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RT8003

600mA, 2MHz, High-Efficiency Synchronous Buck PWM Converter

RT8003
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The RT8003 is a high-efficiency synchronous buck PWM converter with integrated P-Channel and N-Channel power MOSFET switches. Capable of delivering 600mA output current over a wide input voltage range of 2.4V to 5.5V, the RT8003 is ideally suited for portable applications powered by a single Li-Ion battery or by 3-cell NiMH/NiCd batteries. The device operates at 2MHz PWM switching fixed frequency, can use smaller CIN, COUT capacitor and inductor.

The RT8003 integrates two low RDS(ON) 230mΩ and 180mΩ of high and low side switching MOSFETs to reduce board space, as only resistors and capacitors along with one inductor are required externally for operation. The RT8003 has adjustable output range down to 0.5V. The other features include internal soft-start, chip enable, over temperature and over current protections. It is available in a space-saving VDFN-10L 3x3 package.

應用

  • Battery-Powered Equipments
  • Low Power CPU and DSP Supplies
  • Digital Cameras and Hard Disks
  • Protable Instruments and Notebook Computers
  • Celluar Phones, PDAs, and Handheld PCs
  • USB-Based DSL Modems and Other Network Interface
    Cards

主要規格

關鍵特性

  • 2.4V to 5.5V Input Voltage Range

  • Adjustable Output from 0.5V to VIN

  • Guaranteed 600mA Output Current

  • Accurate Reference : 0.5V (± 1.5%)

  • Up to 90% Conversion Efficiency

  • Typical Quiescent Current : 200μA

  • Integrated Low RDS(ON) High- and Low Side Power
    MOSFET Switches : 230mΩ and 180mΩ

  • Current Mode PWM Operation

  • Fixed Frequency : 2MHz

  • 100% Maximum Duty Cycle for Lowest Dropout

  • Internal Soft-Start

  • No Schottky Diode Required

  • Over Temperature and Over Current Protection

  • Small 10-Lead VDFN 3x3 Package

  • RoHS Compliant and 100% Lead (Pb)-Free

Datasheet

DS8003-08.pdf

Videos

如何使用簡單工具對電源轉換器的穩定性進行測試評估?

Datasheet

DS8003-08.pdf

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