XC6221A47ANR-G

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

The XC6221A47ANR-G is a fixed-output linear regulator from the Torex Semiconductor XC6221 series. It provides a nominal output voltage of 4.70V 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 (Chip Enable) control pin for active-high switching, allowing the circuit to enter a standby mode with a supply current of 25μA and a stand-by current below 0.1μA. The component utilizes laser trimming for precise voltage setting and includes internal protection against overcurrent and short circuits.

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

• High accuracy output voltage regulation achieved through factory laser trimming technology
• Low power consumption with fast response time enabled by low quiescent current design
• Integrated CE function allows for efficient system power management via active-high control signal
• Fold-back current limiter provides robust short-circuit protection and output current limiting

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

• Smart phones and mobile phones
• Portable game consoles
• Digital still cameras and camcorders
• Digital audio equipment
• Mobile devices and terminals

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

Verify that the ordering suffix NR-G corresponds to the SSOT-24 package type as specified in the datasheet. Confirm that the 'A' designation indicates the absence of an internal pull-down resistor on the CE pin and lacks the CL auto-discharge feature found in B/D types. Ensure compatibility with the required output capacitor values for stable phase compensation at the 4.70V output level.

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

Select this part when a fixed 4.70V rail is required with minimal footprint using the SSOT-24 package. The A-type designation is suitable for applications where external pull-down resistors are preferred or where automatic output discharge upon shutdown is not necessary. Verify that the input voltage remains within the 1.6V to 6.0V range to ensure proper operation and ripple rejection performance.

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

This component belongs to the XC6221 series of high-speed, low-dropout CMOS regulators manufactured by Torex Semiconductor. The series is characterized by its ability to operate with low ESR ceramic capacitors and offers various package options including USP-4, SOT-25, SSOT-24, and USPN-4. The specific model integrates standard accuracy voltage settings with a compact form factor designed for space-constrained portable electronics.

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

XC6221B47ANR-G

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

Does the XC6221A47ANR-G automatically discharge the output capacitor when the CE pin is pulled low?

No, the 'A' designation indicates that this variant does not include the CL auto-discharge switch. Only the B and D types feature this internal discharge capability.

What is the logic level requirement for the CE pin on this specific model?

The CE pin requires an active-high signal. A voltage between 1.2V and 6.0V turns the device on, while a voltage below 0.3V turns it off. Since this is an 'A' type, there is no internal pull-down resistor.