STMicroelectronics

ST662ABD

ST662ABD Description

The ST662ABD from STMicroelectronics is a fixed-output charge pump DC-DC switching voltage regulator, designed to deliver a stable 12V output with a maximum current of 30mA. Operating within an input voltage range of 4.5V to 5.5V, this IC is optimized for low-power applications requiring efficient voltage conversion. With a switching frequency of 400kHz, it ensures compact design integration while minimizing external component count. The device features a positive output configuration, making it suitable for driving small loads in space-constrained environments. Packaged in an 8-pin SOIC tube, the ST662ABD is RoHS3 compliant and REACH unaffected, aligning with environmental regulations.

ST662ABD Features

• Fixed 12V Output: Provides a stable voltage for precision applications.
• Wide Input Range (4.5V–5.5V): Compatible with standard 5V power supplies.
• High Efficiency (400kHz Switching): Reduces power loss and improves thermal performance.
• Low Output Current (30mA): Ideal for low-power circuits and portable devices.
• Single Output, Non-Synchronous Topology: Simplifies design with minimal external components.
• Surface-Mount (SOIC-8) Package: Enables compact PCB layouts.
• RoHS3 Compliant & REACH Unaffected: Meets stringent environmental standards.

ST662ABD Applications

The ST662ABD is particularly suited for:

• LCD Bias Supplies: Generating stable voltages for display panels.
• Portable Electronics: Powering low-current sensors, amplifiers, or interface circuits.
• Industrial Control Systems: Providing auxiliary voltages in embedded systems.
• Automotive Accessories: Supporting infotainment or instrumentation subsystems.
• Battery-Powered Devices: Extending voltage rails in energy-efficient designs.

Conclusion of ST662ABD

The ST662ABD stands out as a reliable, compact solution for low-power voltage conversion, offering high efficiency, ease of integration, and compliance with environmental standards. While now obsolete, its legacy in applications requiring precise 12V generation from 5V inputs remains notable. Engineers seeking alternatives should consider modern charge pumps with enhanced features, but the ST662ABD’s simplicity and performance make it a historical benchmark in its category.