XC6222A131MR-G

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

The XC6222A131MR-G is a fixed-output low dropout regulator from Torex Semiconductor, providing a nominal output voltage of 1.3 V with a maximum continuous output current of 700 mA. It operates within an input voltage range of 1.7 V to 6.0 V and features a typical dropout voltage of 420 mV at 300 mA load. The device maintains a supply current of 100 uA and delivers a power supply rejection ratio of 65 dB at 1 kHz. Packaged in SOT-25-5 for surface mount applications, it supports an operating ambient temperature range of -40°C to +85°C.

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

• Integrated chip enable function with active high logic control and internal auto-discharge switch for rapid output capacitor discharge.
• Built-in over-current protection and thermal shutdown circuits that activate upon reaching specific current or junction temperature limits.
• Reverse current protection mechanism prevents backflow from the output to the input pin when input voltage drops below output voltage.

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

• USB / HDMI products
• Optical disk drives
• Magnetic disk drives
• Smart phones / Mobile phones
• Portable game consoles

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

Verify the complete part number against official manufacturer documentation to ensure correct configuration. Confirm that the 'A' designator matches the required 85°C operating temperature range and the 'MR-G' suffix corresponds to the SOT-25 package. Ensure compliance with RoHS and halogen-free specifications as indicated by the '-G' suffix before finalizing procurement orders.

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

Select this component for designs requiring a stable 1.3 V rail with high current capability in a compact footprint. The SOT-25 package offers a balance between thermal performance and board space efficiency. Consider the 100 uA quiescent current for battery-powered applications and verify that the external ceramic capacitors meet the minimum capacitance requirements for phase compensation stability.

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

This device belongs to the XC6222 series of high-speed LDO regulators designed for portable electronics. The series utilizes a P-channel MOSFET driver transistor to achieve low dropout characteristics. The A-type designation specifically indicates an operating temperature range of -40°C to +85°C, distinguishing it from E, F, G, and H types which support extended temperatures up to 105°C.

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

XC6222A131PR-G

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

How does the Chip Enable (CE) pin function affect the output state?

Inputting a low level signal to the CE pin places the circuit in a stand-by state. For the B/D/F/H type configurations, an internal auto-discharge switch activates to rapidly discharge the output capacitor, pulling the VOUT pin quickly to the VSS level.

What protection mechanisms are integrated into the regulator?

The IC includes over-current protection, short-circuit protection, and thermal shutdown circuits. Over-current protection activates when the output current reaches the limit level, while thermal shutdown operates when the junction temperature reaches approximately 150°C.