XC9801B543KR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9801B543KR-G is a regulated voltage step-up charge pump IC manufactured by Torex Semiconductor. It operates with an input voltage range of 1.8 V to 5.5 V and provides a fixed output voltage of 5.4 V. The device delivers an output current of 80 mA with a switching frequency of 300 kHz. It features a low static current of 80 uA and operates within a temperature range of -40°C to +85°C. The component is housed in an MSOP-8 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated boost topology for efficient voltage step-up conversion
• Fixed regulated output voltage capability
• Low quiescent current consumption for battery efficiency
• Compact surface-mount packaging design

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring voltage boosting
• Battery-powered systems with single-cell inputs
• Embedded power management circuits
• Consumer electronics with limited space constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix KR-G against official Torex documentation to confirm the MSOP-8 package type and tape-and-reel configuration. Ensure compatibility with standard SMD/SMT assembly processes. Cross-reference the part number with authorized distributors to validate authenticity and current production status before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5.4 V output is required from a 1.8 V to 5.5 V input source. Consider the 80 mA output current limit and 300 kHz switching frequency for filter component selection. Evaluate the MSOP-8 package size against board space requirements and thermal dissipation needs for the target application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9801 series of regulated step-up charge pumps from Torex Semiconductor. The series offers various fixed output voltages, differentiated by model suffixes. The XC9801B543KR-G specifically targets applications needing a stable 5.4 V rail with minimal external components, fitting into the broader PMIC category for portable power management.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official Torex documentation for direct substitutes. Similar parts in the XC9801 family include XC9801B503KR-G (5.0 V output) and XC9801B523DR-G (5.2 V output), though output voltage differences require circuit verification.