TC1313-ZD0EMF

Overview

The TC1313-ZD0EMF is a dual-output power management IC from Microchip Technology, integrating 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 nominal rating of 3.6 V. The device features a fixed switching frequency of 2.0 MHz for the buck converter and delivers a fixed LDO output voltage of 2.9 V. Total quiescent current is typically 57 µA. It utilizes current-mode control with pulse width modulation and automatic PWM-to-PFM transition. The component is housed in a 10-pin DFN package measuring 3 mm x 3 mm with a height of 0.90 mm.

Feature Summary

• Integrates a 500 mA synchronous buck regulator and a 300 mA LDO in a single compact package
• Provides independent shutdown control for both the buck and LDO outputs
• Features automatic transition between PWM and PFM modes for optimized efficiency across load conditions
• Includes internal compensation for both outputs to simplify external component requirements

Applications

• Portable consumer electronics requiring multiple voltage rails
• Battery-powered devices needing efficient power conversion
• Embedded systems utilizing microprocessors or memory components
• IoT modules with strict size and power constraints

Procurement Notes

Verify the specific suffix code against official Microchip documentation to confirm the exact LDO output voltage, as variants differ by suffix. Ensure compatibility with RoHS and lead-free compliance standards required for your assembly process. Confirm the DFN-10 package dimensions match your PCB footprint design. Check for any obsolescence notices or lifecycle status updates directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a system requires two distinct regulated voltages from a single source without occupying excessive board space. It is suitable for applications where input voltage varies between 2.7 V and 5.5 V. Consider the fixed 2.9 V LDO output if it matches your secondary rail requirement; otherwise, choose a variant with the appropriate suffix. Evaluate the total quiescent current impact on battery life if the device remains active during standby periods.

Part Context

This part belongs to the TC1313 family of dual-output regulators designed for space-constrained portable applications. The family shares common architecture but varies in LDO output voltage settings defined by alphanumeric suffixes. These devices are categorized under PMICs and are manufactured by Microchip Technology using standard CMOS processes compatible with modern surface-mount assembly techniques.

Replacement Considerations

Consult Microchip's official substitution guide for verified alternatives. Other TC1313 variants with different suffix codes may serve as functional replacements if their LDO output voltages align with system requirements. Cross-referencing pinouts and electrical characteristics with equivalent products from other manufacturers requires careful validation of thermal and electrical limits.