The LP6455 is a synchronous buck converter supporting up to 5A output current. The LP6455 employs an adaptive constant-on-time (COT) control scheme to achieve fast load transient response. The external components are minimized, requiring only one inductor, two resistors, and two capacitors.
The LP6455 supports both aluminum polymer capacitors and ceramic capacitors without extra compensationcomponents.
The LP6455 integrates PFM (Pulse Frequency Modulation) operation, which helps maintain the system efficiency at light load. The LP6455 also integrates multiple protection functions, i.e., over-current protection (OCP), over-temperature protection (OTP), under-voltage lockout (UVLO), over-voltage protection (OVP)and short circuit protection (SCP).
The LP6455 is available in a small 6-pin DFN2×2-6FC package.
