The LP64460 is an ultra-low quiescent current synchronous buck converter supporting up to 6A output current with integrated high-side and low-side MOSFETs.
The input quiescent current is less than 10-µA with fixed 3.3V and 5V output. The device operates in fixed frequency PWM operation and transits to PFM operation automatically at light load to achieve higher efficiency. The switching frequency is programmable from 200 kHz to 2.2MHz.
The LP64460 has various fixed output voltage versions to eliminate external feedback resistors and reduces quiescent current. The LP64460 supports both aluminum polymer capacitors and ceramic capacitors without extra compensation components.
The LP64460 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 LP64460 is available in a FC-QFN-14 package.
