HT7133-1

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

The HT7133-1 is a three-terminal low power high voltage regulator manufactured by UMW using CMOS technology. It provides a fixed output voltage of 3.3V with a maximum output current of 100mA. The device supports input voltages up to 30V and features a typical dropout voltage of 0.1V at 1mA. Quiescent current is maintained at or below 3µA, ensuring minimal power consumption. The component operates within a temperature range of -25°C to 70°C and includes short-circuit protection. It is housed in an SOT-89-3 package.

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

• CMOS technology implementation for low quiescent current and low voltage drop
• High input voltage capability up to 30V
• Integrated short-circuit protection
• Fixed 3.3V output with high precision

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

• Battery-powered equipment requiring low standby current
• Portable instruments needing stable voltage regulation
• Consumer electronics utilizing high-voltage input sources

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

Verify the manufacturer designation as UMW (United Microelectronics Corp) on the component marking. Confirm the package type is SOT-89-3 and the output voltage is fixed at 3.3V. Ensure compliance with RoHS3 standards if required by your assembly specifications. Cross-reference the part number HT7133-1 with official UMW documentation to confirm availability and exact electrical tolerances before finalizing procurement.

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

Select this component when a fixed 3.3V supply is needed from inputs up to 30V. The low quiescent current makes it suitable for battery-operated devices. Verify that the load current does not exceed 100mA. Consider the SOT-89-3 package size for PCB layout constraints. Ensure the operating temperature range meets the application requirements.

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

The HT7133-1 belongs to the 71xx series of low-dropout linear regulators produced by UMW. This series utilizes CMOS processes to achieve high efficiency and low power consumption. The specific suffix indicates a fixed 3.3V output variant. These regulators are designed for applications requiring reliable voltage stabilization with minimal external components.

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

Check datasheets for other LDOs offering 3.3V output, 100mA current, and similar input voltage ranges. Verify pin compatibility and thermal performance before substitution.