XC6221C18A7R-G

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

The XC6221C18A7R-G is a fixed-output low dropout regulator from Torex Semiconductor, providing a nominal output voltage of 1.80V with standard accuracy. It operates within an input voltage range of 1.6V to 6.0V and delivers a maximum output current of 200mA. The device features a typical supply current of 25μA and a standby current of 0.01μA. It utilizes the USPN-4 package and includes an internal pull-down resistor on the CE pin. Ripple rejection is rated at 70dB at 1kHz.

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

• Integrates an internal pull-down resistor on the control pin to prevent undefined states when left open.
• Capable of driving low ESR ceramic capacitors for phase compensation.
• Includes fold-back current limiting and short-circuit protection circuits.
• Operates with high ripple rejection rates across varying load conditions.

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 that the specific part number matches the required output voltage and package type. Confirm compliance with environmental standards such as RoHS and lead-free requirements. Ensure the ordering suffix corresponds to the correct reel quantity and packaging format specified by the manufacturer.

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

Select this variant for applications requiring a fixed 1.80V output with standard accuracy. The internal pull-down resistor simplifies circuit design by ensuring a defined off-state without external components. Verify that the operating temperature range meets system requirements.

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

This component belongs to the XC6221 series of CMOS LDO regulators. The series offers various output voltages selectable in increments. The 'C' designation indicates the presence of an internal pull-down resistor on the enable pin, distinguishing it from other variants in the family.

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

XC6221C18B7R-G

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

How does the XC6221C series differ from the A series regarding the CE pin?

The XC6221C series includes an internal pull-down resistor on the CE pin, whereas the A series does not have this feature.

What is the function of the CL auto-discharge feature in this part?

The XC6221C18A7R-G does not include a CL auto-discharge switch; the output capacitor discharges only through internal resistors R1 and R2 when the IC is turned off.