D and AN954/D for additional design information. The MC33063 is an extended temperature version. The NCV33063 is an extended temp version for automotive.

Features
  • 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
  • 4x4mm DFN package option
  • MC34063A = 0 to +70degC
  • MC33063A = -40 to +85degC
  • MC33063AV / NCV33063A = -40 to +125degC
Benefits
  • Wide input voltage range usable for many applications
  • <100uA Collector Off-State Current
  • Adjustable current limit provides improved protection
  • Large 1.5A peak current capability provides up to ~1A of average current output
  • External resistor divider for various output voltage options
  • Optimize frequency for size or efficiency
  • Accurate system level performance
  • Exposed pad package allows for higher output current and improved thermal performance
Applications
  • For Higher Switching Frequency See NCP3063
  • For Dedicated ENABLE Pin and Higher Switching Frequency See NCP3064
  • Fan Controller
  • DC-DC Power Supply
  • For DFN package see MC33063MNTXG
End Products
  • Cigarette Lighter Adapter (CLA)
  • Power Supply
Design & Development Tools (1)
Document TitleDocument ID/SizeRevisionRevision Date
MC34063 Design WorksheetMC34063 DWS.XLS (283.0kB)0
Package Drawings (2)
Document TitleDocument ID/SizeRevision
8 LEAD PDIP626-05 (35.0kB)P
SOIC-8 Narrow Body751-07 (62.6kB)AK
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
Theory and Applications of the MC34063 and �A78S40 Switching Regulator CircuitsAN920/D (416kB)6
Simulation Models (6)
Document TitleDocument ID/SizeRevisionRevision Date
MC34063A Evaluation Circuit SimulationMC34063A SPICE MODELS (70.0kB)0
MC34063A IsSpice model - 3V Buck BoostMC34063A 3V BUCK BOOST (79.0kB)0
MC34063A IsSpice model - BoostMC34063A BOOST (70.0kB)0
MC34063A IsSpice model - BuckMC34063A BUCK (66.0kB)0
MC34063A ORCAD MODELSMC34063A ORCAD MODELS (26.0kB)0
MC34063A SPICE MODELMC34063A SPICE MODEL (70.0kB)0
Evaluation Board Documents (32)
Document TitleDocument ID/SizeRevisionRevision Date
MC34063LBBGEVB Bill of Materials ROHS CompliantMC34063LBBGEVB_BOM_ROHS.PDF (589.0kB)0
MC34063LBBGEVB Gerber Layout Files (Zip Format)MC34063LBBGEVB_GERBER.ZIP (212.0kB)1
MC34063LBBGEVB SchematicMC34063LBBGEVB_SCHEMATIC.PDF (1595.0kB)1
MC34063LBBGEVB Test ProcedureMC34063LBBGEVB_TEST_PROCEDURE.PDF (651.0kB)1
MC34063LBGEVB Bill of Materials ROHS CompliantMC34063LBGEVB_BOM_ROHS.PDF (136.0kB)1
MC34063LBGEVB Gerber Layout Files (Zip Format)MC34063LBGEVB_GERBER.ZIP (212.0kB)1
MC34063LBGEVB SchematicMC34063LBGEVB_SCHEMATIC.PDF (67.0kB)1
MC34063LBGEVB Test ProcedureMC34063LBGEVB_TEST_PROCEDURE.PDF (63.0kB)1
MC34063LBKEV Bill of Material (ROHS Compliant)MC34063LBKEVB_BOM_ROHS.PDF (40kB)1
MC34063LBKEVB Gerber Layout Files (Zip Format)MC34063LBKEVB_GERBER.ZIP (212.0kB)1
MC34063LBKEVB SchematicMC34063LBKEVB_SCHEMATIC.PDF (68.0kB)1
MC34063LBKEVB Test ProcedureMC34063LBKEVB_TEST_PROCEDURE.PDF (68.0kB)1
MC34063LINVEVB Bill of Materials ROHS CompliantMC34063LINVEVB_BOM_ROHS.PDF (55.0kB)0
MC34063LINVEVB Gerber Layout Files (Zip Format)MC34063LINVEVB_GERBER.ZIP (212.0kB)1
MC34063LINVEVB SchematicMC34063LINVEVB_SCHEMATIC.PDF (68.0kB)1
MC34063LINVEVB Test ProcedureMC34063LINVEVB_TEST_PROCEDURE.PDF (68.0kB)1
MC34063SMDBBGEVB Bill of Materials ROHS CompliantMC34063SMDBBGEVB_BOM_ROHS.PDF (62.0kB)0
MC34063SMDBBGEVB Gerber Layout Files (Zip Format)MC34063SMDBBGEVB_GERBER.ZIP (212.0kB)1
MC34063SMDBBGEVB SchematicMC34063SMDBBGEVB_SCHEMATIC.PDF (82.0kB)0
MC34063SMDBBGEVB Test ProcedureMC34063SMDBBGEVB_TEST_PROCEDURE.PDF (104.0kB)1
MC34063SMDBGEVB Bill of Materials ROHS CompliantMC34063SMDBGEVB_BOM_ROHS.PDF (58.0kB)0
MC34063SMDBGEVB Gerber Layout Files (Zip Format)MC34063SMDBGEVB_GERBER.ZIP (212.0kB)1
MC34063SMDBGEVB SchematicMC34063SMDBGEVB_SCHEMATIC.PDF (67.0kB)1
