优秀DCDC升压.docx

本文格式为Word版，下载可任意编辑优秀DCDC升压 MT3608 2A Step Up Converter FEATURES Integrated 80mΩ Power MOSFET 2V to 24V Input Voltage 1.2MHz Fixed Switching Frequency Internal 4A Switch Current Limit Adjustable Output Voltage Internal Compensation Up to 28V Output Voltage Automatic Pulse Frequency Modulation Mode at Light Loads up to 97% Efficiency Available in a 6-Pin SOT23-6 Package GENERAL DESCRIPTION APPLICATIONS Battery-Powered Equipment Set-Top Boxed LCD Bais Supply DSL and Cable Modems and Routers Networking cards powered from PCI or PCI express slots The MT3608 is a constant frequency, 6-pin SOT23 current mode step-up converter intended for small, low power applications. The MT3608 switches at 1.2MHz and allows the use of tiny, low cost capacitors and inductors 2mm or less in height. Internal soft-start results in small inrush current and extends battery life. The MT3608 features automatic shifting to pulse frequency modulation mode at light loads. The MT3608 includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. The MT3608 is available in a small 6-pin SOT-23 package. TYPICAL APPLICATION Efficiency Efficiency (%) Iout (mA) Figure 2. Efficiency Curve MT3608 ABSOLUTE MAXIMUM RATINGS IN, EN voltages ………..….…… -0.3V to 26V Operating Temperature….... -40C to +85C FB Voltages ................................-0.3V to 6V Junction Temperature ………………...160C SW Voltage ……………………..-0.3V to 30V Storage Temperature Range -65C to 150C Peak SW Sink and Source Current ………4A Lead Temperature (Soldering, 10s) ...+300C PACKAGE/ORDER INFORMATION NC IN EN PIN DESCRIPTION MT3608 ELECTRICAL CHARACTERISTICS Note: 1) Guaranteed by design, not tested. — 4 —。