XC6210B44AMR-G

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

The XC6210B44AMR-G is a positive voltage low dropout regulator from Torex Semiconductor, fabricated using CMOS process. It provides a fixed output voltage of 4.45V 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 41.5µA, ripple rejection of 60dB at 1kHz, and a dropout voltage of approximately 23mV at 100mA load. 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

• Integrates a P-channel driver transistor with low ON resistance to maximize battery usage time by minimizing the input-output voltage differential.
• Includes a foldback current limiter circuit that functions as both output current limiting and output pin protection during overload or short-circuit conditions.
• Supports standby mode via the CE (Chip Enable) pin, significantly reducing power consumption when the internal regulator circuit is deactivated.
• Compatible with low ESR ceramic capacitors due to built-in phase compensation, ensuring stable output voltage without requiring specific capacitor types.

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 complete part number against official Torex Semiconductor documentation to ensure correct configuration. Confirm that the 'B' designation matches the required High Active logic with no pull-down resistor on the CE pin. Ensure the '44A' suffix corresponds to the specific 4.45V output voltage and accuracy class. Validate the '-MR-G' suffix for the SOT-25 package and Halogen-free compliance before finalizing procurement specifications.

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

Select this component when a fixed 4.45V rail is required with high current capability up to 700mA. The B-type CE pin logic requires external driving; do not leave the pin open to avoid unstable operation. Consider the thermal dissipation limits in the SOT-25 package based on the voltage drop across the regulator. Ensure input and output capacitors meet the minimum capacitance requirements specified for the 4.45V output range to maintain stability.

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

This device belongs to the XC6210 series of High Current, High Speed LDO Regulators. The series utilizes Torex's proprietary CMOS technology to achieve low noise and high precision. The XC6210 family offers various output voltages in 0.05V increments and multiple package options including SOT-25, SOT-89-5, and USP-6B. The B-series specifically denotes regulators with High Active CE logic lacking an internal pull-down resistor.

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

XC6210B44AMR