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Five small green circuit boards with blue potentiometers and LED indicators

KEHIPI

KEHIPI LM2596 DC-DC Buck Converter 3.0-40V to 1.5-35V 5 Pack Power Adapter

SKU CH-MPT9-0V5HW

Five LM2596 step-down modules convert 3.0-40 V input to an adjustable 1.5-35 V output at up to 3 A each

  • Color5PCS
  • Weight0.05 kilograms
  • Adjustable 1.5 V to 35 V output for flexible voltage selection
  • Handles up to 3 A output current for demanding loads
  • Wide 3.0 V to 40 V input range suits varied sources
  • Sanyo solid-state capacitors and 36 u thick boards enhance reliability
  • Five compact 45 x 20 x 14 mm modules in one pack

Five-pack step-down modules

The KEHIPI LM2596 pack contains five identical buck converters that accept a DC input between 3.0 V and 40 V and deliver an adjustable output from 1.5 V to 35 V. Each module is rated for a maximum output current of 3 A and uses SANYO solid-state capacitors on a 36 u thickened circuit board. An on-board LED indicates when the output is active. The units are supplied new and ready for integration into custom power circuits.

Wiring and adjustment needs

Every converter requires a source voltage at least 1.5 V above the desired output because the topology is step-down only. The blue potentiometer sets the output level; the factory defaults to a high voltage so roughly 15 to 20 counter-clockwise turns are needed before the voltage begins to fall. A multimeter is essential during this calibration. The compact 45 by 20 by 14 mm footprint leaves ample space on a protoboard or inside a small enclosure.

Thermal and power behaviour

Under normal loads the LM2596 silicon runs warm but stays within its design limits without forced airflow. The high-Q inductance and solid-state capacitors keep ripple low and efficiency high across the adjustment range. No fan or heatsink is included, so sustained operation near the 3 A ceiling benefits from a modest copper pour or small clip-on heatsink. Quiescent draw is minimal, leaving most of the input power available to the load.

Highlights

  • Adjustable 1.5 V to 35 V output for flexible voltage selection
  • Handles up to 3 A output current for demanding loads
  • Wide 3.0 V to 40 V input range suits varied sources
  • Sanyo solid-state capacitors and 36 u thick boards enhance reliability
  • Five compact 45 x 20 x 14 mm modules in one pack

Specifications

BrandAITRIP
ModelLM2596
Part NumberLM2596
Color5PCS
Weight0.05 kilograms

Questions about this item

What input-voltage headroom does the LM2596 module require to maintain regulation?

The input must be at least 1.5 V higher than the set output voltage; the module cannot boost.

How hot do the SANYO solid-state capacitors and 36 u thickening board get during continuous 3 A operation?

The board uses high-Q inductance and solid-state capacitors rated for sustained loads; an LED indicator shows output status.

What tools are needed to set the output voltage on each of the five modules?

A DC power source within 3.0–40 V and a multimeter are required; adjust the blue potentiometer 15–20 turns counter-clockwise from the factory high setting.

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