KTB8371CEIB-5C-TR

Voltage Regulators - DC DC Switching Regulators Overview

The KTB8371CEIB-5C-TR is a precision adaptive-on-time (AOT) buck switching regulator manufactured by Kinetic Technologies. It operates with an input voltage range of 2.7 V to 5.5 V and provides a fixed output voltage of 0.9 V. The device delivers up to 3 A of output current with ±1% accuracy at +25°C. It features a 2.4 MHz switching frequency with auto-skip mode for light loads, achieving peak efficiency of 89%. The controller includes dynamic voltage scaling (DVS), soft-start, and comprehensive protection mechanisms such as over-current, short-circuit, and thermal shutdown. It is housed in a 15-bump Pb-free WLCSP package measuring 1.340 x 2.045 mm.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Precision adaptive-on-time control architecture for fast transient response
• I2C programmable interface with DVS capability
• Compact solution size optimized for mobile applications
• Integrated protection against over-current, short-circuit, and thermal events

Voltage Regulators - DC DC Switching Regulators Applications

• CPU/GPU core power supplies
• DSP and baseband power delivery
• DDR memory power rails
• VIO and sensor/analog power circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix 'CEIB-5C-TR' against official Kinetic Technologies documentation to confirm the fixed 0.9 V output voltage and specific packaging configuration. Ensure compatibility with existing I2C addressing and ensure the operating temperature range meets system requirements. Cross-reference pinout details with the official datasheet to prevent integration errors during PCB layout.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 0.9 V output is required from a 2.7 V to 5.5 V input source. It is suitable for space-constrained designs due to its tiny external component count. Consider the 2.4 MHz frequency for smaller inductor sizes. Verify that the load profile benefits from the auto-skip mode for improved light-load efficiency.

Voltage Regulators - DC DC Switching Regulators Part Context

The KTB8371 series belongs to Kinetic Technologies' line of low-voltage, high-current buck regulators designed for portable electronics. These devices utilize adaptive-on-time control to balance efficiency and transient performance. The KTB8371 variant specifically offers a fixed output, simplifying design implementation compared to programmable versions while maintaining high accuracy and compact footprint.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for pin-compatible alternatives within the Kinetic portfolio or industry-standard equivalents like the FAN53526 family if software reconfiguration is not feasible. Ensure replacement parts support the same 3 A current rating and 2.4 MHz switching frequency to maintain thermal and performance specifications.