XC6222B37BMR-G

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

The XC6222B37BMR-G is a fixed-output low-dropout (LDO) voltage regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 3.7 V with a maximum continuous output current of 700 mA. The device operates within an input voltage range of 1.7 V to 6 V and features a typical dropout voltage of 120 mV at rated load. Key electrical specifications include a quiescent current of 100 uA, a power supply rejection ratio (PSRR) of 65 dB, and a line regulation of 0.01 %/V. The unit is housed in a SOT-25-5 surface-mount package and supports an operating temperature range from -40°C to +85°C.

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

• Integrated enable control function for power management
• Built-in protection circuits including over-current, thermal shutdown, and reverse polarity protection
• High-speed response characteristics suitable for dynamic load applications

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

• Portable electronic devices requiring stable low-voltage power rails
• Battery-powered systems utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded circuits needing efficient linear regulation with minimal quiescent current consumption

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

Verify the specific suffix 'B' indicates the presence of the enable pin functionality, as this distinguishes it from non-enable variants within the XC6222 series. Confirm the package designation matches the required PCB footprint. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Cross-reference the manufacturer's latest datasheet for any updates on recommended external capacitor values to ensure stability under varying load conditions.

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

Select this component when a precise 3.7 V fixed output is required from inputs between 1.7 V and 6 V. The 700 mA current capability supports moderate load demands while maintaining efficiency through low dropout performance. The inclusion of an enable pin allows for system-level power sequencing or standby mode control. Consider the SOT-25-5 package size constraints and thermal dissipation requirements relative to the expected ambient temperature and load profile.

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

This part belongs to the XC6222 series of high-speed LDO regulators from Torex Semiconductor. The series is characterized by low quiescent current and high ripple rejection ratios. Variants are distinguished by output voltage, package type, and the presence of control features like enable pins. The XC6222B series specifically denotes parts equipped with enable functionality, offering greater flexibility in system power management compared to standard fixed-output versions.

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

Direct substitutes within the same series include XC6222B371MR-G, which shares identical electrical parameters and package configuration. Verify that any alternative part number maintains the 'B' suffix to ensure the enable pin feature is retained. Other packages such as USP-6C-6 or SOT-89-5 may offer different thermal profiles but require schematic and layout adjustments.