ET5H133Y

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

The ET5H133Y is a positive fixed linear voltage regulator (LDO) manufactured by ETEK Microelectronics. It provides a fixed output voltage of 3.3V with a maximum output current of 150mA. The device is housed in a compact 4-DFN (1x1mm) package, suitable for space-constrained portable applications. It features high input voltage capability and includes protection mechanisms such as over-current limiting and thermal shutdown to ensure reliable operation under varying load conditions.

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

• Fixed 3.3V output voltage with 150mA current capacity
• Compact 4-DFN (1x1mm) surface-mount package
• Integrated over-current and thermal shutdown protection

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

• Portable battery-powered electronic devices
• Mobile communication equipment
• Embedded systems requiring stable 3.3V logic supply

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

Verify the specific suffix 'Y' corresponds to the 4-DFN (1x1mm) package configuration. Confirm the fixed 3.3V output rating matches system requirements. Ensure compatibility with operating temperature ranges specified in the official datasheet. Cross-reference manufacturer part numbers to avoid confusion with similar series variants.

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

Select this component when a fixed 3.3V rail is required with moderate current demands up to 150mA. The small footprint makes it ideal for dense PCB layouts. Consider input voltage headroom relative to the dropout voltage characteristics. Evaluate thermal performance based on expected power dissipation in the target application environment.

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

ET5H133Y belongs to ETEK's line of low-dropout regulators designed for analog and digital power management. It complements other LDOs and switching regulators in the portfolio, targeting consumer electronics and industrial control sectors where size and efficiency are critical design constraints.

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

Check for direct pin-compatible alternatives from ETEK or other manufacturers offering identical 3.3V/150mA specifications in 4-DFN packages. Verify electrical parameter equivalence before substitution.