TLV74125PDQNR

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

The TLV74125PDQNR is a fixed-output linear regulator from the TLV741P family, manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with a maximum continuous output current of 150 mA. The device operates within an input voltage range up to 5.5 V and features a typical dropout voltage of 380 mV at full load. Key electrical specifications include a quiescent current of 50 µA and power supply rejection ratios ranging from 70 dB at 100 Hz to 55 dB at 1 MHz. It is housed in a compact 4-X2SON (1x1) package.

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

• Integrates active output discharge circuitry to rapidly reduce output voltage when disabled.
• Includes an enable pin for precise control of power consumption and system sequencing.
• Provides comprehensive protection against overcurrent conditions, thermal overload, and undervoltage lockout.

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

• Battery-powered portable electronics requiring low standby current
• Embedded systems utilizing microcontrollers or sensors needing stable 2.5 V rails
• Industrial control modules operating under harsh environmental conditions

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

Verify the specific suffix PDQNR to confirm the X2SON-4 package and tape-and-reel packaging format. Ensure compatibility with RoHS3 standards and check for any recent PCN updates regarding assembly materials or pin symbolization changes before finalizing procurement orders.

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

Select this component when a fixed 2.5 V output is required alongside minimal quiescent current consumption. The integrated active discharge feature distinguishes it from standard LDOs, making it suitable for applications demanding rapid power-down states. Verify that the 150 mA current capability meets the peak load requirements of the target circuit design.

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

This part belongs to the TLV741P series of low-dropout regulators designed for space-constrained applications. The series offers various fixed output voltages while maintaining consistent performance characteristics such as high PSRR and low noise. The PDQNR designation specifically identifies the quad flat no-leads variant optimized for surface-mount assembly processes.

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

Does the TLV74125PDQNR support adjustable output voltages?

No, the TLV74125PDQNR is a fixed-output regulator providing a constant 2.5 V. Adjustable versions are available within the same family but require different part numbers.

What is the function of the active output discharge feature?

The active output discharge ensures that the output voltage drops quickly to a safe level when the enable pin is deactivated, preventing residual charge from affecting downstream components.