XC6701B392MR-G

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

The XC6701B392MR-G is a positive fixed-output voltage regulator IC manufactured by Torex Semiconductor using CMOS process technology. It features an input voltage range of 2.0V to 28.0V and provides a nominal output voltage of 3.9V with ±2.0% accuracy. The device supports a maximum output current exceeding 150mA and includes built-in overcurrent protection and thermal shutdown circuits. It operates within an ambient temperature range of -40°C to +85°C and utilizes internal phase compensation, allowing compatibility with low ESR ceramic capacitors.

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

• Integrated Chip Enable (CE) function for active high control and standby mode operation
• Internal phase compensation enables stable operation with low ESR ceramic output capacitors
• Built-in overcurrent protection circuit with fold-back characteristics
• Thermal shutdown circuit protects the driver transistor from excessive junction temperatures

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

• Car audio systems
• Car navigation systems
• Mobile devices and terminals
• Smart phones and mobile phones
• Multi-function power supplies

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

Verify the specific package type SOT-25 and the presence of the CE pin functionality when sourcing this component. Confirm that the ordering suffix MR-G corresponds to the correct reel packaging quantity as defined in the manufacturer's documentation. Ensure the selected part matches the required output voltage tolerance and operating temperature range specifications.

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

Select this regulator for applications requiring a fixed 3.9V output from a wide input voltage range up to 28V. The internal phase compensation simplifies design by permitting the use of small ceramic capacitors. Consider the CE pin requirement for system power management and ensure adequate thermal dissipation for the SOT-25 package under maximum load conditions.

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

This component belongs to the XC6701 series of high-speed voltage regulators. The series offers various output voltages selectable in 0.1V increments via laser trimming. The 'B' designation indicates an operating temperature range of -40°C to +85°C, while the 'MR-G' suffix specifies the SOT-25 surface-mount package and compliance with environmental standards.

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

XC6701B392PR-G

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

What is the purpose of the CE pin on the XC6701B392MR-G?

The CE (Chip Enable) pin allows the user to turn the output ON or OFF. A high level activates the regulator, while a low level shuts it down, reducing power consumption to standby levels.

Can the XC6701B392MR-G operate without an external output capacitor?

Yes, the IC features internal phase compensation, which ensures stability even without an external output capacitor, although manufacturers recommend using one for optimal transient response.