TC1313-ZP0EUNTR

Overview

The TC1313-ZP0EUNTR is a dual-output power management IC from Microchip Technology, featuring 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, with a nominal rating of 3.6 V. The device utilizes current-mode control and pulse width modulation, supporting a maximum switching frequency of 2400 kHz. It is housed in a 10-pin MSOP package and offers adjustable output voltages for the buck converter ranging from 0.8 V to 4.5 V.

Feature Summary

• Integrates a 500 mA synchronous buck regulator and a 300 mA LDO in a single compact package
• Provides independent shutdown control for both the buck and LDO outputs
• Features automatic transition between PWM and PFM modes for optimized efficiency across load conditions
• Includes internal compensation for both outputs to simplify external component requirements

Applications

• Portable battery-powered consumer electronics requiring multiple voltage rails
• Embedded systems needing efficient step-down conversion alongside stable analog supply
• IoT devices utilizing low quiescent current for extended battery life
• Mobile communication modules requiring low noise power delivery

Procurement Notes

Verify the specific suffix 'ZP0' confirms the fixed 1.8 V LDO output configuration as distinct from other TC1313 variants. Ensure the ordering part number matches the required tape-and-reel packaging format. Confirm RoHS compliance status and lead times directly with authorized Microchip distributors or the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a combined high-current buck and precision LDO solution is required in a small footprint. The TC1313-ZP0EUNTR is suitable for designs needing a fixed 1.8 V rail for the LDO section while allowing flexible adjustment of the main buck output. Consider the 57 µA typical quiescent current for applications prioritizing standby power consumption.

Part Context

This part belongs to the TC1313 family of dual-output regulators designed by Microchip Technology. The series combines a synchronous buck converter with an LDO to provide efficient power conversion and clean regulation for sensitive loads. Variants within the family differ primarily in the fixed output voltage of the LDO section and the packaging type, such as MSOP-10 or DFN-10.

Replacement Considerations

Direct substitutes include other TC1313 variants with different LDO fixed voltages, such as TC1313-ML1EUNTR (2.2 V LDO), TC1313-RF0EUNTR (2.8 V LDO), or TC1313-UA3EUNTR (3.3 V LDO). Verify that the specific LDO output voltage requirement matches the replacement part's fixed setting.