Microchip MCP16365

Beschreibung

The MCP16364/5/6 family of devices are highly integrated, high-efficiency, fixed-frequency, step-down DC-DC converters in a compact 8-lead 3 mm x 3 mm VDFN package that operates from input voltage sources up to 48V. Integrated features include a high-side switch, fixed-frequency Peak Current Mode Control, Internal Compensation, Power Good, Peak Current Limit and Overtemperature Protection. The MCP16364/5/6 provides all 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 MOSFET and associated drive circuitry. High switching frequency minimizes the size of external filtering components resulting in a small size solution.The MCP16364/5/6 can supply 1A of continuous current while regulating the output voltage from 2.0V to 24V. An integrated, high-performance peak current mode control architecture keeps the output voltage tightly regulated, even during input voltage steps and output current transient conditions that are common in power systems.The MCP16364 is capable of running in PFM/PWM mode. It switches in PFM mode for light load conditions and for large step-down conversion ratios. This results in a higher efficiency over all load ranges.

Eigenschaften

• 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 - MCP16364
• 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

Typische Anwendungen

• AC-DC Digital Control Power Sources, Autmotive DC/DC; 24V Industrial Input DC/DC, Microcontroller Bias Supply, 24V Industrial Input DC-DC Conversion, AC-DC Digital Control Power Sources
• Medical and Health Care

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers