L7980TR

Voltage Regulators - DC DC Switching Regulators Overview

The L7980TR is a step-down switching regulator from STMicroelectronics, featuring an embedded Power MOSFET with a minimum current limit of 2.5 A to deliver up to 2 A output current. It operates with an input voltage range of 4.5 V to 28 V and provides an adjustable output voltage from 0.6 V to V_IN. The device integrates a 250 kHz internal oscillator, programmable up to 1 MHz, along with internal soft-start and enable functions. It supports low dropout operation at 100% duty cycle and includes overcurrent and thermal protection. The component is housed in an 8-pin VFQFPN package with an exposed pad.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 2.5 A minimum current-limited embedded Power MOSFET for high load capability
• Features an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz
• Supports low dropout operation via 100% duty cycle capability for efficient voltage conversion
• Includes built-in internal soft-start and enable functions for controlled startup sequences

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive electronic systems requiring robust power management
• Industrial equipment utilizing DC-DC conversion
• Embedded systems needing adjustable step-down regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when ordering. Confirm the 8-pin VFQFPN package dimensions match your PCB footprint requirements. Ensure compatibility with the 4.5 V to 28 V input range for your specific application design. Check for moisture sensitivity handling instructions during storage and assembly processes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact buck converter solution is needed with adjustable output voltages starting from 0.6 V. It is suitable for designs requiring up to 2 A continuous output current with integrated protection features. Consider the thermal performance of the exposed pad package for heat dissipation needs. Verify that the external component count aligns with space constraints due to its minimal external requirement design.

Voltage Regulators - DC DC Switching Regulators Part Context

The L7980 belongs to STMicroelectronics' portfolio of monolithic buck converters designed for high reliability in automotive and industrial applications. It is part of the L798x series, which shares similar architectural features but varies in current ratings and input voltage ranges. This family targets applications demanding efficient power management in small form factors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

L7981TR offers a higher 3 A output current rating within the same input voltage range. L7986TR supports a wider input voltage range up to 38 V with 3 A output. These alternatives share similar package types and control features but differ in electrical specifications.