XC6210A45APR-G

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

The XC6210A45APR-G is a positive voltage low dropout regulator from Torex Semiconductor, fabricated using CMOS process. It provides a fixed output voltage of 4.5V with an accuracy of ±2%. The device supports a maximum output current exceeding 700mA and operates within an input voltage range of 1.50V to 6.00V. Key electrical characteristics include a typical supply current of 35μA, high ripple rejection of 60dB at 1kHz, and a dropout voltage of 23mV at 100mA. It features built-in current limiters, short-circuit protection, and a CE pin for standby control. The component is housed in a SOT-89-5 package.

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

• Integrates a P-channel MOSFET driver transistor with low ON resistance to minimize power loss and extend battery life.
• Includes a foldback current limiter circuit that functions as both output current limiting and output pin protection.
• Compatible with low ESR ceramic capacitors due to built-in phase compensation circuits for enhanced stability.
• Features a CE (Chip Enable) pin allowing the internal regulator circuit to enter a stand-by mode with significantly reduced power consumption.

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

• Optical disk drives
• Magnetic disk drives
• Digital still cameras and camcorders
• Digital audio equipment
• Multi-function power supplies

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

Verify the specific ordering suffix 'PR' corresponds to the SOT-89-5 package configuration required for your design. Confirm the '-G' suffix indicates compliance with EU RoHS standards and absence of halogen and antimony. Ensure the CE pin logic matches the system control signals, as this A-type variant requires a High Active signal with an internal pull-down resistor.

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

Select this part when a fixed 4.5V output is required with high current capability up to 700mA. The SOT-89-5 package offers higher thermal dissipation compared to smaller packages. Consider the 2% voltage accuracy tolerance suitable for general-purpose applications. Verify that the input voltage remains within the 1.5V to 6.0V range and that the load requirements do not exceed the thermal limits defined for the chosen PCB mounting conditions.

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

This component belongs to the XC6210 series of high-speed LDO regulators designed for portable electronic devices. The series utilizes a specialized CMOS process to achieve low quiescent current while maintaining high output drive capability. The XC6210A variant specifically denotes a Control Enable pin that is active-high with an integrated pull-down resistor, distinguishing it from other series types with different logic levels or external resistor requirements.

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

XC6210A452MR-G

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

What is the minimum output capacitor value required for stable operation?

For an output voltage of 4.5V, which falls within the 1.80V to 5.00V range, a minimum output capacitor (CL) of 1.0μF is required. Ceramic capacitors are recommended.

How does the CE pin function on the XC6210A series?

The CE pin on the XC6210A series is High Active and includes an internal pull-down resistor. Applying a High signal activates the regulator, while a Low signal places the device in stand-by mode.

What protection features are included in the IC?

The IC includes a built-in constant current limiter circuit and a short-circuit protection mechanism. The current limiter employs a foldback circuit to reduce output current further during overload conditions.