LTC3230EUD#PBF

LED Driver IC Overview

The LTC3230EUD#PBF is a five-output LED driver IC designed for main and auxiliary display backlight applications. It integrates a switched-capacitor charge pump and dual low-dropout regulators to drive up to five LEDs with a constant current of 25mA. The device operates from a supply voltage range of 2.7V to 5.5V and supports PWM dimming control. It functions at a switching frequency of 900kHz and is housed in a 20-pin WQFN package.

LED Driver IC Feature Summary

• Integrates a switched-capacitor charge pump and dual LDOs for multi-LED driving
• Provides constant current regulation for up to five LED channels
• Supports pulse-width modulation dimming control
• Operates within a wide input voltage range

LED Driver IC Applications

• Main and auxiliary display backlighting
• Mobile device LED illumination
• Portable electronics lighting systems

LED Driver IC Procurement Notes

Verify the specific suffix PBF confirms lead-free compliance and RoHS status against the manufacturer's latest documentation. Confirm the 20-WFQFN package dimensions and thermal pad requirements match your PCB layout. Ensure the operating temperature range of -40°C to 85°C meets your environmental specifications before finalizing procurement.

LED Driver IC Selection Notes

Select this component when designing circuits requiring independent or grouped control of multiple LEDs from a single source. It is suitable for applications needing high efficiency without external inductors due to its charge-pump architecture. Consider the 25mA output current limit and 900kHz frequency when evaluating power budget and EMI constraints for the target system.

LED Driver IC Part Context

This part belongs to Analog Devices' family of LED lighting driver integrated circuits. It is specifically engineered for portable display applications where space and component count are critical. The device replaces discrete solutions by combining power management and regulation functions into a compact surface-mount package.

LED Driver IC Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure any replacement maintains the 20-QFN footprint, 25mA output capability, and compatible dimming interface.