TC1313-ZS0EMF

Overview

The TC1313-ZS0EMF is a dual-output power management IC from Microchip Technology, combining a synchronous buck regulator and a low-dropout (LDO) linear regulator in a DFN-10 package. The adjustable buck output supports voltages from 800 mV to 4.5 V with a maximum current of 500 mA, while the fixed LDO provides a stable 1.5 V output at up to 300 mA. Operating within an input voltage range of 2.7 V to 5.5 V, the device features a typical quiescent current of 57 µA. It operates reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 500 mA synchronous buck converter and a 300 mA LDO for efficient dual-rail power generation
• Features independent shutdown controls for both the buck and LDO outputs to optimize system power consumption
• Includes automatic transition between PWM and PFM modes to maintain high efficiency under varying load conditions

Applications

• Portable battery-powered electronic devices requiring multiple voltage rails
• Embedded systems utilizing single-cell lithium-ion or lithium-polymer batteries
• Industrial control modules needing compact power management solutions
• Consumer electronics with space-constrained printed circuit board layouts

Procurement Notes

Verify that the specific suffix ZS0 corresponds to the required 1.5 V fixed LDO output configuration. Confirm the DFN-10 package dimensions match the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final application. Cross-reference the manufacturer part number with official datasheets to validate component authenticity and specifications before integration.

Selection Notes

Select this component when a single-chip solution is needed to generate both an adjustable higher-current rail and a fixed lower-current rail. It is suitable for designs prioritizing board space reduction and simplified bill of materials. Consider the internal compensation which reduces external component count compared to non-compensated alternatives. Evaluate the total quiescent current impact on standby power budgets relative to other available regulators.

Part Context

This device belongs to the TC1313 family of dual-output regulators designed for portable applications. The series offers various fixed and adjustable output combinations to suit different system architectures. All variants share the same core architecture, including the 2.0 MHz switching frequency and internal compensation, differing primarily in the specific output voltage configurations provided by the LDO section.

Replacement Considerations

Direct substitutes include other TC1313 variants such as TC1313-RE0EMF or TC1313-OQ0EMF, provided the specific LDO output voltage matches the design requirements. Verify pin compatibility and thermal performance when swapping between different output configurations within the same family.