This miniature waterproof DC-DC step-down converter module converts an 8V to 23V (nominally 12V) DC input to 5V DC output at up to 3A current (15W maximum). It features a USB-C output connector, compatible with many cell phones and personal electronics. 

Specifications:

• Epoxy sealed waterproof housing (IP68)
• Lightweight, compact, convenient to use and transport
• Non-isolated
• With overload / over-current / over / low voltage protection, stable performance
• Auto recovery
• Input voltage: DC 12V nominal, will operate on any input voltage from 8V to 23V DC
• Maximum input current at 3A output: Approximately 1.25A at 12V input, 1A at 15V input
• Output voltage: 5V
• Maximum output current: 3A
• Maximum Output Power: 15W
• Efficiency: 85-90% typical, 95% max
• Voltage regulation: ±1%
• Load regulation: ± 2%
• Ripple (Full load test): < 150mV
• No-load current: < 100mA
• Operating temperature: -25C - +60C
• Size (L x W x H): 46 * 27 * 14 mm / 1.81" x 1.04" x 0.55" (Length including mounting tabs is 64mm / 2.5")
• Weight: 36g / 1.3oz
• Case color: Black 
• Waterproof rating: IP68
• Input wire length: 13.5cm / 5.3" (approx)
• Output cable length: 33cm / 13" (approx)
• Output cable connector: USB C

Operating Notes:

As with any DC-DC converter, the input DC power supply powering this converter must be capable of providing the maximum power drawn by your load. If the input supply is not capable of providing the power, the converter will fold back the output voltage as necessary. Example: If your load draws 3A at 5V (15W), and the input supply is only capable of providing 12V at 1A (12W), the maximum output voltage the converter will deliver is 4V (12W/3A).

• 1X 8V-23V Input to 5V Output 3A 15W USB-C DC-DC Step Down Converter