TC1304-ZP0EMFTR

Overview

The TC1304-ZP0EMFTR 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, with a typical nominal input of 3.6 V. The device features a 2.0 MHz fixed-frequency PWM switching mode for heavy loads and automatically transitions to PFM mode under light loads. It includes a Power-Good output with a 300 ms delay and supports adjustable output voltages from 0.8 V to 4.5 V or standard fixed outputs. The component is housed in a 10-pin DFN-10 package measuring 3 x 3 mm.

Feature Summary

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

Applications

• Portable cellular telephones and mobile devices
• Notebook computers and laptop systems
• USB-powered peripheral devices
• Handheld medical instruments
• Personal Digital Assistants (PDAs)

Procurement Notes

Verify the specific suffix ZP0EMFTR against official Microchip documentation to confirm the exact output voltage configuration and packaging details. Ensure compatibility with required thermal dissipation standards for the DFN-10 package. Confirm that the 3.6 V nominal input aligns with the system's power rail requirements before finalizing procurement orders.

Selection Notes

Select this component when a compact solution is needed for multi-voltage portable systems requiring both high-efficiency switching and clean linear regulation. The internal compensation simplifies design by reducing external component count. Consider the 65 µA quiescent current for battery life optimization and verify that the 2.0 MHz switching frequency fits electromagnetic interference constraints.

Part Context

The TC1304 belongs to the TC1303/TC1304 series introduced by Microchip Technology around 2005. This family targets applications demanding high integration and low power consumption. The TC1304 variant specifically provides sequence control capabilities via its Power-Good pin, distinguishing it from simpler regulators while maintaining a small footprint suitable for space-constrained electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.