LM66100DCKT

Overview

The LM66100DCKT is a single-input single-output (SISO) ideal diode controller manufactured by Texas Instruments. It integrates a P-channel MOSFET to provide reverse current blocking and input polarity protection within a compact SC-70-6 package. The device operates with an input voltage range of 1.5 V to 5.5 V and supports a maximum continuous current of 1.5 A. It features a low quiescent current of 0.5 uA and includes a comparator for enable control via the CE pin. The component is designed for surface-mount installation and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a P-channel MOSFET for efficient power path management
• Provides reverse current blocking to prevent backflow into input sources
• Includes input polarity protection against incorrect wiring or battery reversal
• Features low static current consumption for energy-efficient operation

Applications

• Input polarity protection in portable electronic devices
• Ideal diode implementation for battery backup systems
• OR-ing controller configurations for redundant power supplies
• Reverse current blocking in hot-swappable applications

Procurement Notes

Verify that the specific suffix 'DCKT' corresponds to the tape-and-reel packaging variant rather than cut-tape, as this affects handling procedures during assembly. Confirm the operating temperature grade matches the application requirements, noting the standard industrial range extends to +125°C. Ensure the SC-70-6 footprint aligns with the PCB layout guidelines provided in the official datasheet to maintain thermal and electrical performance standards.

Selection Notes

Select this component when a compact solution for reverse current blocking is required without external discrete MOSFETs. It is suitable for designs needing high efficiency at low voltages between 1.5 V and 5.5 V. Consider the 1.5 A current limit when sizing for load demands. The integrated nature simplifies bill-of-materials and reduces board space compared to discrete implementations.

Part Context

The LM66100 series belongs to Texas Instruments' portfolio of specialized power management ICs focused on ideal diode controllers. This family addresses the need for efficient power routing in space-constrained environments. The DCKT designation indicates a specific reel configuration within the broader LM66100 product line, which also includes automotive-grade variants like the LM66100-Q1 for extended reliability requirements.

Replacement Considerations

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