LT3582EUD-12#TRPBF

Overview

The LT3582EUD-12#TRPBF is a dual-channel DC/DC converter manufactured by Analog Devices Inc., housed in a 16-pin QFN package. It integrates a boost converter and an inverting buck-boost converter driven by a single external inductor. The device provides two regulated outputs: a positive output of 12 V and a negative output, with a maximum output current capability of 200 mA per channel. It operates from an input voltage range of 2.475 V to 5.5 V and features a typical quiescent current of 325 µA. The switching frequency is fixed at 100 kHz, and the component supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Integrates boost and inverting topologies using a single external inductor to minimize component count.
• Provides simultaneous positive and negative regulated outputs suitable for biasing applications.
• Includes shutdown functionality to reduce power consumption during inactive periods.

Applications

• Biasing circuits for active matrix OLED displays
• Power supply stages for CCD image sensors
• Systems requiring simultaneous positive and negative rail generation

Procurement Notes

Verify the specific suffix against official documentation, as the #TRPBF designation indicates tape-and-reel packaging which may differ from tube-packaged equivalents like #PBF. Confirm availability status directly with authorized distributors, as supply constraints may apply. Ensure the selected variant matches the required thermal performance and regulatory compliance standards for the target deployment environment.

Selection Notes

Select this component when space-constrained designs require dual polarity rails derived from a single inductor. The fixed 100 kHz frequency aids in EMI management compared to higher-frequency alternatives. Verify that the 200 mA output current meets load requirements and that the 12 V fixed output aligns with system voltage specifications without requiring external adjustment resistors.

Part Context

This part belongs to the LT3582 family of dual-channel converters designed for portable electronics. It shares architectural similarities with other single-inductor multi-output regulators but is distinct in its fixed output voltage configuration and specific thermal package options within the Analog Devices PMIC portfolio.

Replacement Considerations

LT3582EUD-12#PBF offers identical electrical characteristics in tube packaging. Cross-reference with LT3582EUD-5#TRPBF if a 5 V positive output is required instead of 12 V.