KF25BDT-TR

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The KF25BDT-TR is a fixed-output low-dropout linear regulator manufactured by STMicroelectronics, providing a stable 2.5 V output with a maximum load current of 500 mA. It features ±2% accuracy at 25 °C and operates within an input voltage range up to 20 V. The device exhibits a line regulation of 12 mV and load regulation of 50 mV. Designed for surface-mount installation in DPAK packages, it supports a wide operating temperature range from -40 °C to +125 °C. Quiescent current is specified at 0.5 mA, ensuring efficient performance in power-sensitive applications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Logic-controlled electronic shutdown function compatible with TTL levels
• Internal protection against excessive current and thermal overload
• Requires minimal external capacitance for circuit stability

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable systems requiring low quiescent current
• Low-noise power supply stages for sensitive analog circuits
• Industrial equipment utilizing local voltage regulation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the complete part number including suffixes to ensure correct package type and tape-and-reel configuration. Confirm that the supplier provides official datasheets matching the specific revision. Check component markings on the physical device against the manufacturer's specifications to prevent counterfeit parts. Ensure storage conditions comply with moisture sensitivity levels if applicable.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a precise 2.5 V rail is required with moderate current demands. The DPAK package offers a balance between thermal dissipation and board space efficiency. Consider the logic shutdown feature if system-wide power management is necessary. Verify that the input voltage remains within the 20 V limit under all transient conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This regulator belongs to the KF series of very low drop voltage regulators. The series includes variants with different fixed output voltages such as 3.3 V, 5 V, and 8 V. All members share common features like low dropout characteristics and internal protection mechanisms, designed primarily for battery-operated and low-power applications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Other KF series devices (e.g., KF33BDT-TR, KF5BDT-TR) offer similar functionality with different fixed output voltages. Cross-reference pinouts and thermal characteristics before substitution. Ensure any alternative maintains the same shutdown logic compatibility and package dimensions.