TC1313-ZP0EMF

Overview

The TC1313-ZP0EMF 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 LDO output provides a fixed 1.8 V supply, while the buck converter supports adjustable outputs from 800 mV to 4.5 V or standard fixed voltages. The device features a typical total quiescent current of 57 µA and maintains operation across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-efficiency synchronous buck regulator with a separate low-dropout linear regulator in a single package
• Provides independent shutdown control for both the switching and linear regulator outputs
• Features automatic transition between pulse-width modulation and pulse-frequency modulation modes based on load conditions
• Includes internal compensation for both regulator channels to simplify external component requirements

Applications

• Portable electronic devices requiring multiple regulated voltage rails
• Battery-powered systems needing efficient power conversion and low standby consumption
• Embedded applications utilizing microcontrollers or digital signal processors
• Communication equipment requiring stable power supplies with low noise characteristics

Procurement Notes

Verify the specific suffix ZP0EMF against official Microchip documentation to confirm the fixed 1.8 V LDO output configuration. Ensure the DFN-10 package dimensions align with your PCB footprint design. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.

Selection Notes

Select this component when a compact solution is required for generating two distinct voltage levels from a single input source. The integrated nature reduces board space compared to discrete solutions. Consider the 57 µA quiescent current for battery life optimization. Verify that the 500 mA buck and 300 mA LDO current ratings meet the peak load demands of the target application circuits.

Part Context

This part belongs to the TC1313 family of dual-output regulators designed for space-constrained portable electronics. The series combines switching efficiency with linear regulation simplicity. Variants within the family differ primarily by the fixed output voltage of the LDO channel or the programming settings of the buck converter, all sharing the same core architecture and pinout.

Replacement Considerations

Check Microchip's official cross-reference lists for direct replacements. Ensure any substitute maintains the DFN-10 package and identical electrical characteristics for both the buck and LDO sections.