XC6217B37AMR-G

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

The XC6217B37AMR-G is a fixed-output linear voltage regulator from the Torex XC6217 series, housed in an SOT-25 package. It provides a nominal output voltage of 3.7V with a maximum continuous output current of 200mA. The device operates within an input voltage range of 1.6V to 6.0V and features a low dropout voltage of 80mV at 100mA load. It incorporates Green Operation (GO) technology for automatic switching between high-speed and power-save modes, achieving a typical supply current of 4.5µA in power-save mode. The regulator includes built-in overcurrent protection and utilizes a CE pin for shutdown control.

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

• Integrates Green Operation (GO) function for automatic switching between high-speed operation and low-power consumption modes based on load current levels.
• Features a built-in auto-discharge circuit that rapidly pulls the output voltage to ground level upon shutdown via the CE pin.
• Includes internal foldback current limiting and short-circuit protection to safeguard the device under fault conditions.
• Compatible with low ESR ceramic capacitors for stable phase compensation without requiring external components.

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

• Smart phones
• Mobile phones
• Portable game consoles
• Digital still cameras
• Camcorders

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

Verify the specific output voltage tolerance and package variant against the official datasheet before integration. Confirm that the application design accounts for the thermal dissipation limits associated with the SOT-25 package under expected operating conditions. Ensure input and output capacitor values meet the stability requirements specified in the manufacturer's documentation.

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

Select this component when a fixed 3.7V rail is required with minimal quiescent current draw during light loads. The inclusion of the auto-discharge feature makes it suitable for applications requiring rapid output voltage decay. Verify that the input voltage remains within the 1.6V to 6.0V range to ensure proper regulation and avoid entering dropout or absolute maximum rating violations.

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

This part belongs to the XC6217 series of 200mA High Speed LDO Voltage Regulators manufactured by Torex Semiconductor. The series is fabricated using CMOS process technology and is designed for portable electronic devices requiring efficient power management. The 'B' designation indicates the presence of the CL discharge resistor, while 'MR-G' specifies the SOT-25 package and RoHS compliance.

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

Consult the official Torex XC6217 series selection guide for verified substitute part numbers with compatible output voltages and package types. Cross-referencing should be limited to parts explicitly listed as interchangeable within the manufacturer's documentation.