XC6221C19ANR-G

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

The XC6221C19ANR-G is a single-output fixed linear low-dropout regulator from Torex Semiconductor. It provides a nominal output voltage of 1.90V with a maximum continuous output current of 200mA. The device operates within an input voltage range of 1.6V to 6.0V and features a typical dropout voltage of 80mV at 100mA load. It incorporates a CE control pin with an internal pull-down resistor for shutdown functionality, achieving a standby current below 0.1μA. The component utilizes laser-trimmed accuracy and includes built-in overcurrent protection.

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

• Integrates an ON/OFF control function via the CE pin, which includes an internal pull-down resistor to ensure a defined off-state without external components.
• Delivers high ripple rejection performance to effectively suppress power supply noise across varying load conditions.
• Supports stable operation using low ESR ceramic capacitors for both input and output filtering requirements.
• Features fold-back current limiting circuitry that acts as short-circuit protection while regulating output current.

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

• Smart phones
• Portable game consoles
• Digital still cameras
• Mobile devices

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

Verify the specific package type against the ordering suffix NR-G, which corresponds to SSOT-24. Confirm the CE pin configuration matches the C-type designation, indicating the presence of an internal pull-down resistor. Ensure the required output voltage tolerance aligns with the standard accuracy specifications provided in the datasheet for this voltage step.

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

Select this variant when a fixed 1.90V rail is required with minimal quiescent current consumption. The internal pull-down resistor on the CE pin simplifies interface design by preventing undefined states if the control signal is floating. Verify that the application environment remains within the specified operating temperature range for optimal regulation stability.

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

This component belongs to the XC6221 series of CMOS regulators designed for portable electronics. The series emphasizes low power consumption and small footprint solutions. The XC6221C19ANR-G specifically represents the C-type variant with fixed voltage output, utilizing the SSOT-24 package for compact surface-mount integration.

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

XC6221B19ANR-G

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

How does the XC6221C19ANR-G handle the CE pin when left unconnected?

Due to the internal pull-down resistor characteristic of the C-type series, leaving the CE pin open will automatically pull it to the VSS level, placing the regulator in the OFF state.

What is the mechanism for output discharge during standby mode?

Unlike B or D types, the C-type series does not feature an active CL auto-discharge switch. The output capacitor discharges through the internal feedback resistors R1 and R2 only.