TC1304-VP0EMFTR

Overview

The TC1304-VP0EMFTR is a dual-output power management integrated circuit manufactured by Microchip Technology. It integrates a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) linear regulator within a single package. The device operates with an input voltage range of 2.7 V to 5.5 V, featuring a typical quiescent current of 65 µA. The buck converter utilizes a 2.0 MHz fixed-frequency PWM control scheme under heavy loads, transitioning automatically to pulse frequency modulation (PFM) during light load conditions to maintain high efficiency. The component is housed in a 10-pin DFN-10 package measuring 3 mm x 3 mm.

Feature Summary

• Integrates a 500 mA synchronous buck regulator and a 300 mA LDO for multi-rail power supply requirements
• Features automatic transition between PWM and PFM modes to optimize efficiency across varying load conditions
• Includes a power-good output signal with a 300 ms delay for system monitoring and sequencing
• Supports independent shutdown control for the buck and LDO outputs to manage power states

Applications

• Portable cellular telephones and mobile communication devices
• Battery-powered handheld instruments and personal digital assistants
• USB-powered peripheral equipment requiring multiple voltage rails
• Notebook computers and portable computing systems

Procurement Notes

Verify the specific suffix code VP0EMFTR against official Microchip documentation to confirm the exact output voltage configuration and packaging details. Ensure compatibility with the target PCB footprint, specifically the 3x3mm DFN-10 outline. Confirm that the required input voltage range aligns with the 2.7V to 5.5V specification before finalizing procurement orders.

Selection Notes

Select this component when a compact solution is needed to generate both switching and linear regulated voltages from a single source. It is suitable for designs prioritizing space savings over discrete component counts. Consider the internal compensation which simplifies external component selection. Verify if the fixed or adjustable output options meet the specific voltage requirements of the application circuits.

Part Context

The TC1304 belongs to the TC1303/TC1304 series of power management ICs introduced by Microchip Technology. This family is designed to provide efficient power solutions for portable electronics. The TC1304 variant specifically includes sequence control features, allowing coordinated startup and shutdown of its outputs. It complements other regulators in the portfolio by offering a combined switching and linear regulation approach in a small form factor.

Replacement Considerations

Consult official Microchip substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications carefully when considering equivalent parts from other manufacturers.