XC6501B45AGR-G

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

The XC6501B45AGR-G is a high-speed, low-noise CMOS LDO regulator from Torex Semiconductor. It provides a fixed output voltage of 4.5V 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, allowing stable operation without an external load capacitor (CL). It includes a CE pin for standby control, reducing supply current to less than 0.1μA. Key electrical parameters include a typical dropout voltage of 230mV at 100mA, a ripple rejection ratio of 50dB at 1kHz, and a line regulation of 0.1%/V. The part is housed in a USP-4 package.

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

• Internal phase compensation enables stable operation without requiring an external output capacitor.
• Built-in CL auto-discharge function rapidly pulls the output voltage to ground when the CE pin is set to low level.
• Fold-back current limit circuit provides short-circuit protection and limits output current during overload conditions.

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

• Smart phones
• Portable games
• Wireless modules
• Bluetooth devices
• Digital-TV tuners

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

Verify that the specific ordering suffix matches the required package type and environmental compliance standards. Confirm that the fixed output voltage aligns with the target circuit design requirements. Ensure that the input voltage remains within the specified operational range to maintain proper regulation and prevent damage to the component.

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

Select this regulator for applications requiring a fixed 4.5V output with up to 200mA load capability. Consider the USP-4 package size for space-constrained designs. Evaluate the need for the CL discharge feature if rapid power-down is required. Compare performance metrics such as dropout voltage and quiescent current against alternative regulators in the series.

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

This component belongs to the XC6501 series of high-speed LDO regulators. The 'B' designation indicates it has a CE pin active-high with CL discharge functionality. The '45' specifies the 4.5V output voltage. The 'AGR-G' suffix denotes the USP-4 package and RoHS compliance. This series is designed for portable electronic devices requiring efficient power management.

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

XC6501B45AMR-G

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

Does the XC6501B45AGR-G require an external output capacitor?

No, the device features internal phase compensation, allowing it to operate stably without an external load capacitor (CL).

What is the function of the CE pin on this regulator?

The CE pin controls the ON/OFF state. A high signal turns the regulator on, while a low signal activates standby mode and engages the internal auto-discharge switch to pull the output to VSS.