TPS7A0533PDBZT

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

The TPS7A0533PDBZT is a low-dropout regulator from the TPS7A05 family, housed in a 3-pin SOT-23 (DBZ) package. It delivers up to 200 mA output current with an input voltage range of 1.4 V to 5.5 V. The device provides a fixed 3.3 V output with typical accuracy of 1% and maximum 3%. Key electrical parameters include ultralow quiescent current of 1 µA typical, dropout voltage of 222 mV max at 200 mA, and shutdown current of 300 nA max. It operates within a junction temperature range of –40°C to +125°C.

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

• Ultralow quiescent current consumption for extended battery life
• Excellent transient response under varying load conditions
• Active output discharge circuit for rapid power-down
• Foldback current limit protection against short circuits

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

• Wearable electronics
• Always-on power supplies
• Portable and battery-powered equipment
• Wireless handsets and smart phones

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

Verify the specific ordering suffix matches the required package type and output voltage configuration. Confirm that the DBZ package designation corresponds to the 3-pin SOT-23 variant as specified in the datasheet. Ensure compatibility with the intended operating temperature range and capacitor requirements for stability before finalizing procurement orders.

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

Select this component when ultra-small footprint and minimal ground current are critical constraints. The fixed 3.3 V output eliminates external resistor networks, simplifying design. Consider the active pulldown feature if fast discharge upon disablement is required. Verify that the input voltage remains within the 1.4 V to 5.5 V range for optimal regulation performance.

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

This part belongs to the TPS7A05 series of ultralow IQ LDOs designed for space-constrained portable applications. The TPS7A0533PDBZT specifically denotes the 3.3 V fixed output version in the 3-pin SOT-23 package. It shares core architecture with other variants in the family, differing primarily in output voltage and physical package dimensions.

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

Direct substitutes within the same family include TPS7A05xxDBZT variants with different fixed output voltages. Cross-family replacements require matching output current, input voltage range, and package outline. Verify thermal resistance and pinout compatibility before substituting with other manufacturers' LDOs.