Core Functions

The HT7550 adopts CMOS technology, with a maximum operating voltage of up to 24V and a fixed output voltage of 5.0V at a voltage accuracy of ±2%. It delivers a maximum output current of 150mA and features ultra-low power consumption with a quiescent current of only 2.5μA. The device exhibits prominent low dropout performance, with a typical dropout voltage of 25mV at an output current of 1mA. It operates within a temperature range of -35°C to +80°C and has a storage temperature range of -45°C to +120°C, housed in an SOT89 package.

Main Application Fields

Benefiting from its low power consumption and stable voltage output characteristics, the HT7550 is widely used in various audio and video devices such as MP3 players and digital cameras, providing them with a stable power supply. Meanwhile, it is also suitable for communication equipment including Bluetooth modules and Wi-Fi routers, ensuring the reliable operation of signal processing modules. In addition, it finds extensive applications in battery-powered portable instruments and IoT devices, effectively extending the battery life of such equipment.

Technical Advantages

The HT7550 is characterized by its low quiescent current, which significantly prolongs battery life in battery-powered devices. Its CMOS technology ensures low voltage dropout and a low temperature coefficient, resulting in minimal output voltage fluctuation and high stability. Moreover, the chip is available in multiple package options including TO-92 and SOT89. The TO-92 package features wide pin spacing, making it ideal for manual soldering and convenient for electronic DIY enthusiasts. The SOT89 package, on the other hand, boasts a compact size, saving PCB space and suiting small electronic devices with strict space constraints.