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MCP16331 数据表(PDF) 1 Page - Microchip Technology |
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MCP16331 数据表(HTML) 1 Page - Microchip Technology |
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1 / 40 page  2014 Microchip Technology Inc. DS20005308B-page 1 MCP16331 Features: • Up to 96% Efficiency • Input Voltage Range: 4.4V to 50V • Output Voltage Range: 2.0V to 24V • 2% Output Voltage Accuracy • Qualification: AEC-Q100 Rev. G, Grade 1(-40oC to 125oC) • Integrated N-Channel Buck Switch: 600 m • Minimum 500 mA Output Current Over All Input Voltage Range (See Figure 2-9 for Maximum Output Current vs. VIN) - Up to 1.2A Output Current at 3.3V and 5V VOUT, VIN>12V, SOT-23 package at 25oC ambient temperature - Up to 0.8A Output Current at 12V VOUT, VIN>18V, SOT-23 package at 25oC ambient temperature •500 kHz Fixed Frequency • Adjustable Output Voltage • Low Device Shutdown Current • Peak Current Mode Control • Internal Compensation • Stable with Ceramic Capacitors • Internal Soft-Start • Internal Pull-Up on EN • Cycle-by-Cycle Peak Current Limit • Undervoltage Lockout (UVLO): 4.1V to Start; 3.6V to Stop • Overtemperature Protection • Available Package: 6-Lead SOT-23, 8-Lead 2x3 TDFN Applications: •PIC® MCU/dsPIC® DSC Microcontroller Bias Supply • 48V, 24V and 12V Industrial Input DC-DC Conversion • Set-Top Boxes • DSL Cable Modems • Automotive • AC/DC Adapters • SLA Battery Powered Devices • AC-DC Digital Control Power Source • Power Meters •Consumer • Medical and Health Care • Distributed Power Supplies General Description: The MCP16331 is a highly integrated, high-efficiency, fixed frequency, step-down DC-DC converter in a popular 6-pin SOT-23 or 8-pin TDFN 2x3 package that operates from input voltage sources up to 50V. Integrated features include a high side switch, fixed frequency Peak Current Mode Control, internal compensation, peak current limit and overtemperature protection. Minimal external components are necessary to develop a complete step-down DC-DC converter power supply. High converter efficiency is achieved by integrating the current-limited, low-resistance, high-speed N-Channel MOSFET and associated drive circuitry. High switching frequency minimizes the size of external filtering components resulting in a small solution size. The MCP16331 can supply 500 mA of continuous current while regulating the output voltage from 2.0V to 24V. An integrated, high-performance peak current mode architecture keeps the output voltage tightly regulated, even during input voltage steps and output current transient conditions that are common in power systems. The EN input is used to turn the device on and off. While off, only a few µA of current are consumed from the input for power shedding and load distribution applications. This pin is internally pulled up, so the device will start even if the EN pin is left floating. Output voltage is set with an external resistor divider. The MCP16331 is offered in a space saving 6-Lead SOT-23 and 8-Lead 2x3 TDFN surface mount package. Package Type MCP16331 6-Lead SOT-23 MCP16331 8-Lead 2x3 TDFN* VFB GND EN 1 2 3 6 4 SW BOOST 5 VIN NC EN NC 1 2 3 4 8 7 6 5 SW EP 9 VIN BOOST VFB GND * Includes Exposed Thermal Pad (EP); see Table 3-1 High-Voltage Input Integrated Switch Step-Down Regulator |
类似零件编号 - MCP16331 |
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类似说明 - MCP16331 |
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