XC9288B09CPR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9288B09CPR-G is a synchronous buck converter from the HiSAT-COT series by Torex Semiconductor. It operates with an input voltage range of 2.5 V to 5.5 V and provides a fixed output voltage of 0.9 V at up to 1.5 A. The device features a switching frequency of 1.2 MHz and a typical quiescent current of 15 uA. It utilizes PWM/PFM auto control for efficiency optimization. The component is housed in an SOT-89-5 package and supports operation between -40°C and +105°C, including a shutdown function.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• HiSAT-COT topology enables stable operation with small external components
• Auto-switching between PWM and PFM modes optimizes efficiency across load ranges
• Integrated synchronous rectification reduces power loss
• Shutdown pin allows for low-power standby states

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient step-down conversion
• Battery-powered systems needing extended runtime
• Embedded circuits with strict space constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific output voltage designation within the part number against official datasheets before procurement. Confirm RoHS compliance status and packaging options such as cut tape or reel availability through authorized distributors. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed low-voltage output near 0.9 V is required from a single-cell lithium battery or similar 2.5V-5.5V source. Consider the 1.5 A current limit and 1.2 MHz frequency for balancing component size and efficiency. Verify that the SOT-89-5 package fits the PCB layout constraints and thermal requirements of the design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9288 family of HiSAT-COT synchronous buck converters. The 'B' suffix typically denotes specific internal characteristics or revisions within the series. These regulators are designed for high efficiency and compact footprint in portable electronics, offering a balance of performance and simplicity in power management solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for other XC9288 variants with different fixed output voltages if the 0.9 V specification does not match the load requirement. Ensure any substitute maintains the same SOT-89-5 package and input voltage range for direct compatibility.