TC1313-ZS0EUN

Overview

The TC1313-ZS0EUN is a dual-output power management IC from Microchip Technology, integrating a 500 mA synchronous buck regulator and a 300 mA low-dropout regulator (LDO). It operates within an input voltage range of 2.7 V to 5.5 V. The buck output provides adjustable voltages from 0.8 V to 4.5 V or standard fixed options including 1.5 V. The LDO output is fixed at 1.5 V. The device features a total quiescent current of 57 µA typical and utilizes a 10-pin MSOP package.

Feature Summary

• Integrates a 500 mA synchronous buck converter with a 300 mA LDO in a single package
• Provides independent shutdown control for both the buck and LDO outputs
• Features automatic transition between PWM and PFM modes for optimized efficiency
• Includes internal compensation for both regulator outputs to simplify design

Applications

• Portable battery-powered consumer electronics
• Embedded systems requiring multiple regulated voltage rails
• Industrial control modules with space constraints
• IoT devices needing efficient power management

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm the exact output voltage configuration and package type. Ensure compliance with RoHS standards and check moisture sensitivity levels prior to assembly. Confirm that the ordering suffix matches the required electrical characteristics for the target application.

Selection Notes

Select this component when a compact solution is needed for generating two distinct voltage rails from a single input source. Consider the 500 mA buck capacity for primary loads and the 300 mA LDO for noise-sensitive circuits. Evaluate the thermal performance requirements based on the expected load currents and ambient operating temperatures.

Part Context

This part belongs to the TC1313 family of dual-output regulators designed for high efficiency and low noise. The ZS0EUN variant specifically denotes a fixed 1.5 V LDO output combined with an adjustable or fixed buck output. It shares common architectural features with other variants in the series, differing primarily in output voltage settings and packaging.

Replacement Considerations

Direct substitutes include other TC1313 variants such as TC1313-UD3EUN or TC1313-TA3EUN, provided the output voltage requirements match. Verify pin compatibility and thermal characteristics before swapping. Alternative families may require circuit redesign due to differences in control architecture.