MIC5320-MMYML

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The MIC5320-MMYML is a dual Ultra Low Dropout (ULDO) linear regulator from Micrel, integrating two high-performance 150mA LDOs into a compact 8-pin 2mm x 2mm MLF leadless package. It operates with an input voltage range of 2.3V to 5.5V and features ultra-low dropout voltage of 75mV at 300mA load. The device offers high power supply rejection ratio (>70dB @ 1KHz), ultra-low output noise (30µV RMS), and ±2% initial output accuracy. Designed for µCap stability with small ceramic capacitors, it ensures excellent thermal performance and fast start-up time.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrates two independent 150mA ULDO regulators in a tiny 2mm x 2mm MLF package
• Provides ultra-low dropout voltage and high power supply rejection for noise-sensitive applications
• Ensures stability with very small ceramic output capacitors using µCap design
• Includes thermal shutdown and current limit protection for robust operation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Mobile phones
• Cellular phone camera modules
• Imaging sensors for digital still cameras
• PDAs and portable media players
• WebCam applications

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix MMYML corresponds to the 2mm x 2mm MLF package variant rather than other package options like TSOT-23-6 or Thin MLF. Confirm the fixed output voltage code matches the system requirement, as the base part number covers multiple voltage options. Ensure the component is sourced from authorized Microchip distributors to guarantee authenticity and traceability.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when board space is limited due to its small 2mm x 2mm footprint compared to standard SOT packages. Choose this dual regulator over single units to reduce component count and assembly costs. Consider the µCap feature if minimizing external capacitor size is critical for the design. Verify that the 150mA per channel current rating meets the peak load requirements of the target circuitry.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the MIC5320 series of dual ULDO regulators, which are designed for portable electronics requiring high efficiency and low noise. The series includes variants with different packages and output voltages. The MIC5320-MMYML specifically utilizes the MLF package, offering superior thermal characteristics compared to traditional plastic packages while maintaining a minimal profile suitable for thin mobile devices.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes include MIC5320-MKYML and MIC5320-SOYML, which share the same dual 150mA ULDO functionality but may differ in package type or reel configuration. Verify pinout compatibility and thermal pad connections when replacing.