MC34167: 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
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Applications- Digital TV (LCD, PDP)
- Efficient system pre-regulator for linear voltage regulators
- Battery chargers
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Data Sheets (1)
Package Drawings (4)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| MC34167D2TG | Active | Pb-free
Halide free | D2PAK-5 | 936A-02 | 1 | Tube | 50 | $1.9733 |
| MC34167D2TR4G | Active | Pb-free
Halide free | D2PAK-5 | 936A-02 | 1 | Tape and Reel | 800 | $1.9733 |
| MC34167TG | Active | Pb-free
Halide free | TO-220-5 | 314D-04 | NA | Tube | 50 | $1.8933 |
| MC34167THG | Last Shipments | Pb-free
Halide free | TO-220-5 | 314A-03 | NA | Tube | 50 | |
| MC34167TVG | Active | Pb-free
Halide free | TO-220-5 | 314B-05 | NA | Tube | 50 | $1.48 |
Specifications
| Product | Topology | Control Mode | VCC Min (V) | VCC Max (V) | VO Typ (V) | IO Typ (A) | Efficiency (%) | fSW Typ (kHz) |
|---|
| MC34167D2TG | Step-Down | Voltage Mode | 7.5 | 40 | 5.0 to 40 | 5 | 80 | 72 |
| MC34167D2TR4G | Step-Down | Voltage Mode | 7.5 | 40 | 5.0 to 40 | 5 | 80 | 72 |
| MC34167TG | Step-Down | Voltage Mode | 7.5 | 40 | 5.0 to 40 | 5 | 80 | 72 |
| MC34167TVG | Step-Down | Voltage Mode | 7.5 | 40 | 5.0 to 40 | 5 | 80 | 72 |
