Hxje Ic Datasheet Top |top| -

| Parameter | HX4004A / HU3031B | | :--- | :--- | | | 2.5 V to 5 V (2.7 V to 4.5 V for HX4004A) | | Fixed Output Voltage | 5 V (±3% to ±4%) | | Maximum Output Current | Up to 250 mA (varies with VIN) | | Switching Frequency | 360 kHz (HU3031B: 400 kHz) | | No-Load Quiescent Current | <1 μA (typical) | | Shutdown Current | <1 μA | | Package | 6‑Lead SOT‑23 (SOT23‑6L) | | Protection Features | Thermal Shutdown, Short‑Circuit Protection, Soft‑Start |

After comparing thousands of IC markings, the (or BQ24040 series). However, other possibilities exist depending on the PCB's origin (e.g., Chinese power bank modules, Bluetooth earbud chargers).

Traditional boost converters store energy in a magnetic field (inductor). The HX-JE stores energy electrostatically in a capacitor. This yields several advantages:

: While "HXJE" is the marking code, similar parts from this manufacturer (HXJ) are often found in SOT23-6 , SOP8 , or SOP16 packages. hxje ic datasheet top

The integrated circuit (IC) marked on the top is the (or its variant HX4004), a Low Noise, Regulated Charge Pump DC/DC Converter manufactured by Hexin Semiconductor. Core Specifications

Explore depending on your exact voltage input and output requirements.

The by HEXIN is a highly efficient boost (step-up) voltage regulator designed primarily for space-constrained electronics. Its defining characteristic is its non-sensing operation . In traditional boost circuits, external resistors are needed to sense and regulate the output voltage. The HX-JE eliminates these components, reducing the overall footprint on the printed circuit board (PCB) and minimizing BOM (Bill of Materials) costs while keeping efficiency remarkably high. | Parameter | HX4004A / HU3031B | | :--- | :--- | | | 2

To use the HXJ9005 effectively, it requires a minimal number of external components, making it ideal for compact designs. The core components typically include:

If you are currently debugging or integrating this component, let me know:

When incorporating an HX-JE boost IC into your circuit schematic, prioritize layout discipline to maintain high power efficiency and minimal noise: The HX-JE stores energy electrostatically in a capacitor

Top Features & Technical Specifications (Datasheet Overview)

Common pitfalls to watch for

Once found, focus on these critical sections to ensure the IC works in your circuit:

Because the HX-JE is designed to boost a lower voltage into a higher, controlled voltage, it is heavily favored in several specific electronics sectors: It easily steps up the from a standard Lithium-Ion battery to regulated logic levels.

ceramic capacitor (X5R or X7R material) directly between VIN and GND . Attach a high-quality