HT7350-A

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

The HT7350-A is a positive voltage regulator from the UMW HT73XX-A series, utilizing CMOS technology for low dropout and high precision. It delivers a nominal 5.0V output with ±3% tolerance. The device supports a maximum input voltage of 12V and handles up to 250mA output current. Quiescent current is typically 3µA. Key electrical characteristics include a drop voltage of 60mV at 40mA load and a line regulation of 0.3%/V.

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

• Built-in low on-state resistance transistor enables low voltage difference operation.
• High input withstand voltage capacity ensures stable output under high voltage conditions.
• Ultra-low power consumption current design suitable for battery-powered applications.
• Low output voltage temperature drift provides stability across operating temperatures.

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

• Stabilized power supply for communication equipment
• Regulated power supply for mobile phones
• Stabilized power supply for portable medical instruments

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

Verify the specific package variant (TO-92, SOT89-3, or SOT23-3) required for your PCB layout, as the datasheet lists multiple options for the HT73XX-A series. Confirm that the input voltage does not exceed the 12V maximum rating during operation. Ensure thermal management meets the 400mW power dissipation limit within the -25°C to 70°C working temperature range.

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

Select this component when a fixed 5.0V output is needed with minimal quiescent current draw. It is appropriate for circuits requiring high input voltage tolerance up to 12V. Consider the available packages (TO-92, SOT89-3, SOT23-3) based on space constraints. Verify that the load current remains within the 250mA limit and that the input voltage stays above the minimum required for regulation.

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

The HT7350-A belongs to the HT73XX-A series of LDO linear regulators manufactured by UMT Semiconductor. This series is designed for applications requiring high precision and low power consumption. The family includes various output voltages ranging from 1.8V to 3.6V, with the HT7350-A specifically providing a 5.0V output level.

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

Other parts in the HT73XX-A series share similar features but offer different output voltages. Direct substitutes must match the 5.0V output requirement. Verify pinout compatibility if replacing with devices from other manufacturers, as pin definitions may vary between TO-92, SOT89-3, and SOT23-3 packages.

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

What is the maximum output current for the HT7350-A?

The maximum output current is 250mA when the input voltage is 6V and the output voltage is at least 4.5V.

What is the typical quiescent current of the HT7350-A?

The typical quiescent current is 3µA under no-load conditions with an input voltage of 6V.

What is the drop voltage of the HT7350-A at 40mA load?

The drop voltage is typically 60mV when the output current is 40mA.