XC6222D131PR-G

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

The XC6222D131PR-G is a fixed-output low dropout regulator from Torex Semiconductor, providing a nominal output voltage of 1.3V with a maximum continuous output current of 700mA. It operates within an input voltage range of 1.7V to 6.0V and features a typical dropout voltage of 420mV at 300mA load. The device incorporates Chip Enable functionality with an internal pull-down resistor and auto-discharge circuit for the output capacitor. It maintains a low supply current of 100μA and offers high ripple rejection of 65dB at 1kHz. The component is housed in a SOT-89-5 package and 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 and automatic output capacitor discharge capability
• Built-in over-current protection and thermal shutdown circuits for enhanced reliability
• Low noise performance with high ripple rejection ratio suitable for sensitive analog loads
• Reverse current protection prevents backflow when input voltage drops below output level

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

• USB and HDMI products
• Optical disk drives
• Magnetic disk drives
• Smart phones and mobile phones
• Portable game consoles

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

Verify the specific suffix PR-G confirms the SOT-89-5 package type and 1000-piece reel quantity. Ensure the D designator matches the required 85°C operating temperature range rather than the E-H series rated for 105°C. Confirm RoHS compliance status as indicated by the G suffix. Cross-reference the 1.3V output designation against the official voltage chart to ensure accuracy for the target application circuit requirements.

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

Select this part when a stable 1.3V rail is required with up to 700mA load capacity. The SOT-89-5 package provides adequate thermal dissipation for moderate power applications. Consider the 420mV dropout voltage relative to the minimum available input voltage. The integrated auto-discharge feature simplifies system power management by ensuring rapid output voltage decay upon shutdown.

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

This component belongs to the XC6222 series of high-speed LDO regulators designed for portable electronic devices. The series utilizes CMOS technology to achieve low power consumption while maintaining high output current capabilities. The D131 designation specifically indicates a 1.3V fixed output with ±1% accuracy for voltages above 2.0V or ±0.02V for lower outputs, though 1.3V falls under the tighter tolerance specification.

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

XC6222D131MR-G (SOT-25-5 package)

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

How does the auto-discharge function operate in standby mode?

When the CE pin is pulled low, an internal N-channel transistor connects the VOUT pin to VSS through a discharge resistance, rapidly draining the charge stored in the output capacitor.

What is the behavior of the reverse current when VIN is lower than VOUT?

The internal reverse current protection circuit limits the current flowing from VOUT to VIN to a maximum of 1.5μA, protecting connected batteries or upstream power sources.