MC33167: Buck / Boost / Inverting Regulator, Switching, 5.0 A

The MC34167, MC33167 series are high performance fixed frequency power Buck Boost Inverting Switching Regulators that contain the primary functions required for dc-dc converters. This series was specifically designed to be incorporated in step-down and voltage-inverting configurations with a minimum number of external components. These devices consist of an internal temperature compensated reference, fixed frequency oscillator with on-chip timing components, latching pulse width modulator for single pulse metering, high gain error amplifier, and a high current output switch. Protective features consist of cycle-by-cycle current limiting, undervoltage lockout, and thermal shutdown. Also included is a low power standby mode that reduces power supply current to 36 µA.

Features
  • Output Switch Current in Excess of 5.0 A
  • Fixed Frequency Oscillator (72 kHz) with On-Chip Timing
  • Provides 5.05 V Output without External Resistor Divider
  • Precision 2% Reference
  • 0% to 95% Output Duty Cycle
  • Cycle-by-Cycle Current Limiting
  • Undervoltage Lockout with Hysteresis
  • Internal Thermal Shutdown
  • Operation from 7.5 V to 40 V
  • Standby Mode Reduces Power Supply Current to 36 µA
  • Economical 5-Lead TO-220 Package with Two Optional Leadforms
  • Also Available in Surface Mount D2 PAK Package
  • Moisture Sensitivity Level (MSL) Equals 1
  • Pb-Free Packages are Available
Applications
  • Digital TV (LCD, PDP)
  • Efficient system pre-regulator for linear voltage regulators
  • Battery chargers
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
5.0 A, Step-Up/Down/Inverting Switching RegulatorsMC34167/D (263.0kB)7
Package Drawings (4)
Document TitleDocument ID/SizeRevision
5 LEAD D2PAK936A-02 (35.0kB)D
TO-220 5 LEAD314D-04 (61.5kB)H
TO-220 5 LEAD (THA5)314A-03 (63.0kB)E
TO-220 5 LEAD OFFSET314B-05 (260.2kB)L
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
MC33167D2TGActivePb-free Halide freeD2PAK-5936A-021Tube50$2.0
MC33167D2TR4GActivePb-free Halide freeD2PAK-5936A-021Tape and Reel800$2.0
MC33167TGActivePb-free Halide freeTO-220-5314D-04NATube50$1.92
MC33167THGActivePb-free Halide freeTO-220-5314A-03NATube50$1.5066
MC33167TVGActivePb-free Halide freeTO-220-5314B-05NATube50$1.5066
Specifications
ProductTopologyControl ModeVCC Min (V)VCC Max (V)VO Typ (V)IO Typ (A)Efficiency (%)fSW Typ (kHz)
MC33167D2TGStep-DownVoltage Mode7.5405.0 to 4058072
MC33167D2TR4GStep-DownVoltage Mode7.5405.0 to 4058072
MC33167TGStep-DownVoltage Mode7.5405.0 to 4058072
MC33167THGStep-DownVoltage Mode7.5405.0 to 4058072
MC33167TVGStep-DownVoltage Mode7.5405.0 to 4058072
5.0 A, Step-Up/Down/Inverting Switching Regulators (263.0kB) MC34167
5 LEAD D2PAK LM2931
TO-220 5 LEAD LM2931
TO-220 5 LEAD (THA5) CS8126
TO-220 5 LEAD OFFSET LM2931