MC34063SMDBGEVB Test ProcedureMC34063SMDBGEVB_TEST_PROCEDURE.PDF (68.0kB)1
MC34063SMDBKGEVB Bill of Materials ROHS CompliantMC34063SMDBKGEVB_BOM_ROHS.PDF (79.0kB)0
MC34063SMDBKGEVB Gerber Layout Files (Zip Format)MC34063SMDBKGEVB_GERBER.ZIP (212.0kB)1
MC34063SMDBKGEVB SchematicMC34063SMDBKGEVB_SCHEMATIC.PDF (514.0kB)1
MC34063SMDBKGEVB Test ProcedureMC34063SMDBKGEVB_TEST_PROCEDURE.PDF (523.0kB)1
MC34063SMDINVEVB Bill of Materials RoHS CompliantMC34063SMDINVEVB_BOM_ROHS.PDF (55.0kB)0
MC34063SMDINVEVB Gerber Layout Files (Zip Format)MC34063SMDINVEVB_GERBER.zip (212.0kB)
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Buck / Boost / Inverting Regulator, Switching, 1.5 AMC34063A/D (1137kB)24
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
MC34063LBBGEVBActivePb-freeSwitching Control Circuit Evaluation Board
MC34063LBGEVBActivePb-freeBoost Regulator Evaluation Board
MC34063LBKEVBActiveLeaded Buck Regulator Evaluation Board
MC34063LINVEVBActiveInverting Regulator Evaluation Board
MC34063SMDBBGEVBActivePb-freeBuck-Boost Regulator Evaluation Board
MC34063SMDBGEVBActivePb-freeSwitching Control Circuit Evaluation Board
MC34063SMDBKGEVBActivePb-freeMC34063 PB-FREE EVAL BOAR
MC34063SMDINVEVBActiveSMD Voltage Inverting Regulator Evaluation Board
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
MC34063ADGActivePb-free Halide freeSOIC-8751-071Tube98$0.3703
MC34063ADR2GActivePb-free Halide freeSOIC-8751-071Tape and Reel2500$0.3703
MC34063AP1GActivePb-free Halide freePDIP-8626-05NATube50$0.396
MCX34063ADR2GConsult Sales OfficePb-free Halide freeSOIC-8751-071Tape and Reel2500
Specifications
ProductTopologyControl ModeVCC Min (V)VCC Max (V)VO Typ (V)IO Typ (A)Efficiency (%)fSW Typ (kHz)
MC34063ADGStep-Up/Step-Down Step-Down Step-UpVoltage Mode3401.25 to 401.5100
MC34063ADR2GStep-Up Step-Up/Step-Down Step-DownVoltage Mode3401.25 to 401.5100
MC34063AP1GStep-Up/Step-Down Step-Down Step-UpVoltage Mode3401.25 to 401.5100
Buck / Boost / Inverting Regulator, Switching, 1.5 A (1137kB) MC34063A
MC34063 Design Worksheet MC34063A
Theory and Applications of the MC34063 and �A78S40 Switching Regulator Circuits NCP3063
MC34063A Evaluation Circuit Simulation MC34063A
MC34063A IsSpice model - 3V Buck Boost MC34063A
MC34063A IsSpice model - Boost MC34063A
MC34063A IsSpice model - Buck MC34063A
MC34063A ORCAD MODELS MC34063A
MC34063A SPICE MODEL MC34063A
MC34063LBBGEVB BOM ROHS MC34063LBBGEVB
MC34063LBBGEVB GERBER MC34063LBBGEVB
MC34063LBBGEVB SCHEMATIC MC34063LBBGEVB
MC34063LBBGEVB TEST PROCEDURE MC34063LBBGEVB
MC34063LBGEVB BOM ROHS MC34063LBGEVB
MC34063LBGEVB GERBER MC34063LBGEVB
MC34063LBGEVB SCHEMATIC MC34063LBGEVB
MC34063LBGEVB TEST PROCEDURE MC34063LBGEVB
MC34063LBKEVB BOM ROHS MC34063LBKEVB
MC34063LBKEVB GERBER MC34063LBKEVB
MC34063LBKEVB SCHEMATIC MC34063LBKEVB
MC34063LBKEVB TEST PROCEDURE MC34063LBKEVB
MC34063LINVEVB BOM ROHS MC34063LINVEVB
MC34063LINVEVB GERBER MC34063LINVEVB
MC34063LINVEVB SCHEMATIC MC34063LINVEVB
MC34063LINVEVB TEST PROCEDURE MC34063LINVEVB
MC34063SMDBBGEVB BOM ROHS MC34063SMDBBGEVB
MC34063SMDBBGEVB GERBER MC34063SMDBBGEVB
MC34063SMDBBGEVB SCHEMATIC MC34063SMDBBGEVB
MC34063SMDBBGEVB TEST PROCEDURE MC34063SMDBBGEVB
MC34063SMDBGEVB BOM ROHS MC34063SMDBGEVB
MC34063SMDBGEVB GERBER MC34063SMDBGEVB
MC34063SMDBGEVB SCHEMATIC MC34063SMDBGEVB
MC34063SMDBGEVB TEST PROCEDURE MC34063SMDBGEVB
MC34063SMDBKGEVB BOM ROHS MC34063SMDBKGEVB
MC34063SMDBKGEVB GERBER MC34063SMDBKGEVB
MC34063SMDBKGEVB SCHEMATIC MC34063SMDBKGEVB
MC34063SMDBKGEVB TEST PROCEDURE MC34063SMDBKGEVB
MC34063SMDINVEVB BOM ROHS MC34063SMDINVEVB
MC34063SMDINVEVB GERBER MC34063SMDINVEVB
MC34063SMDINVEVB SCHEMATIC - 13 MC34063SMDINVEVB
MC34063SMDINVEVB TEST PROCEDURE - 68 MC34063SMDINVEVB
8 LEAD PDIP NE592
SOIC-8 Narrow Body CM1216
NCV33063AV