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AW3611DNR

A Synchronous Boost Converter with Adjustable Output Voltage

The AW3611 is a Large current, High-efficiency synchronous Boost regulator with adjustable output voltage. The AW3611 use PWM peak current mode control method, in Continuous Conduction Mode (CCM), operate at 2MHz to reduce external device size, save more PCB area. At light load condition, the chip will enter Burst mode automatically to realize high efficiency in all load range. The AW3611 added input peak current limit value adjustable by 1-wire pulse function for Charge banks application, to adjust the maximum load ability. The bulk switch circuit is integrated to isolate the input port and output port, prevent current from V OUT to V IN . AW3611 can adjust the output voltage by applying external resistors to FB pin. Otherwise, FB should be grounded and the V OUT would be set to 5V for default. The AW3611 available in a tiny DFN 8pin package.

Characteristic

●   Input Voltage Range: 2.8V to 4.5V

●   Adjustable Output Voltage: (VIN+0.5V) to 5.5V

●   IOUT≥1.1A at VOUT=5V, VIN≥3.3V (mode 3)

●   Up to 92% Efficiency

●   Light Load Burst Mode

●   Three External Components: 1μH Inductor, Input/Output Capacitors

●   Over Voltage, Short-circuit Protection

●   True Load Disconnect During Shutdown

●   2mm x 2mm, DFN-8pin Package


Datasheet

Application note

Title Type Size Date Download
DS_AW3611_EN_V1.2_A Synchronous Boost Converter with Adjustable Output Voltage.pdf PDF 2.0M 2019-01-11
  • Control Interface
    Current Limit Level
    Max Load Current (A)
    Support Vout Adjustable Via FB
    Vout Range (V)
    Supply Voltage Range (V)
    Package (mm)
  • AW3611DNR

    1-Wire
    3
    1.1
    (VIN+0.5)~6
    2.8-4.5
    WBDFN 2X2-8L
Package form Number of pins Long(mm) Width(mm) Thick(mm) Pin spacing(mm) Heat sink Package drawing
DFN 2.0×2.0×0.55 -8L 8 2.0 2.0 0.55 0.5 Y
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