STMicroelectronics

LM258ADT

The LM258ADT is a high-voltage step-down switching regulator integrated circuit (IC) manufactured by STMicroelectronics. This device is designed to provide efficient and reliable power conversion in a wide range of applications.

Description:

The LM258ADT is a monolithic integrated switching regulator that provides a step-down voltage conversion with a fixed 5V output. It is designed to operate from an input voltage range of 4.75V to 40V, making it suitable for a variety of power supply sources. The device features a low quiescent current, which makes it ideal for battery-powered applications.

Features:

1. Wide input voltage range: 4.75V to 40V
2. Fixed 5V output voltage
3. Low quiescent current: 1.2mA (typical)
4. High efficiency: up to 90% depending on input voltage and load conditions
5. Over-current protection
6. Thermal shutdown protection
7. Small package size: available in a compact SOT-223 package

Applications:

The LM258ADT is suitable for a wide range of applications that require a stable 5V output voltage. Some of the common applications include:

1. Portable electronic devices: smartphones, tablets, and other handheld devices
2. Power supplies for small electronic gadgets: GPS units, digital cameras, and portable gaming consoles
3. Industrial equipment: sensors, controllers, and other low-power devices
4. Medical equipment: portable medical devices and wearables
5. Telecom equipment: base stations, routers, and other networking equipment

The LM258ADT's high efficiency, low quiescent current, and wide input voltage range make it an excellent choice for designers looking for a reliable and compact step-down switching regulator for their power conversion needs.