TC1304-VI0EUNTR

Overview

The TC1304-VI0EUNTR is a dual-output power management integrated circuit manufactured by Microchip Technology, housed in an MSOP-10 surface-mount package. It integrates a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) linear regulator within a single device. The buck converter operates with a fixed 2.0 MHz switching frequency and supports adjustable output voltages ranging from 0.8 V to 4.5 V, as well as standard fixed outputs including 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. The LDO provides independent shutdown capability. The component functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 500 mA synchronous buck regulator and a 300 mA low-dropout regulator for efficient dual-rail power generation.
• Features automatic transition between pulse-width modulation and pulse-frequency modulation modes to optimize efficiency under varying load conditions.
• Includes a power-good output signal with a defined delay to indicate stable regulation status.
• Provides independent shutdown control for both the buck and LDO outputs to manage system power states.

Applications

• Portable electronic devices requiring multiple regulated voltage rails
• Battery-powered systems needing high-efficiency step-down conversion
• Embedded applications utilizing microprocessors or memory components

Procurement Notes

Verify the specific suffix code to confirm the exact output voltage configuration, as the base part number covers multiple variants. Confirm the MSOP-10 package type matches your PCB footprint requirements. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Check humidity sensitivity levels for proper storage and reflow soldering profiles during assembly.

Selection Notes

Select this component when space-constrained designs require both switching and linear regulation capabilities. The internal compensation simplifies external component selection compared to discrete solutions. Consider the thermal performance of the MSOP-10 package relative to your expected current loads. Verify that the input voltage range aligns with your system's power source specifications.

Part Context

This device belongs to the TC1303/TC1304 family of power management ICs designed for portable electronics. It shares architectural similarities with other Microchip PMICs but is distinguished by its specific combination of a 500 mA buck and 300 mA LDO. The family targets applications demanding high efficiency and minimal external component counts.

Replacement Considerations

Consult official Microchip documentation for direct pin-compatible substitutes. Verify electrical parameters such as output current ratings and switching frequencies before substituting with similar dual-regulator ICs from other manufacturers.