XC6221C14A7R-G

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

The XC6221C14A7R-G is a fixed-output low dropout regulator from Torex Semiconductor, housed in an USPN-4 package. It provides a nominal output voltage of 1.40V with a maximum output current capability 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 for standard voltages. Electrical performance includes a supply current of 25μA, standby current of 0.01μA, and ripple rejection of 70dB at 1kHz. Output accuracy is specified at +30mV for voltages up to 1.45V. The component supports an operating ambient temperature range from -40°C to +85°C.

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

• Integrates a CE pin with an internal pull-down resistor to ensure defined logic states during shutdown.
• Utilizes laser trimming technology to achieve precise factory-set output voltage increments.
• Incorporates fold-back current limiting and short-circuit protection circuits for enhanced safety.

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 ordering suffix '7R-G' corresponds to the USPN-4 package configuration before procurement. Confirm that the 'C' designation indicates the presence of an internal CE pin pull-down resistor, which affects standby current consumption compared to other series variants. Ensure compatibility with the required output capacitor values for phase compensation as detailed in the operational explanation section of the datasheet.

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

Select this component when a fixed 1.40V rail is required with minimal quiescent current draw. The USPN-4 package offers a compact footprint suitable for space-constrained portable designs. Consider the internal CE pull-down resistor feature if system stability during power-up or floating control lines is a priority. Verify that the input voltage remains within the 1.6V to 6.0V range to ensure proper regulation and avoid exceeding absolute maximum ratings.

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

This part belongs to the XC6221 series of high-speed, low-noise CMOS regulators. The series is characterized by low dropout voltage characteristics and high ripple rejection capabilities. It is designed for battery-powered applications requiring efficient power management. The 'C' variant specifically differentiates itself through its CE pin architecture, which includes an internal pull-down resistor to prevent undefined states.

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

XC6221C14A7R-TR

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

How does the XC6221C series differ from the XC6221A series regarding the CE pin?

The XC6221C series includes an internal pull-down resistor on the CE pin, ensuring the IC turns off when the pin is open. In contrast, the XC6221A series lacks this resistor, leaving the CE pin in an undefined state if left open.

What is the output voltage accuracy specification for the XC6221C14A7R-G?

For output voltages less than or equal to 1.45V, the standard accuracy is specified as +30mV.