L6986HTR

Voltage Regulators - DC DC Switching Regulators Overview

The L6986HTR is a synchronous step-down switching regulator from STMicroelectronics, designed for high efficiency and compact applications. It operates with an input voltage range of 4 V to 38 V and delivers up to 2 A DC output current. The device features a fixed 5 V output voltage option within the L6986H series. Key electrical parameters include a quiescent current of 30 µA in low consumption mode and a shutdown supply current of 8 µA. The adjustable switching frequency ranges from 250 kHz to 2 MHz, allowing optimization for size and performance. It utilizes peak current mode architecture and includes protections such as thermal shutdown, overvoltage protection, and internal current limiting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification design ensures high efficiency at medium to heavy load conditions.
• Low Consumption Mode (LCM) maximizes efficiency during idle or light-load operations while controlling output ripple.
• Embedded output voltage supervisor manages reset phases for digital loads like microcontrollers and FPGAs.
• P-Channel MOSFET high-side switch enables 100% duty cycle operation for low dropout performance.

Voltage Regulators - DC DC Switching Regulators Applications

• Power supplies for 5 V, 12 V, and 24 V systems
• Digital load power management for microcontrollers and FPGAs
• Battery-powered equipment requiring high efficiency

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and tape/reel specifications. Ensure the ordering code matches the required fixed output voltage variant if applicable. Confirm moisture sensitivity level handling requirements during storage and assembly. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 38 V is required alongside a fixed 5 V output. Consider the L6986HTR for designs needing synchronous rectification to minimize external component count and size. Evaluate the adjustable switching frequency range to balance EMI constraints against passive component size. Verify that the 2 A output current capability meets the peak load demands of the target application.

Voltage Regulators - DC DC Switching Regulators Part Context

The L6986HTR belongs to the L6986H family of monolithic switching regulators. This series is characterized by its ability to deliver high current with minimal external components. The 'H' designation typically indicates specific fixed output voltage variants within the broader L6986 lineup, which also includes adjustable versions and isolated buck topologies.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for L6986H5VTR for identical 5 V fixed output specifications. Compare L6986ITR if an isolated buck topology is required instead of standard step-down conversion. Verify pin compatibility and thermal characteristics before substituting with other STMicroelectronics PMICs.