CD5311

Current Regulation - Diodes, Transistors Overview

The MIC5311 is a high-performance dual low dropout regulator featuring ultra-low operating current and a LowQ mode that reduces consumption by 75%. Each channel sources up to 300mA with 1% accuracy. Input voltage ranges from 2.5V to 5.5V, with dropout voltages of 60mV at 150mA and 120mV at 300mA. Total quiescent current is typically 28µA in full mode and 7µA in LowQ mode. The device includes TTL-compatible enable pins for zero-off-mode current states and utilizes µCap technology for stability with small ceramic output capacitors.

Current Regulation - Diodes, Transistors Feature Summary

• Dual-channel architecture providing independent power regulation
• LowQ mode significantly reduces internal current draw for battery applications
• TTL logic compatible enable pins allow precise channel control
• µCap design ensures stability with minimal external capacitance

Current Regulation - Diodes, Transistors Applications

• Battery operated portable devices
• Mobile phones and PDAs
• Wireless communication modules

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific suffix codes on the MIC5311-GMBML or MIC5311-DKBML to confirm fixed output voltage combinations and package variations. Ensure compatibility with the required input voltage range and load current specifications before integration into the final circuit design.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when dual isolated rails are required within a compact footprint. The LowQ feature is critical for extending battery life in standby modes. Verify that the application environment supports the specified thermal dissipation capabilities given the MLF-10 package constraints.

Current Regulation - Diodes, Transistors Part Context

Manufactured by Microchip Technology (formerly Micrel), the MIC5311 belongs to the µCap LDO family designed for space-constrained electronics. It serves as a power management solution for systems requiring multiple stable voltage rails from a single source.

Current Regulation - Diodes, Transistors Replacement Considerations

Evaluate the MIC5314 and MIC5316 if Power On Reset functionality is required instead of standard enable control. Check pinout compatibility before substituting with other dual LDOs from the same manufacturer series.