XC6229H1711R-G

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

The XC6229H1711R-G is a 300mA ultra-small high-speed LDO regulator from Torex Semiconductor, housed in an LGA-4B01 package. It features a fixed output voltage of 1.7V with ±2% accuracy and operates within an input voltage range of 1.6V to 5.5V. The device includes built-in inrush current protection, current limit circuits, and thermal shutdown. It supports low ESR ceramic capacitors for both input and output stages.

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

• Built-in inrush current protection circuit limits startup surge current.
• Internal discharge switch rapidly discharges output capacitor during standby mode.
• Active-high CE pin enables stand-by operation with minimal power consumption.
• Compatible with low ESR ceramic capacitors for stable phase compensation.

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

• Mobile devices and terminals
• Wireless LAN modules
• Smart phones and mobile phones

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

Verify the specific ordering suffix matches the required type H configuration with inrush current protection. Confirm the package designation corresponds to the LGA-4B01 form factor. Ensure the output voltage code aligns with the target 1.7V requirement. Check environmental compliance markings for RoHS and halogen-free status as indicated by the -G suffix.

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

Select this component when space-constrained designs require a compact LGA footprint. Choose Type H variants if inrush current suppression is necessary for system stability. Ensure the load current does not exceed the 300mA maximum rating. Verify that the input voltage remains within the specified 1.6V to 5.5V operational window.

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

This part belongs to the XC6229 series of ultra-small high-speed LDO regulators. The series is designed for applications requiring low dropout voltage and high ripple rejection. The H variant specifically integrates inrush current protection, distinguishing it from the standard D type which lacks this feature.

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

How does the inrush current protection function during startup?

The circuit suppresses the inrush current flowing from the input pin to the output pin for approximately 120μs when the output voltage reaches about 30% of the set voltage.

What happens to the output voltage when the CE pin is set to low level?

The IC enters stand-by mode, and an internal switch discharges the electric charge at the output capacitor, causing the VOUT pin to quickly return to the VSS level.