TC1313-1H0EMF

Overview

The TC1313-1H0EMF is a dual-output power management IC from Microchip Technology, featuring 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 device provides fixed output voltages of 1.375 V for the LDO and 2.6 V for the buck converter. Total quiescent current is typically 57 µA. It utilizes pulse width modulation with automatic transition to pulse frequency modulation. The component is housed in a 10-pin DFN package measuring 3 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
• Features independent shutdown controls for both the buck and LDO outputs to optimize system power management
• Includes automatic transition between PWM and PFM modes to maintain high efficiency across varying load conditions
• Provides internal compensation for both outputs, simplifying external component requirements

Applications

• Portable consumer electronics requiring efficient multi-rail power distribution
• Battery-powered devices needing extended runtime through low quiescent current operation
• Embedded systems utilizing single-cell lithium-ion or lithium-polymer battery sources
• IoT modules and wireless communication devices with strict space constraints

Procurement Notes

Verify that the specific suffix '1H0' corresponds to the required 1.375 V LDO and 2.6 V Buck output configuration before procurement. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure ESD handling protocols are followed during storage and assembly due to the sensitive nature of the CMOS control circuitry.

Selection Notes

Select this part when a fixed 1.375 V rail is needed alongside a 2.6 V rail from a single 2.7 V to 5.5 V input source. Consider the 57 µA typical quiescent current for applications prioritizing standby power savings. Evaluate the 3x3 mm DFN footprint against available PCB real estate. Verify thermal performance requirements under maximum load conditions given the synchronous buck topology.

Part Context

This component belongs to the TC1313 family of dual-output regulators designed for space-constrained portable applications. It combines switching and linear regulation technologies to provide flexible power solutions. The series offers various fixed and adjustable output combinations, allowing designers to tailor voltage rails without using multiple discrete components.

Replacement Considerations

Direct substitutes include other TC1313 variants with different output voltage suffixes if the voltage levels do not match the design requirements. Cross-reference with similar dual-output PMICs from other manufacturers only if pin compatibility and electrical specifications align perfectly.