XC9142D55D0R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9142D55D0R-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor. It integrates a high-side N-channel MOSFET and features an internal oscillator operating at a fixed frequency of 1.2 MHz. The device regulates output voltage to 5.5V with a typical accuracy of ±1%. It supports input voltages from 2.7V to 6V and delivers a maximum output current of 1A. Key electrical characteristics include a low quiescent current of 35µA in operation and 0.8µA in standby mode. The converter utilizes a PFM/PWM hybrid control scheme for enhanced efficiency across varying load conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side N-channel MOSFET for compact solution design
• Employs PFM/PWM hybrid control to optimize efficiency under light and heavy loads
• Features built-in protection mechanisms including overcurrent, thermal shutdown, and undervoltage lockout

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring efficient power management
• Handheld instruments and medical equipment
• Consumer electronics utilizing single-cell lithium-ion batteries

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'D0R' confirms the tape and reel packaging format and the exact output voltage setting. Ensure compatibility with the required input voltage range and load current specifications for your application. Cross-reference the manufacturing date code and authenticity through authorized distributors to prevent counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5.5V output is required from a single-cell lithium-ion battery source. Consider the 1.2MHz switching frequency for smaller passive component sizes compared to lower-frequency alternatives. Evaluate the thermal performance requirements given the integrated MOSFET design and expected ambient operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9142 series of synchronous buck converters designed for low-power applications. The series is characterized by high efficiency and small external component counts. The D0R suffix typically indicates specific packaging and marking configurations within the product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements may include other Torex XC9142 variants with different output voltages or package types. Verify pin compatibility and electrical parameters before substituting with competitors' parts such as those from Microchip or Texas Instruments.