• S09 DC-DC Automatic Buck-Boost Power Module angled view showing inductors and components
  • Top view of PCB layout for 3V-15V to 3.3V/5V step up and down board
  • Back of S09 module showing voltage selection jumper pads and V8.0 version marking
  • Wiring diagram and dimensions (19mm x 14mm) for S09 power module
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DC-DC Auto Buck-Boost Converter Module (3.3V / 5V Output)

DC-DC Auto Buck-Boost Converter Module (3.3V / 5V Output)

HK$12.00
HK$12.00
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Voltage

Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

Unlock Stable Power for Your DIY Projects

The S09 DC-DC Automatic Buck-Boost Power Module is an essential component for compact electronics. Whether your input voltage is higher, lower, or equal to the output, this intelligent board automatically steps up or steps down the voltage to maintain a stable output. It is perfect for battery-powered applications (like Lithium-ion) where voltage drops as the battery drains.

Key Features:

  • Automatic Regulation: Seamlessly switches between Buck (step-down) and Boost (step-up) modes.
  • Wide Input Range: Supports DC 3V to 15V input, making it compatible with various battery configurations.
  • Selectable Output: Available in fixed 3.3V or 5V output configurations.
  • Compact Design: Ultra-small form factor (19mm x 14mm) fits into the tightest enclosures.
  • High Efficiency: Ideal for extending battery life in portable devices.

Technical Specifications:

  • Model: S09 (V8.0)
  • Input Voltage: 3V - 15V DC
  • Output Voltage: 3.3V or 5V
  • Output Current: Reference value ~0.6A (at high efficiency); max peak depends on input/output differential.
  • Pin Pitch: 2.54mm (Standard breadboard friendly)
  • Dimensions: 19mm x 14mm

Pinout Guide:

  • VIN+ / VIN-: Power Input
  • VOUT+ / VOUT-: Power Output
  • EN: Enable Pin (Optional use for power saving)
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