SX1308 DC-DC Step-Up Adjustable Power Module

The SX1308 is a compact, high-efficiency DC-DC step-up boost converter module designed for portable electronics and battery-powered applications. This ultra-small power supply module converts low input voltages (2-24V) to higher adjustable output voltages up to 28V with exceptional 95% efficiency. The integrated low-resistance 100mΩ MOSFET enables continuous 2A output current delivery.

Operating at 1.2MHz switching frequency, the module utilizes tiny, low-cost capacitors and inductors, resulting in minimal PCB footprint and component costs. The automatic pulse frequency modulation (PFM) mode at light loads significantly enhances efficiency and extends battery life in portable applications. Internal soft-start circuitry minimizes inrush current, protecting both the module and connected devices.

The onboard 10K multi-turn potentiometer allows precise voltage adjustment without external components. Simply rotate clockwise to increase output voltage and counterclockwise to decrease. Built-in protection features include short-circuit protection, thermal overload protection, under-voltage lockout, and current limiting to prevent damage during fault conditions. The compact 16.3mm × 23mm PCB with convenient through-hole terminals simplifies integration into projects. Perfect for powering LED strips, USB devices from single-cell batteries, boosting Arduino/Raspberry Pi supply voltages, charging applications, mobile power banks, 3G/4G network equipment, digital products, battery-operated devices, and general voltage step-up requirements. Ideal for makers, hobbyists, and electronics engineers.

Specification :

• Controller IC: SX1308
• Input Voltage Range: DC 2V – 24V
• Output Voltage Range: DC 2V – 28V (Adjustable)
• Voltage Difference: Output must be ≥1V higher than input
• Maximum Output Current: 2A (Continuous)
• Switching Frequency: 1.2MHz
• Conversion Efficiency: Up to 95% (highest at higher voltages)
• Internal MOSFET Resistance: 100mΩ (RDS-on)
• Voltage Adjustment: 10K Multi-turn Potentiometer
• Protection Features: Short-circuit, Over-temperature, Current limiting, UVLO
• Operating Temperature: -40°C to +85°C
• Storage Temperature: -55°C to +125°C
• Quiescent Current: Low (PFM mode at light loads)
• PCB Dimensions: Approximately 16.3mm × 23mm
• Terminal Type: Through-hole solder pads (VIN+, GND, OUT+, GND)