TC1303C-VP0EMF

Overview

The TC1303C-VP0EMF is a dual-output power management integrated circuit manufactured by Microchip Technology. It integrates a 500 mA synchronous buck regulator and a 300 mA low-dropout linear regulator (LDO) within a single package. The device operates with an input voltage range of 2.7 V to 5.5 V and features a typical total quiescent current of 65 µA. The synchronous buck converter supports a fixed switching frequency of 2.0 MHz, offering over 90% typical efficiency and automatic transition from PWM to PFM mode for improved light-load performance. The LDO output provides independent shutdown capability. Both regulators are internally compensated, and the device includes a power-good output signal with a 300 ms delay. It is housed in a 10-pin MSOP package.

Feature Summary

• Integrates a 500 mA synchronous buck regulator and a 300 mA LDO in a single compact package
• Features automatic transition between PWM and PFM modes to optimize efficiency across load conditions
• Provides independent shutdown control for both the buck and LDO outputs
• Includes a power-good status output with a defined 300 ms delay for system monitoring

Applications

• Portable battery-powered electronic devices requiring efficient dual-rail power supply
• Embedded systems utilizing microcontrollers or application processors with distinct core and I/O voltage requirements
• Industrial control modules operating within standard wide-input voltage ranges
• Communication equipment needing low-noise power delivery for sensitive analog sections

Procurement Notes

Verify the specific suffix 'VP0' against the official Microchip datasheet to confirm the exact output voltage configuration and pinout compatibility. Ensure that the MSOP-10 package dimensions match the target PCB footprint. Confirm RoHS compliance status and check for any recent product change notifications regarding manufacturing site updates before finalizing procurement orders.

Selection Notes

Select this component when a design requires two regulated outputs from a single source to minimize board space. The choice is appropriate for applications demanding high efficiency at heavy loads via the synchronous buck, combined with low noise regulation from the LDO. Consider the internal compensation which reduces external component count, but verify thermal dissipation capabilities within the MSOP package for the expected load currents.

Part Context

This part belongs to the TC1303 family, which combines switching and linear regulation technologies. The 'C' designation typically indicates specific output voltage configurations or revisions within the series. It serves as a solution for designers seeking to reduce component count and improve power density compared to using discrete regulators. The family emphasizes ease of use through internal compensation and flexible output options.

Replacement Considerations

Direct replacement options include other variants within the TC1303 series such as TC1303B or TC1304, provided the output voltage and package type are compatible. Verify that substitute parts maintain the same 2.0 MHz switching frequency and current ratings. Cross-reference the specific suffix codes to ensure identical electrical characteristics and pin assignments.