XC6220B21BPR-G

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

The XC6220B21BPR-G is a CMOS low dropout regulator from Torex Semiconductor, housed in an SOT-89-5 package. It provides a fixed output voltage of 2.1V with a maximum continuous output current of 1A. The device features Green Operation technology, automatically switching between high-speed and power-save modes to minimize supply current, which drops to 8μA typical in power-save mode. It operates within an input voltage range of 1.6V to 6.0V and includes built-in thermal shutdown, over-current protection, and CL auto-discharge capabilities.

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

• Integrates Green Operation function for automatic switching between high-speed and power-save modes based on load conditions
• Features CL auto-discharge circuitry specific to the B-series type for rapid output capacitor discharge upon shutdown
• Includes internal inrush current prevention circuit to limit startup surge currents
• Built-in thermal shutdown and over-current protection circuits ensure operational safety

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

• Optical disk drives
• Magnetic disk drives
• Digital still cameras and camcorders
• Digital audio equipment

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

Verify the complete part number against official Torex Semiconductor documentation to confirm the specific CE pin configuration and output voltage tolerance. Ensure that the required ceramic output capacitance aligns with the datasheet recommendations for stable phase compensation at the selected operating temperature range.

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

Select this component when a fixed 2.1V rail is required with high efficiency under varying loads. The B-series designation indicates the inclusion of CL auto-discharge functionality. Confirm that the system's standby requirements are compatible with the power-save mode transition characteristics and that the SOT-89-5 package thermal dissipation meets the application's power loss constraints.

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

This device belongs to the XC6220 series of 1A LDO regulators. The 'B' suffix denotes a standard version equipped with CL auto-discharge but without a CE pull-down resistor. The 'PR-G' suffix specifies the SOT-89-5 surface-mount package and compliance with RoHS standards. This variant is distinct from A, C, and D series types which differ in CE control logic and discharge mechanisms.

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

Cross-reference with other XC6220B variants sharing the SOT-89-5 package if different output voltages are needed. Verify functional compatibility regarding the CL auto-discharge feature when substituting with non-B series types.