MIC5158YM

Overview

The MIC5158YM is a Super LDO Regulator Controller manufactured by Microchip Technology, housed in an 8-pin SOIC package. It operates within a supply voltage range of 3V to 36V and supports an adjustable output voltage from 1.3V to 36V using two external resistors. The device features an internal charge pump tripler for gate drive generation, with a typical operating current of 4.5mA and shutdown current below 1µA. It includes a 35mV current limit threshold and an open-collector flag output.

Feature Summary

• Internal charge pump tripler generates gate drive voltage without external supplies
• Configurable as fixed 5V or programmable via external resistors
• Integrated constant-current limiting with 35mV threshold detection
• Open-collector flag output signals out-of-regulation conditions

Applications

• Ultrahigh current ultralow dropout voltage regulators
• Low noise post regulators for switch-mode power supplies
• High-current current-limited switches
• Battery charger constant-current sources

Procurement Notes

Verify the specific suffix YM indicates the 8-pin SOIC package variant. Confirm RoHS compliance status through official documentation. Check for moisture sensitivity levels and storage requirements before assembly. Ensure the ordering code matches the required temperature range and pin configuration.

Selection Notes

Select this controller when an internal charge pump is preferred over an external gate drive supply. It is suitable for designs requiring either a fixed 5V output or a fully adjustable range up to 36V. Consider the 8-pin footprint if space is limited compared to the 14-pin variants.

Part Context

This component belongs to the MIC5156/5157/5158 family of Super LDO Regulator Controllers. While sharing core regulation features, the MIC5158 differs by offering both fixed 5V and adjustable configurations within its specific package options. It utilizes an internal charge pump unlike the MIC5156 which requires external gate drive.

Replacement Considerations

MIC5158YM-TR is a direct tape-and-reel replacement for the tube-packaged MIC5158YM.