Microchip MCP16365

Description

The MCP16364/5/6 family of devices are highly integrated, high-efficiency, fixed-frequency, step-down DC-DCconverters in a compact 8-lead 3 mm x 3 mm VDFN package that operates from input voltage sources upto 48V. Integrated features include a high-side switch, fixed-frequency Peak Current Mode Control, InternalCompensation, Power Good, Peak Current Limit and Overtemperature Protection. The MCP16364/5/6 providesall the active functions for local DC-DC conversion, with fast transient response and accurate regulation.High efficiency conversion is achieved by integrating the current-limited, high-speed N-Channel MOSFETand associated drive circuitry. High switching frequency minimizes the size of external filtering componentsresulting in a small size solution.The MCP16364/5/6 can supply 1A of continuous current while regulating the output voltage from 2.0V to24V. An integrated, high-performance peak current mode control architecture keeps the output voltage tightlyregulated, even during input voltage steps and output current transient conditions that are common in powersystems.The MCP16364 is capable of running in PFM/PWM mode. It switches in PFM mode for light load conditions andfor large step-down conversion ratios. This results in a higher efficiency over all load ranges.

Features

• Input Voltage Range: 4.0V (After Start-up) to 48V
• Adjustable Output Voltage Range: 2.0V to 24V
• Integrated N-Channel Buck Switch: 500 mΩ
• 1A Output Current
• 2.2 MHz Fixed Switching Frequency
• Shutdown Current: 3 µA Typical
• Quiescent Current: 18 µA Typical (Not Switching)
• Device Selectable Switching Mode:– Automatic Pulse Frequency Modulation/Pulse Width Modulation (PFM/PWM) Operation - MCP1636448V Input, 1A Output, 2.2 MHz Switching Frequency,Integrated Switch Step-Down RegulatorMCP16364/5/6MCP16364/5/6Preliminary Data Sheet© 2025 Microchip Technology Inc. and its subsidiariesDS20006969A - 2– PWM only Mode of Operation - MCP16365– PWM only Mode of Operation with Switching Frequency Dithering for EMI constrained applications -MCP16366
• 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
• Available Package: 8-lead 3 mm x 3 mm Wettable Flanks VDFN, see Package
• AEC-Q100 Automotive Qualified, see Product Identification System

Typical applications

• Autmotive DC/DC; 24V Industrial Input DC/DC

More information

• Datasheet
• IC product information