TC1304-VP0EMF

Overview

The TC1304-VP0EMF is a dual-output power management IC from Microchip Technology, integrating a 500 mA synchronous buck regulator and a 300 mA low-dropout linear regulator (LDO). It operates within an input voltage range of 2.7 V to 5.5 V. The device features a fixed 1.2 V output for the LDO and a fixed 1.8 V output for the buck converter. Total quiescent current is typically 65 µA. It utilizes a 10-pin DFN package measuring 3 x 3 mm with a height of 0.9 mm.

Feature Summary

• Integrates a 500 mA synchronous buck regulator and a 300 mA LDO on a single chip
• Includes a Power-Good output signal with a 300 ms delay for system monitoring
• Features automatic transition between PWM and PFM modes for optimized efficiency
• Provides independent shutdown control for both regulator outputs

Applications

• Portable electronic devices requiring multiple voltage rails
• USB-powered equipment and peripherals
• Handheld medical instruments
• Personal digital assistants (PDAs) and mobile phones

Procurement Notes

Verify the specific suffix VP0EMF against official Microchip documentation to confirm the fixed 1.2 V LDO and 1.8 V Buck output configuration. Ensure the DFN-10 package dimensions match your PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's latest datasheet or certification documents before finalizing procurement.

Selection Notes

Select this component when a compact solution is needed for generating two distinct regulated voltages from a single input source. The integrated Power-Good feature simplifies system sequencing and fault detection. Consider the thermal performance of the DFN-10 package relative to your expected load currents and ambient temperature conditions.

Part Context

This part belongs to the TC1303/TC1304 series introduced by Microchip Technology in 2005. The series was designed to provide high integration for portable applications, combining switching and linear regulation capabilities. The TC1304 variant specifically offers dual outputs with sequence control, distinguishing it from single-output regulators in the broader PMIC portfolio.

Replacement Considerations

Consult Microchip's official cross-reference tools for verified substitutes. Potential alternatives may include other dual-output PMICs from Microchip or competitors offering similar 500 mA buck and 300 mA LDO configurations in compatible packages.