The LM5018 is a 100-V, 300-mA
synchronous step-down regulator with integrated high-side and low-side MOSFETs. The
constant-on-time (COT) control scheme employed in the LM5018 device 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. Other
protection features include thermal shutdown and bias supply undervoltage
lockout.
The LM5018 device is available in
WSON-8 and SO PowerPAD-8 plastic packages.
The LM5018 is a 100-V, 300-mA
synchronous step-down regulator with integrated high-side and low-side MOSFETs. The
constant-on-time (COT) control scheme employed in the LM5018 device 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. Other
protection features include thermal shutdown and bias supply undervoltage
lockout.
The LM5018 device is available in
WSON-8 and SO PowerPAD-8 plastic packages.