L7986TA

Voltage Regulators - DC DC Switching Regulators Overview

The L7986TA is a step-down switching regulator from STMicroelectronics featuring an embedded power MOSFET with a minimum current limit of 3.7 A, delivering up to 3 A output current. It operates within an input voltage range of 4.5 V to 38 V and supports adjustable output voltages from 0.6 V to VIN. The device includes an internal 250 kHz oscillator, programmable up to 1 MHz, housed in an HSOP-EP-8 package with exposed pad for thermal efficiency.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 3.7 A (min.) current-limited embedded Power MOSFET capable of delivering up to 3 A DC output current.
• Features an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.
• Supports low dropout operation with 100% duty cycle and includes voltage feed-forward capabilities.
• Incorporates internal soft-start, enable functionality, overcurrent protection, and thermal protection mechanisms.

Voltage Regulators - DC DC Switching Regulators Applications

• Buck converter designs
• Step-down regulator ICs
• Automotive applications
• Industrial applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific ordering suffix against official documentation to ensure correct package type and tape/reel configuration. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration. Cross-reference the manufacturer part number with distributor catalogs to validate availability and lead times. Ensure the selected variant matches the required thermal performance specifications for the target application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a compact buck solution with high input voltage tolerance up to 38 V. The HSOP-EP-8 package offers reduced thermal resistance suitable for space-constrained layouts. Consider the programmable switching frequency for optimizing external component size or minimizing EMI noise at specific frequencies. Evaluate the zero load current operation feature if standby power consumption is a critical design parameter.

Voltage Regulators - DC DC Switching Regulators Part Context

The L7986TA belongs to the L7986 series of monolithic buck converters and step-down switching regulators manufactured by STMicroelectronics. This family targets high reliability and performance needs in automotive and industrial sectors. The device complements other PMIC solutions by providing efficient DC-to-DC conversion with integrated protection features and minimal external component count.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing board layouts and thermal management strategies when considering alternative components from the same product family or different manufacturers.