TLV7042DGKR

Comparators Overview

The TLV7042DGKR is a fixed-output linear low-dropout (LDO) regulator 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 supports an input voltage range up to 24 V and features ultralow quiescent current, typically 3.2 µA. Key electrical parameters include a maximum dropout voltage of 1.1 V at 100 mA and a power supply rejection ratio (PSRR) of 60 dB at 100 kHz. It operates within a junction temperature range of -40°C to 125°C and is housed in a SC-74A (SOT-753) surface-mount package.

Comparators Feature Summary

• Ultralow quiescent current consumption for extended battery life
• High input voltage tolerance up to 24 V
• Integrated overcurrent and reverse polarity protection
• Stable operation with small ceramic output capacitors

Comparators Applications

• Battery-powered portable electronic devices
• Wireless sensor nodes and IoT modules
• Microcontroller power supply rails
• RF circuit biasing and analog front-end power

Comparators Procurement Notes

Verify the complete part number including the suffix DGKR to confirm the specific tape-and-reel packaging and manufacturer lot codes. Ensure compatibility with the SC-74A footprint on the target PCB layout. Cross-reference the datasheet revision date to confirm thermal and electrical specifications match the design requirements before finalizing procurement orders.

Comparators Selection Notes

Select this component when a stable 2.5 V rail is required from a higher voltage source with minimal static power draw. The 150 mA current limit suits low-power logic and sensor interfaces. Verify that the input voltage remains within the 24 V absolute maximum rating and that the expected load current does not exceed the device's thermal dissipation capabilities in the chosen enclosure environment.

Comparators Part Context

This device belongs to the TLV704 family of ultralow IQ LDO regulators designed for space-constrained and energy-efficient applications. The family offers various fixed output voltages and shares common pinouts and protection features. The DGKR suffix specifically denotes the SC-74A package variant optimized for high-density surface-mount assembly processes.

Comparators Replacement Considerations

Compatible substitutes within the same family include TLV7042DCKR and TLV7042DBVT, which offer identical electrical characteristics but utilize different package types such as SOT-23-5 or DRCR. Verify pinout compatibility and thermal performance before substituting.