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特性
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Integrated N-Channel MOSFET
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150-mA Output Current Capability
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Ultra-Fast Transient Response
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No Loop Compensation Required
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VIN Feed-Forward Provides Constant Operating Frequency
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Switching Frequency Can Exceed 600 kHz
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Highly Efficient Operation
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2% Accurate 2.5-V Feedback From
–40°C to +125°C -
Internal Startup Regulator
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Intelligent Current Limit Protection
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External Shutdown Control
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Thermal Shutdown
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8-Pin VSSOP and Thermally-Enhanced 8-Pin WSON Packages
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描述
The LM5009 step-down switching regulator features all of the functions needed to implement a low-cost, efficient, buck bias regulator. This device is capable of driving a 150-mA load current from a 9.5-V to 95-V input source. The switching frequency can exceed 600 kHz, depending on the input and output voltages. The output voltage can be set from 2.5 V to 85 V. This high-voltage regulator contains an N-channel buck switch and an internal startup regulator. The device is easy to implement and is provided in 8-pin VSSOP and thermally-enhanced, 8-pin WSON packages. The LM5009 is a well-suited alternative to a high-voltage monolithic or discrete linear solution wher the power loss becomes unacceptable.
