L6926

Voltage Regulators - DC DC Switching Regulators Overview

The L6926 is a high-efficiency monolithic synchronous step-down DC-DC regulator from STMicroelectronics. It operates with an input voltage range of 2 V to 5.5 V, making it suitable for single Li-Ion cell applications. The device delivers up to 800 mA output current with adjustable output voltage down to 0.6 V. It features a fixed 600 kHz switching frequency and supports external synchronization from 500 kHz to 1.4 MHz. Key electrical specifications include ±1% output voltage accuracy, low quiescent current, and a maximum shutdown supply current of 1 µA. The regulator ensures low-dropout operation via 100% duty cycle saturation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Internal synchronous switch architecture eliminates the need for external Schottky diodes.
• Selectable low noise or low consumption mode optimizes performance at light load conditions.
• Integrated protection mechanisms include overvoltage protection, short-circuit protection, and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Applications

• Single Li-Ion cell supplied portable electronics
• Noise-sensitive embedded systems requiring clock synchronization
• Battery-powered devices requiring low quiescent current

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific package variant (e.g., 8-VFQFPN) against design requirements. Confirm that the ordering suffix matches the desired tape-and-reel quantity. Ensure compatibility with the target PCB footprint for the 3x3 mm package. Cross-reference the datasheet revision for any updates to pin definitions or electrical characteristics before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages range between 2 V and 5.5 V are required. Choose the L6926 for designs needing high efficiency under varying load conditions. Consider its external synchronization capability if electromagnetic interference management is critical. Verify that the 800 mA output current meets the system's peak demand without exceeding thermal limits.

Voltage Regulators - DC DC Switching Regulators Part Context

The L6926 belongs to STMicroelectronics' family of high-efficiency synchronous buck regulators. It is designed to replace legacy solutions requiring external diodes, thereby reducing component count and board space. The device integrates current-mode control for stable operation across wide input voltage ranges.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official STMicroelectronics resources for direct replacements or pin-compatible alternatives.