Although the HX-JE operates efficiently, it dissipates power internally—especially at higher output currents. While the original datasheets do not specify an exact thermal resistance (θJA) for the SOT‑23‑6 package, general guidelines apply:
Once you have found the HXJE IC datasheet, here are some tips for reading and understanding the information:
At its core, the chip marked "HX-JE" (also referred to as HXJE) is a low‑noise, regulated . It uses a switched‑capacitor voltage‑doubling technique to step up a lower input voltage (2.5 V–5 V) to a stable 5 V output. The most common underlying parts that use this marking are the HX4004A (from HEXIN) , the HU3031B , and the PS3120A —all functionally interchangeable in most applications.
Why do engineers select the HXJE over standard switching regulators?
The HXJE (often associated with manufacturers like Hengjia or similar semiconductor foundries) is typically designed as a high-performance power switch. Depending on the specific suffix variant (e.g., HXJE1, HXJE2), it may function as a buck converter or a dedicated LED driver. hxje ic datasheet top
To help you find the top-rated HXJE IC components, we have compiled a list of the most popular and highly rated parts. Here are some of the top HXJE ICs:
Connected between the input source and the Switching (SW) pin.
): The maximum internal temperature of the chip. Ensure adequate PCB copper area or a heatsink is provided if running the IC near its maximum thermal capacity. 6. Primary Applications
Shutdown/Enable control pin. Active high turns on the IC. Pull low for standby mode. VIN Although the HX-JE operates efficiently, it dissipates power
Example: A 5-pin SOT-23 with “HXJE” could be a voltage regulator (e.g., LD39015) or a single-gate logic chip (e.g., 74LVC1G04).
Verified via controlled bench testing using programmable power supplies and loads. 6. Conclusion
Boosting lithium-ion battery voltage for 5V circuits.
Uses small ceramic capacitors to boost voltage, saving board space. Low Noise: The most common underlying parts that use this
The your project is supplying to the IC.
Your review can help others make more informed decisions, especially if you're able to provide specific examples or comparisons.
Are you using the chip as an or a PS3120A replacement?