MP2143DJ 降压型DCDC转换芯片 3A 5.5V 1.2MHz

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MP2143DJ 降压型DCDC转换芯片 3A, 5.5V, 1.2MHz

DESCRIPTION The MP2143 is a monolithic, step-down, switchmode converter with internal power MOSFETs. It can achieve up to 3A continuous output current from a 2.5V–to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V. Constant-on-time control provides fast transient response and eases loop stabilization. Faultcondition protections include cycle-by-cycle current limiting and thermal shutdown. The MP2143 is available in small TSOT23-8 package and requires only a minimal number of readily-available standard external components. The MP2143 is ideal for a wide range of applications including high-performance DSPs, FPGAs, smartphones, portable instruments, and DVD drivers. FEATURES  Wide 2.5V-to-5.5V Operating Input Range  Output Voltage as Low as 0.6V  100% Duty Cycle in Dropout  Up to 3A Output Current  Low IQ: 40µA  80mΩ and 40mΩ Internal Power MOSFET Switches  Default 1.2MHz Switching Frequency  EN and Power-Good for Power Sequencing  Cycle-by-Cycle Over-Current Protection  Auto Discharge at Power Off  Short-Circuit Protect with Hiccup Mode  Stable with Low-ESR Output Ceramic Capacitors  Available in a TSOT23-8 Package APPLICATIONS  Low Voltage I/O System Power  Handheld/Battery-powered Systems  Wireless/Networking Cards All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc