STMICROELECTRONICS DC-DC Switching Regulator, 1.5A, SOIC-8

This STMICROELECTRONICS DC-DC Switching Regulator is a monolithic control circuit delivering the main functions for DC-DC voltage conversion. The device contains an internal temperature-compensated reference, a comparator, a duty cycle controlled oscillator with an active current limit circuit, a driver, and a high current output switch. Output voltage is adjustable through two external resistors, offering a 2% reference accuracy.

Employing a minimum number of external components, this device series is designed for step-down, step-up, and voltage-inverting applications. It features active current limiting and an output switch current in excess of 1.5A. Additionally, it boasts a typical low quiescent current of 2.5mA, making it highly efficient for power management applications.

This versatile switching regulator provides adjustable output with a wide input voltage range from 3V to 40V. The SOIC-8 surface-mount package ensures a compact footprint, suitable for space-constrained printed circuit board designs. With a typical switching frequency of 33kHz and up to 89% efficiency, it balances performance and power conservation effectively. The operating temperature ranges from 0°C to 70°C, accommodating standard commercial environments. It measures 43 mm in height, 33 mm in width, and 15 mm in depth, with a weight of 3 grams.

Key Features

• Topology: Buck, Boost, Inverting
• Output Type: Adjustable
• Wide Input Voltage Range: 3V to 40V
• Max Output Current: 1.5A
• High Efficiency: Up to 89%
• Surface Mount Package: SOIC-8