MCP1664T-E/OT

LED Driver IC Overview

The MCP1664T-E/OT is a high-voltage step-up LED driver with UVLO and open load protection. It operates from an input voltage range of 2.4 V to 5.5 V, supporting single-cell lithium-ion or multi-cell alkaline/NiMH batteries. The device features a fixed switching frequency of 500 kHz and delivers up to 300 mA output current in a SOT-23-5 package. It includes PWM dimming capability, cycle-by-cycle inductor peak current limit, and low quiescent current of 40 nA. Qualified under AEC-Q100 for automotive applications, it functions between -40°C and +125°C.

LED Driver IC Feature Summary

• Integrates open load protection and undervoltage lockout (UVLO) for reliable LED driving
• Supports PWM dimming control for precise brightness adjustment
• Features low static current consumption to extend battery life in portable devices
• Includes cycle-by-cycle inductor peak current limit for internal component protection

LED Driver IC Applications

• Camera flash systems
• Medical equipment lighting
• LED flashlight backlighting
• Current source for multi-string LEDs

LED Driver IC Procurement Notes

Verify the specific suffix 'E/OT' corresponds to the SOT-23-5 package and tape-and-reel delivery format. Confirm AEC-Q100 qualification requirements if deploying in automotive contexts. Ensure input voltage ranges match the intended power source configuration before ordering. Check humidity sensitivity handling instructions during storage and assembly processes.

LED Driver IC Selection Notes

Select this component when designing compact boost converters requiring integrated LED driver functionality. It is suitable for space-constrained portable electronics needing efficient step-up regulation. Consider its fixed 500 kHz frequency for EMI management and external component sizing. Evaluate thermal performance within the SOT-23-5 footprint for high-current applications.

LED Driver IC Part Context

This part belongs to the MCP1664 family of non-synchronous boost regulators optimized for LED applications. It differs from general-purpose regulators by integrating specific protections like open load detection. The device serves as a dedicated solution for driving LEDs from single-cell battery sources in consumer and industrial handheld devices.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB footprints and control logic before considering alternative components from other manufacturers.

LED Driver IC FAQ

Does the MCP1664T-E/OT support analog dimming?

No, the datasheet specifies PWM dimming capability only.

What is the maximum output voltage?

The device supports adjustable output voltages up to 32V.