5V 5A Voltage Step-Down HW688

5V 5A Voltage Step-Down HW688

HW-688 DC-DC Step-Down Buck Converter Module 9V-36V Input Usb Output Power Supply 25W

     HW688 (HW-688) is a synchronous buck (step-down) voltage converter that converts a supply voltage between DC 9V and 36V into a fixed DC 5V output. It delivers up to 6A (30W) with 9V-24V input, up to 5A (25W) with 24V-32V input and up to 3.5A (18W) with 32V-36V input; with 9V-24V input 5A is recommended for continuous use. Its synchronous rectification design gives high efficiency. It is a compact board ready for direct use where a USB power output is needed in 12V and 24V systems.

     There is a screw terminal block and a DC adapter jack on the input, and a screw terminal block and a USB-A female socket on the output; adapter, battery or wire connections are made without soldering. It has a 100µF 50V electrolytic capacitor on the input, a 470µF 16V electrolytic capacitor on the output and a 33µH power inductor. Overcurrent and overheat protection and a reverse polarity protection diode on the input are available; the board is not damaged by a reversed polarity connection.

     With 63mm x 27mm x 10mm size and 22gr weight it can be placed in car, motorcycle, caravan and boat panels, in solar panel battery systems and inside devices powered by a 24V supply. The output voltage is fixed and needs no adjustment.

Key features:

     Wide input range: With 9V-36V input the same board is used on both 12V and 24V batteries and power supplies; the output is always a fixed 5V.

     High current: 5V 5A (25W) rated output; up to 6A (30W) with 9V-24V input; 5A is recommended for continuous use. The synchronous rectification buck design gives high efficiency.

     Ready USB and terminal output: The 5V output is available both from the USB-A female socket and from the screw terminal; a phone, tablet or 5V device is connected directly.

     Two input options: Power is supplied either from the screw terminal or from the DC adapter jack; no soldering needed.

     Protected design: Overcurrent and overheat protection plus a reverse polarity protection diode on the input.

Features:

• Product type: DC-DC step-down converter with fixed 5V output (synchronous buck)
• Model: HW688 (HW-688)
• Input voltage: DC 9V-36V
• Output voltage: DC 5V fixed (5.2V in seller tables)
• Rated output: 5V 5A, 25W
• Output at 9V-24V input: up to 6A, 30W (5A recommended for continuous use)
• Output at 24V-32V input: up to 5A, 25W
• Output at 32V-36V input: up to 3.5A, 18W
• Rectification: synchronous rectification, high efficiency
• Overcurrent protection: yes
• Overheat protection: yes
• Reverse connection protection: reverse polarity protection diode on the input
• Input connections: 2 pin screw terminal block and DC adapter jack
• Output connections: 2 pin screw terminal block and USB-A female socket
• Capacitors: 100µF 50V on the input, 470µF 16V electrolytic on the output
• Power inductor: 33µH
• Color: Blue printed circuit board
• Dimensions: 63mm x 27mm x 10mm
• Weight: 22gr

Usage information:

• Connect the 9V-36V supply to the input terminal (observing + and - polarity) or to the DC adapter jack.
• Take the 5V output from the USB-A socket or from the output terminal. Both outputs are on the same 5V line; total current must not exceed the limit given for the input voltage.
• Under continuous load close to 5A place the board where air can circulate; choose input and output wire cross sections suitable for the current.

Applications:

•  Car 12V/24V battery systems: USB device power and charging
•  Motorcycle electrical systems: 5V USB output
•  Caravan 12V/24V battery systems: USB charging point
•  Boat 12V/24V electrical systems: 5V power
•  Truck and bus 24V systems: phone charging
•  Solar panel and battery systems: 5V USB regulator
•  Camera, 5V security camera and dash camera power
•  LED strip and 5V LED lighting power
•  Phone and tablet charging
•  Powering a microcontroller or single board computer from a 24V supply
•  Adding a USB / 5V line to 3D printers and CNC systems
   

Precautions:

•  Do not apply power to the output terminals; the board is powered only from the input.
•  Input voltage must not exceed 36V. With 32V-36V input the output current drops to 3.5A.
•  The output is a fixed 5V and cannot be adjusted; it is not used for devices that need another voltage such as 3.3V or 12V.
•  The 5A rating does not mean a phone will charge at 5A; the current drawn from USB is decided by the charging circuit of the connected device.

Package contents:

•  1 pcs 5V 5A Voltage Step-Down HW688

Note: DC adapter, USB cable and connection wires are not included in the package.