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
●Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
