TC1313-1H0EMFTR

Overview

The TC1313-1H0EMFTR is a dual-output power management IC manufactured by Microchip Technology, featuring a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) regulator. It operates within an input voltage range of 2.7 V to 5.5 V with a typical quiescent current of 57 µA. The device utilizes a DFN-10 package measuring 3 x 3 mm. The buck converter supports adjustable output voltages from 0.8 V to 4.5 V or standard fixed outputs, while the LDO provides a fixed 1.8 V output.

Feature Summary

• Integrates a high-efficiency synchronous buck regulator with automatic PWM-to-PFM mode transition for optimized light-load performance.
• Includes an independent low-dropout regulator capable of delivering up to 300 mA with internal compensation.
• Supports independent shutdown control for both the buck and LDO outputs to minimize standby power consumption.

Applications

• Portable battery-powered consumer electronics requiring efficient dual-rail power distribution
• Embedded systems utilizing single-cell lithium-ion or lithium-polymer batteries
• IoT devices needing compact power solutions with low quiescent current

Procurement Notes

Verify the specific suffix '1H0' confirms the 1.8 V fixed LDO output configuration against official Microchip documentation. Ensure the DFN-10 package dimensions and thermal characteristics match the target PCB layout requirements. Confirm RoHS compliance status and lead-free specifications prior to final procurement approval.

Selection Notes

Select this component when a compact dual-output solution is required from a single cell source. The integrated design reduces external component count compared to discrete regulators. Consider the 57 µA quiescent current for battery life optimization and verify that the 500 mA buck and 300 mA LDO currents meet the system load demands.

Part Context

This part belongs to the TC1313 family of dual-output regulators combining a synchronous buck converter with an LDO. The family offers various fixed and adjustable output configurations to suit different voltage rail requirements in portable applications. All variants share the same core architecture and package footprint.

Replacement Considerations

Check Microchip's official cross-reference lists for compatible alternatives. Verify pin compatibility and electrical parameters if substituting with other PMICs. No direct public substitute part numbers are confirmed in the provided data.