XC6210A49AMR-G

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

The XC6210A49AMR-G is a positive voltage low dropout regulator from the XC6210 series, fabricated using CMOS process. It provides a fixed output voltage of 4.95V 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 approximately 23mV at 100mA. It features built-in current limiters, short-circuit protection, and a CE pin for standby control.

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

• High-speed regulation with low ON resistance driver transistor for extended battery life
• Built-in phase compensation circuit compatible with low ESR ceramic capacitors
• Foldback current limiter providing both output current limiting and output pin protection
• CE pin enables stand-by mode to significantly reduce 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 MR-G indicates SOT-25 packaging in reels of 3,000 units. Confirm the 'A' designation corresponds to High Active CE logic with an internal pull-down resistor. Ensure compliance requirements match EU RoHS standards as indicated by the -G suffix. Cross-reference the output voltage code 49 against the datasheet voltage chart to confirm the 4.95V setting.

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

Select this component when a stable 4.95V rail is required with high current capability up to 700mA. The A-type configuration is suitable for systems requiring active-high enable signals with defined default states due to the internal pull-down resistor. Ensure input voltage remains within the 1.5V to 6.0V range and verify thermal dissipation limits for the SOT-25 package under expected load conditions.

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

This part belongs to the XC6210 series of high-current, high-speed LDO regulators manufactured by Torex Semiconductor. The series utilizes a specialized CMOS process to achieve low noise and precise voltage regulation. The XC6210A variant specifically integrates a pull-down resistor on the Control Enable (CE) pin, distinguishing it from B, C, and D types which offer different enable logic configurations.

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

XC6210A49AMR

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

What is the function of the CE pin on the XC6210A49AMR-G?

The CE pin controls the operational state. For the A-series, a High signal activates the regulator, while a Low signal or Open state places the IC in stand-by mode. An internal pull-down resistor ensures the device defaults to stand-by if the pin is left open.

How does the current limiter operate in this regulator?

The IC features a foldback current limiter circuit. When the output current reaches the limit level, the output voltage drops, causing the foldback circuit to further reduce the output current. This also serves as short-circuit protection, limiting the short-circuit current to approximately 50mA.