For designers requiring a streamlined, efficient boost converter that avoids the inefficiencies of current-sensing resistors, the offers a compelling solution. Its specialized non-sensing nature allows for simpler schematics, reduced component counts, and higher efficiency in portable power applications. When looking for the best performance in compact power systems, the HX-JE is a "top" contender in the specialized IC market.
converter typically used in compact power management applications. Core Technical Specifications According to various sources and technical listings for the HX4004/HX4004A , the device features: Regulated output voltage DC-DC converter. Operating Frequency: Fixed at approximately Output Current: Capable of delivering up to 0.23A (230mA) Package Type: Typically found in a small or SOT-23-6L surface-mount package. Operation Mode:
Engineers sourcing the HX=JE chip from suppliers like Jotrin Electronics or Alibaba reference specific operation limits. The core functional specifications pulled directly from the official datasheet infrastructure include: : (optimized for single-cell Li-ion batteries). Regulated Output Voltage ( VOUTcap V sub cap O cap U cap T end-sub ) : Fixed at (effectively a stable Maximum Output Current : Up to peak. Continual operating specs deliver , climbing to
The primary appeal of the HX-JE (HX4004 / PS3120A) architecture is its design. Unlike traditional boost regulators that require bulky, EMI-generating external inductors, this chip relies entirely on miniature ceramic capacitors to multiply input voltage. Technical Specification Marking Code HX-JE / HX=JE Base Part Numbers PS3120A , HX4004, HX4004A Package Type SOT-23-6 (6-Pin SMD) Input Voltage Range ( VINcap V sub cap I cap N end-sub ) 2.7V to 4.5V (Ideal for Single-Cell Li-Ion/LiPo) Fixed Output Voltage ( VOUTcap V sub cap O cap U cap T end-sub ) ±plus or minus 3% (Regulated ~5V) Maximum Output Current Up to 110mA ( 3V) / Up to 230mA ( Switching Frequency 360 kHz (Constant frequency, low noise) Operating Temperature Range 0°C to +85°C HX-JE Pinout Configuration hxje ic datasheet top
: Look for additional resources provided by the manufacturer, such as application notes, evaluation boards, or technical support contacts.
Positive terminal connect pin for the external flying charge pump capacitor. Cross-Reference and Equivalent ICs
): Fixed at (tolerances typically sit tightly between 4.8V and 5.1V). Maximum Output Current: Up to 300 mA . Nominal Driving Current: 110 mA when ; 230 mA when Operation Mode: Engineers sourcing the HX=JE chip from
(Note: Always verify the specific package diagram in the official PDF datasheet, as pin assignments can shift between revisions.)
If the HX4004 is unavailable, similar DC-DC converters used in similar boost applications include:
Because "HXJE" does not map to a widely recognized or standard integrated circuit (IC) in public engineering databases, it serves as an excellent candidate for a high-level conceptual exploration. In hardware engineering, unsearchable or proprietary chip markings are often encountered during reverse engineering, custom ASIC analysis, or legacy system maintenance. Nominal Driving Current: 110 mA when
: Detailed tables listing parameters like input/output voltages, leakage currents, and power dissipation.
Using a digital multimeter (DMM) to find which pins tie directly to the ground plane and which tie to bulk voltage inputs significantly narrows down the pinout possibilities.
Place the flying capacitor directly adjacent to Pins 1 and 3 to minimize parasitic inductance along the high-frequency switching lines.