XC9289A1DD1R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9289A1DD1R-G is a synchronous buck converter from the Torex Semiconductor HiSAT-COT series. It operates with an input voltage range of 2.5 V to 5.5 V and provides a fixed output voltage of 1.35 V at up to 1.5 A output current. The device features a switching frequency of 3 MHz and a typical quiescent current of 15 uA. It is housed in an LGA-8B01-8 package and supports operation temperatures from -40°C to +105°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates HiSAT-COT control architecture for stable operation without external compensation components
• Provides high-efficiency power conversion through integrated synchronous rectification
• Supports wide input voltage ranges suitable for single-cell lithium battery applications

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient step-down regulation
• Battery-powered consumer electronics systems
• Embedded power management circuits in compact mobile hardware

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix '1DD1' confirms the 1.35 V fixed output setting, as this variant differs from other XC9289 models with different voltage codes. Confirm RoHS compliance status and ensure the LGA-8B01-8 footprint matches your PCB design requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.35 V output is required within the 2.5 V to 5.5 V input range. The 3 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the load current does not exceed the 1.5 A limit and that thermal dissipation capabilities of the LGA package are sufficient for the application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9289 family of HiSAT-COT synchronous buck converters. These devices are designed for portable equipment, offering high efficiency and small solution size. The XC9289A1DD1R-G specifically denotes the version with a fixed 1.35 V output, distinguishing it from adjustable or other fixed voltage variants in the same series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other XC9289A variants with compatible packages and electrical characteristics, such as XC9289A18C1R-G or XC9289A11C1R-G, provided the fixed output voltage difference is acceptable for the circuit design.