MIC5207-1.8BD5

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

The MIC5207-1.8BD5 is a fixed positive linear voltage regulator manufactured by Microchip Technology, formerly Micrel. It provides a fixed 1.8V output with a maximum continuous current of 180mA. The device operates from an input voltage range up to 16V and features a typical dropout voltage of 17mV at light loads and 165mV at 150mA. Quiescent current is specified at 170µA, while shutdown supply current drops to 3µA. It utilizes a SOT-23-5 surface-mount package and supports an operating temperature range from -40°C to +125°C.

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

• Ultra-low noise performance suitable for sensitive analog circuits
• Integrated enable/shutdown control for power management
• Built-in protection against overcurrent, overtemperature, and reverse polarity

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

• Battery-powered handheld devices requiring efficient power regulation
• RF circuits demanding low-noise voltage supplies
• Portable consumer electronics utilizing CMOS or TTL logic

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

Verify the manufacturer designation carefully, as the component was originally produced by Micrel Inc. before its acquisition by Microchip Technology. Ensure the datasheet referenced corresponds to the specific MIC5207 family specifications. Confirm that the SOT-23-5 package variant matches your PCB footprint requirements. Cross-reference the suffix codes to ensure the correct output voltage and thermal rating are selected for your design.

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

Select this regulator when low noise and precise voltage accuracy are critical for the application. The 180mA output capability suits moderate load requirements without excessive heat dissipation. Consider the enable pin functionality if system power sequencing is required. Verify that the input voltage remains within the 16V maximum limit during all operational transients.

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

This component belongs to the MIC5207 series of low-dropout regulators designed for high-performance applications. The series is characterized by its µCap technology, allowing stability with small ceramic capacitors. It represents a transition product from Micrel's portfolio now managed under Microchip Technology's PMIC lineup.

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

Public confirmed substitute part numbers: LD2985BM18R, SPX3819M5-L-1-8/TR.