TC1303C-VP0EUN

Overview

The TC1303C-VP0EUN 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. The device features a Power-Good (PG) monitor output with a 300 ms delay. Total quiescent current is typically 65 µA. The buck converter supports adjustable outputs from 0.8 V to 4.5 V or standard fixed voltages including 1.8 V, 2.5 V, and 3.3 V. It utilizes a 2.0 MHz fixed-frequency PWM control mode under heavy loads and transitions automatically to PFM mode for efficiency at light loads.

Feature Summary

• Integrates a 500 mA synchronous buck regulator and a 300 mA LDO regulator in a single package
• Includes a Power-Good output signal with a 300 ms delay for system supervision
• Features automatic transition between Pulse Width Modulation (PWM) and Pulse Frequency Modulation (PFM) modes
• Provides independent shutdown control for both the buck and LDO outputs

Applications

• Cellular phones and mobile communication devices
• Portable computers and laptops
• USB-powered peripheral devices
• Handheld instruments and portable test equipment

Procurement Notes

Verify the specific suffix 'VP0' against the official Microchip datasheet DS51617A to confirm the exact fixed output voltage configuration. Ensure the MSOP-10 package variant matches the design requirements. Confirm RoHS compliance status and lead-free specifications prior to ordering. Cross-reference the part number with authorized distributors to ensure authenticity and traceability.

Selection Notes

Select this component when a compact dual-rail solution is required for battery-operated systems. It is suitable for applications needing simultaneous high-current switching regulation and low-noise linear regulation. Consider the internal compensation which reduces external component count. Evaluate the thermal performance in the MSOP-10 package relative to the expected load conditions.

Part Context

This part belongs to the TC1303 family, which includes variants like TC1303A, B, and C. These regulators are designed for space-constrained portable electronics. The TC1303C specifically denotes the version with defined electrical characteristics and output options. The family emphasizes high integration and low power consumption for modern mobile applications.

Replacement Considerations

Check for other TC1303C variants with different output voltage suffixes if the VP0 configuration does not match the target voltage. Verify pin-to-pin compatibility with alternative dual-regulator ICs from other manufacturers if supply constraints exist.