XC9801B443KR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9801B443KR-G is a step-up charge pump switching regulator manufactured by Torex Semiconductor. It operates within an input voltage range of 1.8 V to 5.5 V and provides a fixed regulated output of 4.4 V. The device supports an output current of 80 mA with a typical quiescent current of 80 uA. It utilizes a boost topology at a switching frequency of 300 kHz. The component is housed in an MSOP-8 package and functions reliably across an operating temperature range from -40 C to +85 C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a step-up charge pump topology for efficient voltage boosting
• Provides a fixed regulated output voltage without external feedback adjustment
• Designed for low power consumption with minimal quiescent current draw

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronic devices requiring voltage elevation
• Low-power sensor modules needing stable supply rails
• General purpose DC-DC conversion in compact consumer electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix KR-G against official Torex documentation to confirm the MSOP-8 package variant. Ensure compatibility with standard surface mount assembly processes. Cross-reference the part number with authorized distributors to confirm availability and authenticity. Check RoHS compliance status through the manufacturer's latest environmental reports before integration into final products.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 4.4 V output is required from a single-cell lithium battery or similar low-voltage source. The 80 mA output capability suits light loads, while the small MSOP-8 footprint aids in space-constrained designs. Consider the 300 kHz switching frequency for EMI management relative to nearby sensitive circuitry.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9801B series of charge pump regulators from Torex Semiconductor. These ICs are designed for applications where inductor-based boost converters are unsuitable due to size constraints. The series offers various fixed output voltages, with the 443 suffix indicating the 4.4 V configuration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The XC9801B503KR-G serves as a functional substitute offering a 5.0 V output instead of 4.4 V. Verify that the system can tolerate the higher voltage level. Other XC9801 variants may differ in output voltage but share similar electrical characteristics and pinouts.