HT7133S

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

The HT7133S is a positive fixed-output linear regulator from the 71xx series, manufactured by UMW using CMOS technology. It provides a fixed output voltage of 3.3V with a maximum output current capability of 100mA. The device supports a high input voltage up to 30V and features low quiescent current consumption of 3µA. It includes short-circuit protection and operates within a temperature range of -20°C to 70°C. The component is housed in a SOT-23 package.

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

• CMOS-based construction ensures low power consumption and minimal voltage drop
• High input voltage tolerance allows operation with supply voltages up to 30V
• Integrated short-circuit protection safeguards against load faults

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

• Battery-powered equipment requiring efficient voltage regulation
• Communication equipment power supplies
• Audio/Video equipment circuitry

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

Verify the specific manufacturer designation as UMW when sourcing this component, as similar part numbers may exist under other brands like Holtek. Confirm the package type is SOT-23 and the output voltage is strictly 3.3V. Ensure the operating temperature range meets the application requirements of -20°C to 70°C. Check for RoHS compliance status if environmental regulations apply to the final product assembly.

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

Select this regulator for applications requiring a stable 3.3V rail from higher input voltages up to 30V. The low quiescent current makes it suitable for battery-operated devices where standby power loss is critical. The 100mA output current is sufficient for moderate load requirements. Consider the SOT-23 package size for space-constrained PCB layouts.

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

This component belongs to the 71xx series of low-power high-voltage regulators. The series utilizes CMOS technology to achieve low dropout characteristics and high input voltage tolerance. These regulators are designed primarily as fixed voltage sources but can be adapted for variable outputs with external components.

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

The HT7133-1 is a related variant within the same series family. Verify compatibility regarding package pinout and exact electrical specifications before substitution.