Synchronous Step-Down Converter
®
RT8070
4A, 2MHz, Synchronous Step-Down Converter
General Description
The RT8070 is a simple, easy-to-use current mod...
Description
®
RT8070
4A, 2MHz, Synchronous Step-Down Converter
General Description
The RT8070 is a simple, easy-to-use current mode controlled 4A synchronous step-down DC-DC converter with an input supply voltage range from 2.7V to 5.5V. The device built-in an accurate 0.8V reference voltage and integrates low RDS(ON) power MOSFETs to achieve high efficiency in both WDFN-8L 3x3 and SOP-8 (Exposed Pad) packages.
The RT8070 operates in automatic PSM that maintains high efficiency during light load operation. The device features cycle-by-cycle current-limit protection to prevent the device from the catastrophic damage in output short circuit, over-current or inductor saturation. Adjustable softstart function prevents inrush current during start-up. The device also features input under-voltage lockout, output under-voltage protection, and over-temperature protection to provide safe and smooth operation in all operating conditions.
Ordering Information
RT8070 Package Type SP : SOP-8 (Exposed Pad-Option 1) QW : WDFN-8L 3x3 (W-Type) Lead Plating System Z : ECO (Ecological Element with Halogen Free and Pb free)
Note : Richtek products are :
RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Features
Input Voltage Range from 2.7V to 5.5V Integrated 110mΩ and 70mΩ FETs 100% Duty Cycle for Lowest Dropout Power Saving Mode for Light Loads Adjustable Frequency : 200kHz to 2MHz 0.8V Reference A...
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