LM5017MR/NOPB

The LM5017MR/NOPB is a 100V, 600mA synchronous Step-down Regulator 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 high 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 start-up 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 under-voltage lockout (UVLO) circuit allows the input under-voltage threshold and hysteresis to be independently programmed. Other protection features include thermal shutdown and bias supply under-voltage lockout (VCC UVLO).

• Integrated 100V high-side and low-side switches
• 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 1.225V
• Precision 2% feedback reference
• Frequency adjustable to 1MHz
• Adjustable under-voltage lockout (UVLO)
• Remote shutdown
• Thermal shutdown
• Green product and no Sb/Br

Applications

Metering, Communications & Networking, Automotive, Power Management