: Check for a small stylized "H," "M," or other symbols that identify the manufacturer.
Connection for the positive terminal of the flying capacitor. Key Features Low Noise:
The HX-JE IC uses a standardized 6-pin layout common among high-efficiency charge pumps.
Boosting lithium-ion battery voltage for 5V circuits.
The marking code represents the HX4004A (specifically the HX4004A-MF or HX4004A-MFC variant), a high-efficiency, low-noise, regulated charge pump DC-DC step-up converter . Alternatively, the identical "HX=JE" surface marking is shared by the PS3120A voltage doubler, functioning as a pin-to-pin compatible replacement. This specialized component uses an inductorless "non-sensing" design inside a compact SOT23-6 package to boost low lithium-ion battery voltages up to a stable 5V output. Core Specifications Overview hxje ic datasheet top
The HXJE IC is a highly sought-after electronic component used in a wide range of applications, from consumer electronics to industrial control systems. As a crucial part of many modern devices, it's essential to have access to accurate and reliable information about this IC. In this article, we'll take a closer look at the HXJE IC datasheet and explore its top features, specifications, and uses.
Q: What is the operating voltage range of the HXJE IC? A: The HXJE IC can operate within a voltage range of 2.5V to 5.5V.
: Excellent for identifying parts by manufacturer.
The HX‑JE family of charge‑pump converters—embodied by parts like the HX4004A and HU3031B—offers an elegant solution for generating a stable 5 V rail from a single Li‑ion cell. Its inductor‑less design, minimal external component count, and robust protection features make it a go‑to choice for compact, battery‑powered devices. : Check for a small stylized "H," "M,"
. It is commonly used in battery-powered devices to provide a stable 5V output. Core Specifications Input Voltage ( cap V sub cap I cap N end-sub 2.7V to 4.5V. Output Voltage ( cap V sub cap O cap U cap T end-sub Fixed at approximately 4.94V (Range: 4.8V to 5.1V). Max Output Current: Up to 300 mA. Switching Frequency: 360 kHz to 400 kHz. Operating Temperature: negative 40 raised to the composed with power C positive 85 raised to the composed with power C Package Type: SOT-23-6 (also known as SOT-26). Pinout Configuration The IC uses a 6-pin SOT-23 layout: Description Regulated output voltage pin. Ground connection. Enable pin; pull high to activate the chip.
When you encounter a "HX‑JE" marking on a PCB, you now know exactly what it is: a low‑noise, 5 V output, SOT‑23‑6 charge pump capable of delivering up to 250 mA. Whether you are designing a new product or repairing a failed one, this guide has given you the datasheet‑level insight needed to work with this versatile IC.
Designing within the absolute maximum ratings is critical to preventing catastrophic failure. Standard ratings for the HXJE family typically include:
: An overview of how the IC works and its intended application. Boosting lithium-ion battery voltage for 5V circuits
The internal block diagram of the HXJE reveals a streamlined architecture focused on reliability:
The HXJE IC datasheet top reveals a wide range of applications, including:
The HX-JE employs a topology. Here's a simplified breakdown of its operation:
Negative terminal for the external charge pump flying capacitor. VINcap V sub cap I cap N end-sub