MC34167THG

5A,升压/降压/反相型DC/DC变换器

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

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Output Switch Current in Excess of 5.0 A

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Fixed Frequency Oscillator 72 kHz with On-Chip Timing

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Provides 5.05 V Output without External Resistor Divider

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Precision 2% Reference

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0% to 95% Output Duty Cycle

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Cycle-by-Cycle Current Limiting

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Undervoltage Lockout with Hysteresis

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Internal Thermal Shutdown

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Operation from 7.5 V to 40 V

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Standby Mode Reduces Power Supply Current to 36 µA

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Economical 5-Lead TO-220 Package with Two Optional Leadforms

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Also Available in Surface Mount D2 PAK Package

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Moisture Sensitivity Level MSL Equals 1

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Pb-Free Packages are Available