MIC5158BM-TR

Overview

The MIC5158BM-TR is a Super LDO Regulator Controller manufactured by Microchip Technology, housed in a 14-SOIC package. It operates within an input voltage range of 3V to 36V and features a typical operating current of 4.5mA with less than 1µA standby current. The device supports fixed 5V or adjustable output configurations ranging from 1.3V to 36V using two external resistors. It includes an internal charge pump voltage tripler for gate drive generation.

Feature Summary

• Internal charge pump voltage tripler eliminates the need for external gate drive supplies
• Configurable as a fixed 5V controller or programmable for voltages between 1.3V and 36V
• Integrated constant-current limiting with a typical threshold of 35mV across an external sense resistor
• Open-collector flag output signals when the regulated voltage drops more than 8% below nominal

Applications

• Ultrahigh current ultralow dropout voltage regulators
• Low noise or low-dropout SMPS post regulators
• Constant high-current sources
• High-current, current-limited switches

Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance requirements as the specific part may not meet current environmental standards. Ensure the 14-SOIC package dimensions align with PCB layout constraints. Validate that the internal charge pump configuration meets system power requirements.

Selection Notes

Select this controller when designing high-current linear regulators requiring minimal external components. The internal charge pump simplifies design compared to versions requiring external gate drive supplies. Suitable for applications needing precise output voltage regulation with integrated fault detection capabilities via the flag pin.

Part Context

This component belongs to the MIC5156/5157/5158 family of Super LDO Regulator Controllers. While sharing similar control architectures, the MIC5158 specifically integrates an internal charge pump and offers flexible output configuration options distinct from the fixed-output MIC5156 or selectable-voltage MIC5157 variants.

Replacement Considerations

MIC5158YM-TR is listed as a direct replacement option.