XC6209B46AMR-G

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

The XC6209B46AMR-G is a fixed positive low-dropout (LDO) voltage regulator manufactured by Torex Semiconductor using CMOS processes. It provides a fixed output voltage of 4.6V with a maximum output current of 150mA. The device operates within an input voltage range of 2.0V to 10.0V and features a typical dropout voltage of 200mV at 100mA load. Key electrical parameters include a quiescent current of 25μA, high ripple rejection of 70dB at 10kHz, and voltage regulation accuracy of ±2%. It utilizes a SOT-25-5 surface-mount package and supports operation across a temperature range of -40°C to +85°C.

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

• Integrates a foldback current limiter that functions as short-circuit protection for the output pin and internal current limiter.
• Compatible with low ESR ceramic capacitors to ensure output stability and maintain excellent transient response during load fluctuations.
• Includes a Control Enable (CE) function that allows the output to be turned off, significantly reducing power consumption in standby modes.

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

• Wireless communication equipment
• Portable games and handheld devices
• Cameras and video recorders
• Battery-powered portable AV equipment

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

Verify the specific suffix 'MR-G' against the manufacturer's official documentation to confirm the reel packaging quantity and RoHS compliance status. Ensure the selected part number matches the required 4.6V fixed output specification. Cross-reference the SOT-25-5 package dimensions with your PCB footprint library. Confirm thermal dissipation requirements align with the 250mW power dissipation rating under your specific operating conditions.

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

Select this component when a stable 4.6V rail is required from a supply voltage between 2.0V and 10.0V. It is suitable for battery-operated applications due to its low 25μA quiescent current. Choose this variant over adjustable types if a fixed precision voltage is needed without external resistors. Ensure the load current does not exceed 150mA and verify that the input-output differential remains above the minimum dropout voltage for the expected load.

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

This device belongs to the XC6209 series of high-speed LDO regulators designed for portable electronics. The series is characterized by high precision, low noise, and compatibility with small ceramic output capacitors. It integrates a voltage reference, error amplifier, phase compensation circuit, and driver transistor on a single CMOS chip. The B-series designation typically indicates specific output voltage tolerances and package configurations within the broader product family.

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

Direct substitutes within the same series include other XC6209B variants with different fixed output voltages, such as XC6209B33AMR-G or XC6209B50AMR-G, provided the voltage requirement differs. For functional replacements with identical pinouts and specifications, verify equivalent LDOs from other manufacturers offering 4.6V output, 150mA current, and SOT-25-5 packaging.