LOWPOWER(微源半导体)

The LP6451X is a synchronous buck converter supporting up to 3A output current. The LP6451X 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 LP6451X supports both aluminum polymer capacitors and ceramic capacitors without extra compensation components. The LP6451X integrates PFM (Pulse Frequency Modulation) operation, which helps maintain the system efficiency at light load while the LP6451XF works in FPWM mode to achieve low output covering all load range. The LP6451X also integrates multiple protection functions, i.e., over-current protection (OCP), over-temperature protection (OTP), under-voltage lockout (UVLO), and short circuit protection (SCP). The LP6451X is available in a small 6-pin 1.6mmΧ2.9mm SOT23-6 package.

The LP54331 is a synchronous buck converter supporting up to 3A output current. The LP54331X 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 LP54331 supports both aluminum polymer capacitors and ceramic capacitors without extra compensation components. The LP54331 integrates PFM (Pulse Frequency Modulation) operation, which helps maintain the system efficiency at light load. The LP54331 also integrates multiple protection functions, i.e., over-current protection (OCP), over-temperature protection (OTP), under-voltage lockout (UVLO), output over-voltage protection (OVP),and short circuit protection (SCP). The LP54331X is available in a ESOP-8 package.