TC1304-VI0EMF

Overview

The TC1304-VI0EMF 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. The device provides fixed output voltages of 1.2 V for the LDO and 2.5 V for the buck converter. Typical quiescent current is 65 µA. The package is DFN-10 with dimensions of 3 mm x 3 mm. Operating temperature ranges from -40°C to +85°C.

Feature Summary

• Integrates a 500 mA synchronous buck regulator and a 300 mA LDO in a single compact package.
• Features a Power-Good output signal with a 300 ms delay for system monitoring.
• Supports automatic transition between PWM and PFM modes for optimized efficiency across load conditions.
• Includes internal compensation for both regulators to simplify external component requirements.

Applications

• Portable electronic devices requiring multiple regulated voltage rails
• USB-powered equipment and peripherals
• Cellular telephones and mobile communication modules
• Personal digital assistants (PDAs) and handheld instruments

Procurement Notes

Verify the specific suffix VI0EMF against the official Microchip datasheet to confirm the exact fixed output voltage configuration of 1.2 V and 2.5 V. Ensure the DFN-10 package variant matches your PCB footprint design. Confirm RoHS compliance status through the manufacturer's product compliance documentation before finalizing procurement specifications.

Selection Notes

Select this component when a compact solution is needed for systems requiring both switching regulation efficiency and LDO noise performance. The fixed 2.5 V buck and 1.2 V LDO outputs suit applications where these specific rails are standard. Consider the 65 µA quiescent current for battery-operated designs. Verify that the 2.7 V minimum input voltage aligns with the source supply characteristics.

Part Context

The TC1304 belongs to the TC1303/TC1304 series of dual-output regulators designed by Microchip Technology. This series targets portable electronics by combining a synchronous buck converter with an LDO. The VI0EMF designation specifies the fixed output voltage combination and the DFN-10 surface-mount package type within this family.

Replacement Considerations

Check for TC1304 variants with different output voltage suffixes if alternative voltage levels are required. The TC1303 series offers similar functionality but may include independent shutdown controls not present in the TC1304. Verify pin compatibility and thermal performance when substituting.