XC6501B1717R-G

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

The XC6501B1717R-G is a high-speed, low-noise CMOS LDO regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 1.7V with a maximum output current of 200mA. The device operates within an input voltage range of 1.4V to 6.0V and achieves stable regulation without requiring an external load capacitor due to internal phase compensation. Key electrical parameters include a typical dropout voltage of 260mV at 100mA, a supply current of 13μA, and a ripple rejection ratio of 50dB at 1kHz. The part is housed in a USPN-4 package.

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

• Internal phase compensation enables stable operation without an external output capacitor.
• Integrated CL auto-discharge function rapidly discharges stored charge when the CE pin is set to low level.
• Fold-back current limit circuit provides short-circuit protection and output current limiting.

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 the specific ordering suffix against the manufacturer's datasheet to confirm package type and reel quantity. Ensure the design accounts for the CE pin logic levels and thermal dissipation requirements based on the selected PCB layout. Confirm RoHS compliance status through official documentation before finalizing procurement specifications.

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

Select this component for applications requiring low quiescent current and fast transient response without external output capacitors. The B-type designation indicates the inclusion of the CL auto-discharge feature, which is critical for systems needing rapid power-down discharge. Verify that the required output voltage falls within the supported range and that the package fits the available board space.

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

This component belongs to the XC6501 series of 200mA High Speed LDO Regulators. The series is characterized by its ability to operate stably without load capacitors, making it suitable for compact portable electronics. The 'B' variant specifically includes the CL auto-discharge switch, distinguishing it from other variants in the family that lack this functionality.

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

XC6501A1717R-G (Lacks CL auto-discharge)

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

Does the XC6501B1717R-G require an external output capacitor?

No, the device features internal phase compensation that allows for stable operation without an external load capacitor.

What is the function of the CE pin in the XC6501B series?

The CE pin controls the ON/OFF state. When set to low, it puts the circuit into stand-by mode and activates the internal auto-discharge switch to quickly pull the VOUT pin to the VSS level.