A Synchronous Boost Converter with Adjustable Output Voltage

The AW3615 is a Large current, High-efficiency synchronous Boost regulator with adjustable output voltage. The AW3615 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 AW3615 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 VOUT to VIN. AW3615 can adjust the output voltage by applying external resistors to FB pin. Otherwise, FB should be grounded and the VOUT would be set to 5V for default. The AW3615 available in a tiny CSP 9 bumps package.


●   Input Voltage Range: 2.8V to 4.5V

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

●   IOUT≥1.5A at VOUT=5V, VIN≥3.3V (mode 1)

●   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

●   1.19mm x 1.28mm, WLCSP 9-Bump


Application note

Product name Type Size Download
AW3615CSR PDF 1.9M
  • Control Interface
    Current Limit Level
    Max Load Current (A)
    Vout Range (V)
    Supply Voltage Range (V)
    Package (mm)
  • AW3615CSR

    WLCSP 1.19X1.28-9B
Package form Number of pins Long(mm) Width(mm) Thick(mm) Pin spacing(mm) Heat sink Package drawing
WLCSP 1.28×1.19×0.54-9B 9 1.28 1.19 0.54 0.4 N
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