TC1303A-PP3EUNTR

Overview

The TC1303A-PP3EUNTR is a dual-output power management IC from Microchip Technology, integrating a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) linear regulator. It operates within an input voltage range of 2.7 V to 5.5 V. The device features a fixed 1.8 V output for both channels. Total quiescent current is typically 65 µA. The LDO exhibits dropout voltages of 205 mV and 280 mV under specific load conditions. It includes a Power-Good output with a 300 ms delay and independent shutdown controls. The component is housed in a 10-pin MSOP package and supports operation temperatures from -40°C to +85°C.

Feature Summary

• Integrates a 500 mA synchronous buck converter and a 300 mA LDO on a single chip
• Features automatic transition between PWM and PFM modes for optimized efficiency
• Includes a Power-Good signal with a 300 ms delay for system monitoring
• Provides independent shutdown control for each output channel

Applications

• Portable consumer electronics requiring multiple voltage rails
• Battery-powered devices needing efficient power conversion
• Embedded systems utilizing USB or single-cell battery inputs
• Handheld instruments with strict space constraints

Procurement Notes

Verify the exact suffix PP3EUNTR against the official Microchip datasheet to confirm the fixed 1.8 V output configuration and MSOP-10 packaging. Ensure compatibility with your board's thermal requirements and input voltage specifications. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement orders.

Selection Notes

Select this component when a compact solution is required for generating two stable voltage rails from a single input source. It is suitable for applications where low quiescent current and high efficiency are critical. Consider the fixed 1.8 V outputs; if adjustable voltages are needed, alternative suffixes within the TC1303A family should be evaluated.

Part Context

This part belongs to the TC1303 series of dual-output regulators designed by Microchip Technology. The series combines switching and linear regulation technologies to address diverse power needs in portable electronics. The TC1303A variant specifically denotes the A-grade temperature and performance characteristics within this product line.

Replacement Considerations

Consult the Microchip TC1303A datasheet for direct pin-compatible alternatives with different output voltages or packages. Verify that any substitute maintains the 500 mA buck and 300 mA LDO current capabilities.