XC6501B20AGR-G

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

The XC6501B20AGR-G is a high-speed, low-noise CMOS LDO regulator from Torex Semiconductor. It provides a fixed output voltage of 2.0V with a maximum output current of 200mA. The device operates within an input voltage range of 1.4V to 6.0V and features internal phase compensation, eliminating the need for an external load capacitor. Key electrical parameters include a typical supply current of 13μA, a standby current of less than 0.1μA, and a ripple rejection ratio of 50dB at 1kHz. It includes built-in protection circuits such as current limit and short-circuit protection.

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

• Internal phase compensation allows stable operation without an external load capacitor.
• Integrated auto-discharge function rapidly pulls the output voltage to ground when disabled.
• Fold-back current limit circuit provides short-circuit protection and output current limiting.
• CE pin enables shutdown mode with ultra-low standby current consumption.

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

• Smart phones and mobile phones
• Portable game devices
• Wireless and camera modules
• Bluetooth modules
• Digital-TV tuners

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

Verify the specific package type USP-4 and the ordering suffix GR-G against the manufacturer's latest documentation to ensure compliance with halogen-free and RoHS standards. Confirm that the CE pin logic level requirements match the system design, as this variant lacks a pull-down resistor. Ensure input and output capacitors are placed close to the IC to maintain stability.

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

Select this component when a fixed 2.0V output is required with minimal external components due to the capless design. The B-series designation indicates the presence of the CL auto-discharge feature, which is critical for applications requiring rapid output voltage decay upon shutdown. Consider the 13μA supply current for battery-powered systems where low quiescent power consumption is essential.

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

This part belongs to the XC6501 series of 200mA High Speed LDO Regulators. The series is characterized by its ability to operate stably without an output capacitor, a feature achieved through internal phase compensation. The 'B' in the model number specifies the regulator type with CE high active control and integrated CL discharge functionality, distinguishing it from other variants in the family.

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

XC6501A20AGR-G: Similar performance but lacks the CL auto-discharge feature.

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

Does the XC6501B20AGR-G require an external output capacitor?

No, the device utilizes internal phase compensation to ensure stable operation without an external load capacitor (CL).

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

When the CE pin is set to a low level, the internal auto-discharge switch activates, rapidly discharging any charge stored on an external capacitor and pulling the VOUT pin to the VSS level.