TPS74801RGWT

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

The TPS74801RGWT is a single-output adjustable low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It delivers a maximum output current of 1.5 A with an input voltage range from 0.8 V to 5.5 V. The device features a programmable soft-start function and provides a power-good (PG) output signal for system monitoring. It operates within a temperature range of -40°C to +125°C and offers high accuracy against line, load, and temperature variations. The regulator is housed in a compact 5 mm x 5 mm VQFN-20 package suitable for space-constrained automotive applications.

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

• Features a programmable soft-start mechanism to minimize inrush current during startup
• Includes a power-good output pin for precise supply status monitoring and sequencing
• Maintains stability with any output capacitor greater than or equal to 2.2 µF
• Provides high precision regulation across line, load, temperature, and process variations

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

• Telematics control units
• Infotainment systems and combination instrument clusters
• Automotive audio head units
• Medium-range and short-range radar systems

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

Verify the specific suffix RGWT corresponds to the VQFN-20 package configuration when sourcing. Confirm that the component meets AEC-Q100 qualification requirements if intended for automotive grade deployment. Ensure compatibility with the required output capacitance of at least 2.2 µF ceramic capacitors for stable operation. Cross-reference the datasheet revision history for any recent design changes affecting pinout or thermal characteristics.

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

Select this model when a high-current LDO with ultra-low minimum input voltage is required for automotive environments. The adjustable output range supports various logic levels and sensor supplies. Consider the VQFN-20 package for improved thermal dissipation compared to smaller footprints. Evaluate the need for the power-good signal for complex power sequencing architectures in central electronic modules.

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

This component belongs to the TPS74801 family of automotive-grade LDOs designed for robust power management. It complements other variants like the TPS74801DRCR which utilizes a VSON-10 package. The series is engineered to support modern vehicle electronics requiring efficient power conversion with minimal external component count. It serves as a critical power source for sensitive digital and analog circuits in demanding thermal conditions.

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

• TPS74801RGWR

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

What is the minimum output capacitance required for stable operation?

The TPS74801RGWT requires an output capacitance of at least 2.2 µF to ensure stability.

Does the device include protection features?

Yes, it includes overcurrent protection, thermal shutdown, and undervoltage lockout (UVLO).