XC9288B1KDER-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9288B1KDER-G is a HiSAT-COT synchronous buck converter from Torex Semiconductor. It operates with an input voltage range of 2.5 V to 5.5 V and provides a fixed output voltage of 1.75 V at up to 1.5 A. The device features a switching frequency of 3 MHz and ultra-low quiescent current of 15 uA. It supports PWM/PFM auto control and includes a shutdown function. Operating temperatures range from -40°C to +105°C, housed in a USP-C-EP-6 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• HiSAT-COT topology ensures stable operation without requiring minimum load conditions.
• Auto-switching between PWM and PFM modes optimizes efficiency across varying load currents.
• Integrated shutdown pin allows for effective power management and system sleep modes.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient step-down conversion
• Battery-powered systems with strict low-power standby requirements
• Embedded circuits needing stable 1.75V supply rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix KDER against official Torex documentation to confirm package type and tape/reel specifications. Ensure compatibility with USP-C-EP-6 footprint during PCB layout. Cross-reference thermal performance data for your specific ambient conditions. Confirm RoHS compliance status through the manufacturer's latest certification documents before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.75V output is required within a 5.5V input limit. The 3MHz frequency allows for smaller external inductors compared to lower-frequency alternatives. Consider the 1.5A current rating against peak load demands. The HiSAT-COT feature simplifies design by removing stability constraints associated with traditional COT converters under light loads.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9288 series of HiSAT-COT synchronous buck converters. It shares architectural similarities with other XC9288 variants but differs in output voltage and switching frequency settings defined by internal resistors or pins. The series targets high-efficiency applications in compact form factors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include XC9288B1KCER-G (1.2MHz) and XC9288B1HDER-G (1.65V output). Verify pinout compatibility and thermal characteristics when swapping between these variants. Ensure the alternative meets the specific 1.75V output requirement if not using the B1K variant.