LM3590MFX/NOPB

LED Driver IC Overview

The LM3590MFX/NOPB is a synchronous buck converter integrated circuit manufactured by Texas Instruments. It features an internal high-side and low-side MOSFET switch capable of delivering up to 20 mA of output current. The device operates with a supply voltage range up to 12.6 V and supports PWM dimming for backlight applications. It is housed in a SC-74A (SOT-753) surface-mount package and functions within an operating temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

• Integrates synchronous buck topology with internal power switches
• Supports Pulse Width Modulation (PWM) dimming control
• Provides stable linear drive current up to 20 mA

LED Driver IC Applications

• LED backlight drivers
• Portable electronic devices requiring compact power solutions
• Battery-powered systems with space constraints

LED Driver IC Procurement Notes

Verify the specific suffix 'MFX' corresponds to the SC-74A/SOT-753 package variant when sourcing. Confirm that the 'NOPB' designation indicates lead-free and RoHS compliance status as per the manufacturer's latest documentation. Ensure the application environment remains within the specified -40°C to +85°C thermal limits for reliable operation.

LED Driver IC Selection Notes

Select this component for designs requiring a small footprint due to its SOT-753 packaging. It is suitable for low-current LED driving tasks where efficiency and size are prioritized over high-power delivery. Consider the 12.6 V maximum input limit when choosing input capacitors and source voltages.

LED Driver IC Part Context

This part belongs to the LM3590 series of LED driver ICs from Texas Instruments. It is designed specifically for managing LED currents in portable applications, distinguishing it from general-purpose switching regulators by its focus on constant current output and dimming integration.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.