製品説明
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.
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特長 |
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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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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
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アプリケーション |
- Digital TV (LCD, PDP)
- Efficient system pre-regulator for linear voltage regulators
- Battery chargers
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