DC-DC Switching Buck, Boost, Inverting Regulator Adjustable 1.5A SOIC-8

The MC33063ADR from Texas Instruments is a versatile DC-DC switching regulator designed for building simple and efficient power conversion circuits. It supports buck (step-down), boost (step-up), and inverting topologies, making it a flexible solution for a wide range of power supply applications. With a minimal external component count, this regulator simplifies design and reduces board space.

Key features include an adjustable output voltage, short-circuit current limiting, and low standby current, ensuring reliable and energy-efficient operation. The device operates with an oscillator frequency of up to 100kHz and features a 2% precision internal reference for accurate voltage regulation. It accepts an input voltage range from 3V to 40V and delivers an output current of up to 1.5A, with an adjustable output from 1.25V to 40V.

The regulator is housed in a compact SOIC-8 package with surface mount mounting, making it suitable for automated assembly. It operates over a wide temperature range from -40°C to 85°C, ensuring performance in demanding environments. With an efficiency rating of 87.7%, this IC is an efficient choice for power conversion in various electronic devices.

Applications include portable devices, communications networking, consumer electronics, computer peripherals, and test & measurement equipment. Whether you need to step down, step up, or invert voltages, the MC33063ADR provides a reliable and cost-effective solution.

Specifications

• Topology: Buck, Boost, Inverting
• Input Voltage Range: 3V to 40V
• Output Current: 1.5A
• Output Voltage Range: 1.25V to 40V (Adjustable)
• Switching Frequency: Up to 100kHz
• Efficiency: 87.7%
• Precision Internal Reference: 2%
• Special Features: Short-circuit current limiting, Low standby current