L7980

Voltage Regulators - DC DC Switching Regulators Overview

The L7980 is a step-down switching regulator from STMicroelectronics featuring an embedded Power MOSFET capable of delivering up to 2 A output current. It supports an input voltage range of 4.5 V to 28 V and provides an adjustable output voltage starting from 0.6 V. The device integrates an internal 250 kHz oscillator, programmable up to 1 MHz, requiring minimal external components. Key electrical parameters include a maximum operating junction temperature of 150 °C and a minimum operating temperature of -40 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates an embedded Power MOSFET for high-efficiency power conversion
• Features low dropout operation with 100% duty cycle capability
• Includes internal soft-start and enable functions for controlled startup
• Provides comprehensive protection against overcurrent and thermal overload

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring regulated DC power
• Automotive electronics applications within specified voltage ranges
• Embedded systems utilizing step-down voltage regulation
• General-purpose power management in compact designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific package variant required, as the L7980 is available in VFQFPN-EP-8 and HSOP8 configurations. Confirm that the selected part number matches the desired tape and reel or cut tape packaging format for surface mount assembly. Ensure compatibility with the intended PCB layout regarding the exposed pad thermal requirements for optimal heat dissipation during operation.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a monolithic buck converter solution is needed with integrated power switches. It is suitable for designs prioritizing minimal external component count and high efficiency. Consider the thermal performance characteristics of the chosen package if operating near maximum load conditions. Verify that the input voltage range aligns with the system's power supply specifications.

Voltage Regulators - DC DC Switching Regulators Part Context

The L7980 belongs to STMicroelectronics' portfolio of monolithic buck converters designed for automotive and industrial reliability. It complements other PMIC solutions by offering a compact, high-current step-down regulator. The device is part of a broader family of switching regulators aimed at simplifying power architecture in space-constrained electronic applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

No public confirmed substitute part numbers are documented in the provided source material.