TC1304-ZP0EUNTR

Overview

The TC1304-ZP0EUNTR is a dual-output power management IC from Microchip Technology, integrating a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) linear regulator. It operates within an input voltage range of 2.7 V to 5.5 V and features a fixed switching frequency of 2.0 MHz for the buck converter. The device utilizes current-mode control with automatic transition between PWM and PFM modes to optimize efficiency across varying load conditions. It includes independent shutdown controls for both outputs and provides a power-good signal with a 300 ms delay. The component is housed in a 10-lead MSOP package and supports operation temperatures from -40°C to +85°C.

Feature Summary

• Integrates a high-efficiency synchronous buck regulator and a low-noise LDO in a single compact package
• Features automatic transition between pulse-width modulation and pulse-frequency modulation modes for optimized light-load efficiency
• Provides independent shutdown control for both the buck and LDO outputs to manage system power states
• Includes a power-good output indicator with a specified delay time to ensure stable sequencing

Applications

• Portable consumer electronics requiring efficient multi-rail power distribution
• Battery-powered devices needing extended runtime through optimized power conversion
• Embedded systems utilizing microprocessors or memory components with distinct voltage requirements

Procurement Notes

Verify the specific suffix code against official Microchip documentation to confirm output voltage configurations and pin compatibility. Ensure that the ordering quantity aligns with manufacturer reel specifications. Confirm RoHS compliance status and moisture sensitivity level ratings prior to integration into surface-mount assembly processes.

Selection Notes

Select this component when a design requires simultaneous generation of two regulated voltages from a single input source. It is suitable for applications prioritizing board space reduction and simplified bill of materials. Consider the thermal performance characteristics inherent to the MSOP-10 package when determining heat dissipation requirements for the intended operating environment.

Part Context

This part belongs to the TC1304 family of dual-output regulators designed by Microchip Technology. The series combines switching and linear regulation technologies to address diverse power needs in portable applications. Variants within the family typically share core architectural features while differing in output voltage settings or control interfaces defined by their specific ordering suffixes.

Replacement Considerations

Consult official Microchip substitution guides for verified alternative part numbers. Cross-reference technical parameters such as output current capabilities, package dimensions, and electrical specifications to ensure functional equivalence without redesigning the surrounding circuitry.