LP3892ET-1.5/NOPB

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

The LP3892ET-1.5/NOPB is a positive fixed-output linear voltage regulator from the Texas Instruments LP3892 series. It provides a fixed output voltage of 1.5 V with a maximum output current of 1.5 A. The device operates within an input voltage range of 1.34 V to 5.5 V and features a typical dropout voltage of 0.5 V at full load. It includes protection features such as over-current, over-temperature, and under-voltage lockout (UVLO). The component is housed in a TO-220-5 through-hole package and supports an operating temperature range from -40°C to +125°C.

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

• Ultra-low dropout performance for high power efficiency
• Integrated thermal and current protection circuits
• Fast transient response capability

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

• Battery-powered systems requiring efficient voltage regulation
• Portable equipment with strict power consumption constraints
• Post-regulation stages in switching power supplies

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

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status according to the manufacturer's latest documentation. Confirm the TO-220-5 package variant matches the required thermal and mechanical specifications for the target PCB layout. Ensure the fixed 1.5V output aligns precisely with the load requirements, as adjustable variants exist within the same family.

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

Select this component when a fixed 1.5V output is required with up to 1.5A continuous current capability. The TO-220-5 package is suitable for applications where through-hole mounting is preferred or where higher thermal dissipation is needed compared to surface-mount options. Consider the 5.5V maximum input voltage limit when designing the upstream power stage.

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

This part belongs to the LP3892 family of ultra-low dropout linear regulators designed for fast response and high power efficiency. The ET suffix denotes the TO-220-5 through-hole package, distinguishing it from surface-mount variants like ES or EMR. The series is engineered to minimize voltage drop across the pass transistor, making it ideal for low-input-to-output differential applications.

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

Direct pin-compatible replacements within the LP3892 family include LP3892ES-1.5/NOPB (TO-263) and LP3892EMR-1.5/NOPB (SOIC), provided the package change is acceptable. Other Texas Instruments LDOs with similar 1.5A output and 1.5V fixed voltage should be evaluated for thermal resistance and footprint compatibility.