XC6501P391HR-G

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

The XC6501P391HR-G is a three-terminal, output capacitor-less CMOS LDO regulator from Torex Semiconductor. It provides a fixed 3.9V output with a maximum current of 200mA. The device operates within an input voltage range of 1.4V to 6.0V and features internal phase compensation for stability without external load capacitors. Key electrical characteristics include a typical dropout voltage of 150mV at 100mA, a supply current of 13μA, and ripple rejection of 50dB at 1kHz. It includes built-in current limit and short circuit protection circuits.

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

• Internal phase compensation eliminates the need for external output capacitors.
• Three-terminal configuration lacks a control enable pin.
• Integrated fold-back current limiting and short circuit protection.

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 package type USP-3 and the fixed 3.9V output voltage against the design requirements. Confirm that the absence of a CE pin aligns with the system's power management strategy, as this variant cannot be actively disabled via logic signals. Ensure compliance with RoHS standards if required by the target market regulations.

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

Select this component when a simple, low-pin-count solution is required without active shutdown capabilities. The USP-3 package offers a compact footprint suitable for space-constrained designs. Consider the 13μA quiescent current for battery-powered applications where standby consumption is critical but active disablement is not needed.

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

This part belongs to the XC6501 series, which are high-speed, low-noise LDO regulators designed for stable operation without load capacitors. The 'P' designation indicates a three-terminal version without a Control Enable (CE) pin, distinguishing it from A, B, C, and D types that feature CE functionality. The HR-G suffix specifies the USP-3 package with halogen-free and RoHS-compliant construction.

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

Direct substitutes within the same series include other XC6501P variants with different fixed output voltages, such as XC6501P381HR-G or XC6501P401HR-G, provided the voltage requirement changes. Cross-series replacements require verifying package compatibility and electrical parameters like dropout voltage and current limits.