L6920DTR

Voltage Regulators - DC DC Switching Regulators Overview

The L6920DTR is a high-efficiency synchronous step-up controller designed to convert battery voltage to selected output voltages using only three external components. It guarantees startup at 1V and operates with input voltages down to 0.6V. The device features an internal 120mΩ P-channel MOSFET active switch and an internal synchronous rectifier. To enhance efficiency, it implements variable frequency control. Output options include fixed 3.3V and 5V configurations or adjustable outputs ranging from 2V to 5.2V.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Internal synchronous rectification with low on-resistance active switch
• Guaranteed operation starting from 1V input voltage
• Variable frequency control for improved efficiency
• Integrated reverse battery protection

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable devices
• Single-cell lithium-ion power systems
• Low voltage DC-DC conversion circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the NRND (Not Recommended for New Designs) status before initiating any new production plans. Confirm that the DTR suffix corresponds to the required tape and reel packaging format for your assembly line. Ensure compatibility with existing board layouts due to potential lifecycle restrictions associated with this component designation.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this controller when designing space-constrained applications requiring minimal external component counts. It is suitable for systems needing reliable startup from deeply discharged batteries. Consider the variable frequency operation if electromagnetic interference management is critical. Verify that the adjustable output range meets the specific load requirements of the target application.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to STMicroelectronics' power management portfolio, specifically within the step-up converter category. It is engineered for high efficiency in mobile and handheld electronics where battery life and physical size are primary constraints. The device integrates power switches to reduce solution footprint compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

As the L6920 series is marked NRND, evaluate alternative step-up controllers from current ST portfolios. Ensure any substitute maintains similar input voltage ranges and package dimensions to facilitate direct replacement without significant redesign.