Description
The LM66200 Ideal Dual Diodes Breakout Module is a compact and efficient solution for intelligent power-path selection in systems that require automatic or controlled switching between two power sources. It is ideal for applications such as dual power supply selection, USB OTG power switching, battery backup systems, and load sharing.
At the core of this module is the LM66200 ideal diode / power switch IC, which integrates two independent power channels with ultra-low on-resistance. Unlike traditional diodes, it minimizes voltage drop and heat loss, ensuring high efficiency even at higher currents. Built-in protection features make it safe and reliable for long-term use in embedded and portable designs.
Core Advantages
Ultra-low conduction loss: Typical on-resistance of 0.04Ω per channel, greatly reducing power dissipation and heat
Wide voltage compatibility: Operates from 1.5V to 5.5V, suitable for both 3.3V and 5V systems
Dual independent channels: Each channel can be enabled separately for flexible power routing
Comprehensive protection:
Compact module design: Small footprint makes it easy to integrate into space-constrained projects
Technical Specifications
Input Voltage Range: 1.5V to 5.5V (dual independent circuits)
Maximum Continuous Current: 2A per channel
Typical On-Resistance: 0.04Ω @ 5V
Switching Speed: ~50µs (VIN1 to VIN2 transition)
Control Interface: Two independent enable pins (active-high)
Quiescent Current: 1µA (shutdown mode)
Operating Temperature: −40°C to +85°C
Module Dimensions: 16.5mm × 10mm
Applications
Dual power source selection (USB + battery)
Battery backup and failover systems
USB OTG and portable devices
Power multiplexing in embedded systems
Efficient load sharing designs
Package Includes
This module is a clean, efficient replacement for traditional diode-OR circuits, offering lower losses, better protection, and smarter power management in modern electronic designs.
