TC1313-1P0EUNTR

Overview

The TC1313-1P0EUNTR 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 utilizes current-mode control with pulse width modulation for the buck converter, which supports a fixed switching frequency of 2.0 MHz under heavy loads. The LDO provides a fixed output voltage of 1.8 V. Total quiescent current is typically 57 µA. Both outputs are internally compensated and feature independent shutdown capabilities.

Feature Summary

• Dual-output architecture combining a high-efficiency synchronous buck converter with a low-noise LDO in a single package
• Automatic transition between PWM and PFM modes to optimize efficiency across varying load conditions
• Independent shutdown controls allow separate management of the buck and LDO outputs to reduce system power consumption
• Internally compensated designs simplify external component selection and ensure stable operation

Applications

• Portable consumer electronics requiring efficient multi-rail power distribution
• Battery-powered devices needing extended runtime through optimized quiescent current management
• Embedded systems utilizing microcontrollers that require both switching and linear regulation stages

Procurement Notes

Verify the specific suffix code against official Microchip documentation to confirm the exact output voltage configuration and package variant. Ensure compatibility with RoHS standards and lead-free requirements as specified in the datasheet. Confirm moisture sensitivity level handling procedures during assembly to prevent package damage.

Selection Notes

Select this component when a compact solution is required for generating two distinct voltage rails from a single input source. The integrated nature reduces board space compared to discrete solutions. Consider the thermal performance in the MSOP-10 package relative to the expected load currents and ambient operating temperatures.

Part Context

This part belongs to the TC1313 family of dual-output regulators designed for space-constrained applications. It integrates power switches and control logic to minimize external component count. The family offers various fixed output combinations and adjustable options to suit different system voltage requirements.

Replacement Considerations

Check for pin-compatible alternatives within the same product family that offer different fixed output voltages or packaging options. Verify that any substitute maintains the same electrical characteristics and thermal performance.