MCP16364-E/Q8B

MCP16364-E/Q8B is a highly integrated, high-efficiency, fixed-frequency, step-down DC-DC converter. Key integrated features include a high-side switch, fixed-frequency peak current mode control, internal compensation, power good indication, peak current limit and overtemperature protection. This device provides all necessary functions for local DC-DC conversion, delivering fast transient response and precise regulation. High efficiency conversion is achieved by integrating the current-limited, high-speed N-channel MOSFET and associated drive circuitry. The high switching frequency minimizes the size of external filtering components, enabling a compact solution. Applications include microcontroller bias supply, 24V industrial input DC-DC conversion, set-top boxes, DSL cable modems, wall cube regulation, SLA battery-powered devices, AC-DC digital control power sources, power meters, medical and health care, and distributed power supplies.

• Integrated N-channel buck switch: 500mohm
• Power good output, undervoltage lockout (UVLO), peak current mode control
• Internal compensation, internal soft-start, internal bootstrap diode
• Cycle-by-cycle peak current limit, overtemperature protection
• PFM/PWM switching mode, fixed 2.2MHz switching frequency
• Quiescent current – shutdown is 3µA typ at VOUT = EN = 0V
• Maximum duty cycle is 87% typical
• Minimum on time is 65ns typical
• 8-lead 3mm x 3mm x 1mm VDFN package
• Extended temperature range from -40°C to +125°C