TC1313-ZD0EMFTR

Overview

The TC1313-ZD0EMFTR 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 Regulator (LDO). The device operates with an input voltage range of 2.7 V to 5.5 V, featuring a typical quiescent current of 57 µA. The buck converter supports a fixed switching frequency of 2.0 MHz and offers adjustable output voltages from 0.8 V to 4.5 V. The LDO provides a fixed output voltage of 3.0 V. The component is housed in a 10-pin, 3 mm x 3 mm DFN package.

Feature Summary

• Combines a high-efficiency synchronous buck regulator with a low-dropout linear regulator for multi-voltage applications
• Features independent shutdown controls for both the buck and LDO outputs to manage power consumption
• Includes automatic transition between PWM and PFM modes to optimize efficiency across varying load conditions
• Provides comprehensive protection mechanisms including overtemperature and output short-circuit protection

Applications

• Cellular phones and mobile communication devices
• Portable computers and handheld organizers
• USB-powered electronic devices
• Handheld medical instruments

Procurement Notes

Verify the specific suffix code to confirm the fixed LDO output voltage, as variations exist within the TC1313 family. Ensure compatibility with the required 10-pin DFN footprint and thermal requirements. Confirm RoHS compliance and lead-free status during sourcing. Cross-reference the manufacturer's latest datasheet for any updates on operating temperature ranges or pin configurations before finalizing procurement.

Selection Notes

Select this component when a design requires two distinct supply rails from a single source, such as a processor core voltage and a bias voltage. The integrated solution reduces component count compared to discrete regulators. Consider the 2.0 MHz switching frequency for balancing electromagnetic interference and passive component size. Verify that the 500 mA buck current rating meets the peak load requirements of the primary logic circuitry.

Part Context

This part belongs to the TC1313 series of dual-output regulators designed for space-constrained portable electronics. The series combines switching and linear regulation technologies to maximize battery life while maintaining stable power delivery. The ZD0 suffix specifically denotes the fixed 3.0 V output configuration for the LDO section, distinguishing it from other variants with different fixed voltages.

Replacement Considerations

Direct substitutes include other TC1313 variants with different LDO output voltages, such as TC1313-UD0EMFTR or TC1313-OS3EMFTR, provided the system can accommodate the alternative voltage levels. Ensure any replacement maintains the same 10-pin DFN package and electrical characteristics.