TI expands its product line of high-voltage load point through the LM5017, a 100 V, 600 mA synchronous step-down regulators with integrated high side and low side MOSFETs. The constant-on-time (COT) control scheme employed in the LM5017 requires no loop compensation, provides excellent transient response, and enables very low step-down ratios. The on-time varies inversely with the input voltage resulting in nearly constant frequency over the input voltage range. A high voltage startup regulator provides bias power for internal operation of the IC and for integrated gate drivers.
A peak current limit circuit protects against overload conditions. The undervoltage lockout (UVLO) circuit allows the input undervoltage threshold and hysteresis to be independently programmed.
The LM5017 is available in LLP-8 and PSOP-8 plastic packages.
• Smart Power Meters
• Telecommunication Systems
• Automotive Electronics
• Isolated Bias Supply
• Wide 9 V to 100 V Input Range
• Integrated 100 V, High and Low Side
• No Schottky Required
• Constant On-time Control
• No Loop Compensation Required
• Ultra-Fast Transient Response
• Nearly Constant Operating Frequency
• Intelligent Peak Current Limit
• Adjustable Output Voltage from 1.225
• Precision 2% Feedback Reference
• Frequency Adjustable to 1 MHz
• Adjustable Undervoltage Lockout (UVLO)
• Remote Shutdown
• Thermal Shutdown
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