TC1073-4.0VCH713

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

The TC1073-4.0VCH713 is a fixed-output low dropout (LDO) linear voltage regulator manufactured by Microchip Technology, providing a stable 4.0 V output with a maximum continuous current of 100 mA. It operates within an input voltage range of 2.7 V to 6 V and features a typical dropout voltage of 85 mV at full load. The device incorporates a power-saving shutdown mode that reduces supply current to a maximum of 0.5 µA. It includes an error output pin for monitoring regulation status and offers overcurrent and overtemperature protection. The unit is housed in a space-saving SOT-23-6 package and supports operation from -40°C to +125°C.

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

• CMOS construction designed to eliminate wasted ground current, significantly extending battery life in portable applications.
• Integrated error output asserts when the device is out-of-regulation, functioning as a low battery detector or processor reset generator.
• Includes a bypass input option to enable ultra-quiet operation with reduced output noise.
• Provides comprehensive protection against overcurrent conditions and excessive junction temperatures.

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

• Battery-operated systems requiring extended operational life through low quiescent current consumption.
• Portable electronic devices utilizing the error output for low battery warning indicators.
• Embedded systems where the error signal serves as a processor reset generator via external RC networks.
• Noise-sensitive circuits benefiting from the optional bypass input for ultra-quiet performance.

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

Verify the specific suffix CH713 to confirm the SOT-23-6 surface-mount packaging configuration. Ensure the required output voltage matches the fixed 4.0 V specification, as the TC1073 series offers multiple standard options. Confirm compliance requirements such as RoHS status directly with the manufacturer documentation before procurement. Check lead times as production schedules may vary based on factory allocation.

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

Select this component when a fixed 4.0 V rail is needed with minimal voltage drop under 100 mA loads. The CMOS architecture makes it superior to older bipolar regulators for battery-powered designs due to lower ground current. Consider the error output feature if system-level monitoring for undervoltage or overload conditions is required without additional external logic.

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

This part belongs to the TC1073 family of high-accuracy CMOS LDOs, serving as a direct upgrade to legacy bipolar regulators. The family shares common features including shutdown modes, error outputs, and compact SOT-23-6 packaging. Variants differ primarily by their fixed output voltage settings, ranging from 1.8 V to 5.0 V, while maintaining identical electrical characteristics and pinouts for easy substitution.

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

Direct pin-compatible upgrades are available for older bipolar low dropout regulators. Verify that substitute components support the same 100 mA output current and 6 V maximum input voltage limits. Ensure replacement parts offer comparable dropout voltages and include similar protection features like overcurrent and thermal shutdown.