# LM66100DCKR (Component) ## Description OR Controller P-Channel 1:1 SC-70-6 The LM66100DCKR is an ideal diode and power path management device manufactured by Texas Instruments. This integrated circuit is designed to provide low-loss reverse polarity protection and automatic power path control for low-voltage DC power systems. By utilizing an integrated low-resistance MOSFET architecture, the device significantly reduces forward voltage drop and power dissipation compared to conventional Schottky diodes. The device supports automatic source selection, reverse current blocking, and efficient power OR-ing functionality, making it suitable for battery-powered devices, USB-powered electronics, industrial embedded systems, portable equipment, and redundant power supply architectures. Its ultra-low forward voltage characteristics improve overall system efficiency and help extend battery operating life in portable applications. The LM66100DCKR is optimized for compact embedded designs requiring efficient power routing, input protection, and seamless power source switching while minimizing thermal losses and PCB footprint requirements. Engineering Specification Device Type Ideal diode and power path protection IC Power Management Function Reverse current blocking and automatic power path control Switching Technology Integrated low-resistance MOSFET architecture Reverse Protection Reverse polarity and reverse current protection Forward Voltage Characteristics Ultra-low forward voltage drop for high-efficiency operation Power Path Features Automatic source selection and power OR-ing support Efficiency Characteristics Reduced conduction loss compared to conventional diode solutions Input Characteristics Designed for low-voltage DC power rail operation Thermal Characteristics Low thermal dissipation due to efficient MOSFET conduction Protection Features Reverse current blocking Reverse polarity protection Power path isolation Fault-tolerant operation Package Type SC70 surface-mount package Mounting Style Surface mount technology Applications Battery-powered electronics USB-powered systems Power multiplexing Portable devices Embedded systems Industrial electronics Redundant power supplies Power OR-ing circuits IoT hardware Low-power electronic systems Manufacturer Texas Instruments #commonpartslibrary #idealdiode #powermanagement #reversepolarityprotection #powerpathcontroller #texasinstruments #powerelectronics #embeddedhardware #portableelectronics #surfaceountcomponents #electronicsdesign #powersupply #usbpower #batterypowered #industrialelectronics ## Component Details - **Owner:** lcsc - **Created:** 11/2/2024 - **Last Updated:** 5/28/2026 - **Visibility:** Public - **Package or Case Code:** SC-70-6_L2.0-W1.3-P0.65-LS2.1-BL - **Symbol Style:** parametric-v1 - **Manufacturer Name:** TI(德州仪器) - **Part Type:** Integrated Circuit - **Manufacturer Part Number:** LM66100DCKR - **Datasheet URL:** https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2flm66100 - **JLCPCB Part Class:** Extended Part - **LCSC Part Number:** C2869734 - **Used in:** 166 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/lm66100dckr/texas-instruments.html?utm_currency=USD&region=europe) | N/A | N/A | | [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/LM66100DCKR/10273183) | N/A | N/A | | [HQonline](https://www.hqonline.com/product-detail/or-controllers-ti-lm66100dckr-2500351621) | N/A | N/A | | [LCSC](https://www.lcsc.com/product-detail/C2869734.html) | N/A | N/A | | [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/LM66100DCKR?qs=vLWxofP3U2y2yPPrXoBBoA%3D%3D) | $0.30 | 4.8K | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** Texas Instruments - **MPN:** LM66100DCKR - **Mount Type:** Surface Mount - **Package / Case Code:** TO - **Pin Count:** 6 - **Logic Function:** AND ## Pins | Pin | Name | Type | |-----|------|------| | 1 | VIN | | | 2 | GND | | | 3 | ~{CE} | | | 4 | NC | | | 5 | ST | | | 6 | VOUT | | --- *Generated from [https://www.flux.ai/lcsc/lm66100dckr~n7rd](https://www.flux.ai/lcsc/lm66100dckr~n7rd)*