LM27966SQX/NOPB

Overview

The LM27966SQX/NOPB is a white LED driver IC featuring an I2C-compatible interface for brightness control. It utilizes a charge pump topology to drive up to six LEDs in parallel with a total output current of 180 mA. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports an operating frequency between 890 kHz and 1.57 MHz. Output voltage is adjustable from 2 V to 4 V. It is housed in a WQFN-24 package and functions within a temperature range of -30°C to +85°C.

Feature Summary

• Integrates I2C compatible interface for digital brightness control
• Employs charge pump topology eliminating the need for external inductors
• Provides high current matching accuracy across multiple channels

Applications

• Display backlighting systems
• White LED lighting applications
• Portable electronic devices requiring regulated LED drive

Procurement Notes

Verify the specific suffix 'X' indicates tape and reel packaging configuration distinct from non-X variants. Confirm RoHS compliance status through official manufacturer documentation. Ensure the ordering part number matches the required package type and environmental rating. Cross-reference datasheet revisions to confirm pinout and electrical specifications remain consistent with design requirements.

Selection Notes

Select this component when an inductor-less solution is required for driving multiple parallel white LEDs. The I2C interface allows for precise digital dimming control without additional analog circuitry. Consider the 180 mA total current limit and 6-channel architecture for system power budgeting. Verify that the WQFN-24 package footprint fits the available PCB space constraints.

Part Context

This part belongs to the LM27966 series of LED drivers designed for display applications. It serves as a specialized power management integrated circuit (PMIC) for regulating LED current in portable electronics. The NOPB suffix denotes lead-free and RoHS-compliant manufacturing standards, aligning with modern environmental regulations for consumer electronics components.

Replacement Considerations

LM27966SQ/NOPB is a direct substitute differing primarily in packaging format rather than electrical function.