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What Is the XL6009? Boost (Step-Up) DC-DC Regulator IC

October 28, 2026 4 min read
Quick answer

The XL6009 is a wide-input (~3–32 V), integrated-switch boost (step-up) DC-DC regulator IC. Its small modules step a low voltage up to 12 V/24 V; similar to the MT3608 but typically carries higher switch current. The '4 A' is switch current, not output current; in a boost the deliverable current drops as the output voltage rises. It only steps up (does not step down).

The XL6009 is a wide-input, integrated-switch boost (step-up) DC-DC regulator IC. Its small modules are common in hobby and industry for stepping a low-voltage input up to a higher one. For the concept, see what is a voltage regulator.

What is the XL6009 used for?

Producing a high voltage from a low one (boost), stepping a battery up to 12 V/24 V, LED/sensor supplies. It is a boost solution similar to the MT3608 but typically carries higher switch current (stronger on modules).

Specifications

ParameterValue
TypeIntegrated-switch boost (step-up)
Input~3–32 V
Output~5–35 V (above input)
Switch current~4 A (peak; output current drops with ratio)

Watch out

In a boost converter, the higher the output voltage, the lower the deliverable output current; the "4 A" is switch current, not output current. A boost has a direct path between input and output; it provides no true disconnect/protection. When adjusting the module potentiometer, don't connect a load without measuring the output. It overheats at high current; the inductor/capacitor quality affects efficiency and stability.

Equivalents

  • MT3608: a small boost IC (lower current).
  • SX1308: a similar boost IC.
  • XL6019: a higher-current family member.

Find it in our catalog

Use the XL6009 search.

Frequently Asked Questions

What is the XL6009?+
The XL6009 is a wide-input (~3–32 V), integrated-switch boost (step-up) DC-DC regulator IC. Its small modules step a low voltage up to a higher one such as 12 V/24 V. It is similar to the MT3608 but typically carries higher switch current.
Does the XL6009 output 4A?+
No; the '4 A' is the switch current, not the output current. In a boost the deliverable output current drops as the output voltage rises. Measure the output before connecting a load and watch the thermal limit.
Can the XL6009 step voltage down?+
No; the XL6009 only steps up (boost). The output cannot be lower than the input. For stepping down use a buck (MP1584/LM2596), or a buck-boost (TPS63020) for both directions.
What is an equivalent of the XL6009?+
The small MT3608; the similar SX1308; the higher-current XL6019.