HX4004 Overview
The HX4004 is a low noise, constant frequency (400kHz) switched capacitor voltage doubler. It produces a regulated output voltage from a 2.8V to 5.0V input. Low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make the HX4004 ideally suited for small, battery-powered applications.
HX4004 Key Features
- Fixed 5V Output
- VIN Range: 2.8V ～ 5.0V
- Output Current: up to 100mA（VIN≥2.8V）
- Constant Frequency Operation at All Loads
- Low Noise Constant Frequency (400kHz)
- Automatic Soft-Start Reduces Inrush
- Shutdown Current <1μA
- Short-Circuit Protection
- No Inductors
- Available in Low Profile 6-Lead SOT23