TPS65137ASDSCR

Overview

The TPS65137ASDSCR is an LED lighting driver IC from Texas Instruments featuring dual positive and negative outputs. It utilizes a boost and buck topology with a maximum output current of 200 mA per channel. The device operates within a supply voltage range of 2.5 V to 4.8 V and supports adjustable output voltages. It functions at a switching frequency of 1.6 MHz and is housed in a WSON-10 package. The component is rated for operation between -40°C and +85°C.

Feature Summary

• Integrates low-dropout (LDO) post-regulators to minimize output voltage ripple and ensure stable image quality.
• Provides wide input voltage acceptance, allowing the device to handle inputs higher than the positive output voltage while maintaining regulation.
• Delivers precise voltage regulation with a specified error margin of 1% across the operating range.

Applications

• LED lighting systems requiring dual polarity power supplies
• Display backlighting drivers needing stable line and load transient response

Procurement Notes

Verify the specific suffix ASDSCR against the manufacturer's official datasheet to confirm pinout and thermal characteristics. Ensure the application circuit accommodates the WSON-10 package dimensions and thermal requirements. Confirm that the input voltage range aligns with the system's power source specifications before finalizing procurement.

Selection Notes

Select this component when designing LED drivers that require both positive and negative rails from a single input source. The integrated LDO regulators make it suitable for applications sensitive to output noise. Consider the 200 mA output limit and the WSON-10 footprint when evaluating board space and thermal management constraints.

Part Context

This part belongs to the TPS65137AS series of specialized power management ICs designed for display and lighting applications. It integrates multiple power stages into a compact solution, reducing the need for external components compared to discrete designs. The series focuses on providing high-efficiency power conversion with minimal external bill of materials.

Replacement Considerations

Consult the manufacturer's product selection guide for direct functional equivalents. Verify compatibility regarding package type, pin configuration, and electrical parameters such as input voltage range and output current capabilities before substituting.