ET5H250B

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

The ET5H250B is a high-input voltage, low-dropout linear regulator (LDO) from ETEK Microelectronics. It provides a fixed positive output with a maximum load current of 300mA. The device features ultra-low quiescent current to extend battery life in portable applications. It includes built-in protection mechanisms such as over-current protection and thermal shutdown. The component is designed for stable operation with ceramic capacitors and offers high power supply rejection ratio performance.

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

• High input voltage capability suitable for diverse power sources
• Ultra-low quiescent current consumption for energy efficiency
• Integrated over-current and thermal shutdown protection
• Stable operation with small ceramic output capacitors

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

• Portable battery-powered equipment
• Wireless communication devices
• Cameras and image sensors
• Mobile handheld devices

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

Verify the specific output voltage variant required, as the series supports fixed outputs. Confirm package availability, typically SOT-89-3 or similar small outlines. Ensure compatibility with system ground references and input voltage ranges before integration. Check RoHS compliance status if environmental regulations apply to the final assembly.

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

Select this LDO when high input voltage tolerance and low static current are critical. Compare dropout voltage requirements against the minimum input-output differential expected in operation. Consider thermal dissipation capabilities based on the load current and ambient temperature. Verify that the fixed output voltage matches the target circuit rail without need for external adjustment resistors.

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

ETEK Microelectronics specializes in high-performance analog integrated circuits. The ET5H250B belongs to a family of low-dropout regulators designed for mobile and portable electronics. These components address the need for efficient power management in space-constrained and battery-operated devices.

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

Direct substitutes may include other 300mA LDOs with similar high-input voltage specifications. Verify pinout compatibility for SOT-89-3 packages to ensure drop-in replacement feasibility. Cross-reference thermal resistance values and protection feature sets to maintain system reliability.