ARD00410

MCP16301/H High-Voltage Input Integrated Switch Step-Down Regulator Features General Description Up to 96% Typical Efficiency The MCP16301/H devices are highly integrated, high-efficiency, fixed-frequency, step-down DC-DC Input Voltage Range: converters in a popular 6-pin SOT-23 package that - 4.0V to 30V (MCP16301) operates from input voltage sources up to 36V. - 4.7V to 36V (MCP16301H) Integrated features include a high-side switch, Output Voltage Range: 2.0V to 15V fixed-frequency peak current mode control, internal 2% Output Voltage Accuracy compensation, peak current limit and overtemperature protection. Minimal external components are Qualification: AEC-Q100 Rev G, Grade 1 necessary to develop a complete step-down DC-DC (-40C to +125C) converter power supply. Integrated N-Channel Buck Switch: 460 m Minimum 600 mA Output Current Over All Input High converter efficiency is achieved by integrating the Voltage Range (See Figure 2-6 for Maximum current-limited, low-resistance, high-speed N-Channel Output Current vs. V ): IN MOSFET and associated drive circuitry. High - up to 1A output current at 3.3V, 5V and 12V switching frequency minimizes the size of external V , SOT-23 package at +25C ambient OUT filtering components, resulting in a small solution size. temperature The MCP16301/H devices can supply 600mA of 500 kHz Fixed Frequency continuous current while regulating the output voltage Adjustable Output Voltage from 2.0V to 15V. An integrated, high-performance Low Device Shutdown Current peak current mode architecture keeps the output voltage tightly regulated, even during input voltage Peak Current Mode Control steps and output current transient conditions that are Internal Compensation common in power systems. Stable with Ceramic Capacitors The EN input is used to turn the device on and off. Internal Soft-Start While turned off, only a few micro amps of current are Cycle-by-Cycle Peak Current Limit consumed from the input for power shedding and load Undervoltage Lockout (UVLO): 3.5V distribution applications. Overtemperature Protection Output voltage is set with an external resistor divider. Available Package: SOT-23-6 The MCP16301/H devices are offered in a space-saving SOT-23-6 surface mount package. Applications Package Type PIC Microcontroller and dsPIC Digital Signal Controller Bias Supply MCP16301/H 24V Industrial Input DC-DC Conversion 6-Lead SOT-23 Set-Top Boxes DSL Cable Modems 1 6 SW BOOST Automotive Wall Cube Regulation V 5 2 GND IN SLA Battery-Powered Devices AC-DC Digital Control Power Source V 3 4 EN FB Power Meters 2 D Package Linear Regulator Replacement -See Figure 5-2 Consumer Medical and Health Care Distributed Power Supplies 2011-2015 Microchip Technology Inc. DS20005004D-page 1MCP16301/H Typical Applications 1N4148 C L BOOST V 1 OUT 100 nF V 15 H IN 3.3V 600 mA Boost 4.7V to 36V SW C V 40V OUT IN Schottky 2x10F C IN Diode 10 F EN 31.6 k V FB GND 10 k 1N4148 C L BOOST V 1 OUT 100 nF V 22 H IN 5.0V 600 mA Boost 6.0V to 36V SW C V 40V OUT IN Schottky 2x10F C IN Diode 10 F 52.3 k EN V FB GND 10 k 100 V = 5.0V OUT 90 80 70 V = 3.3V OUT 60 50 V = 12V IN 40 30 20 10 0 10 100 1000 I (mA) OUT DS20005004D-page 2 2011-2015 Microchip Technology Inc. Efficiency (%)