Texas Instruments

TPS76901HDBVT

TPS76901HDBVT Description

The TPS76901HDBVT from Texas Instruments is a low-dropout (LDO) linear voltage regulator designed for precision power management in space-constrained applications. This adjustable-output regulator supports an input voltage range up to 10V and delivers a stable output voltage adjustable from 1.2V to 4.5V with a 100mA current capability. Housed in a compact SOT23-5 package, it is ideal for portable and battery-powered systems requiring high efficiency and minimal board footprint. Despite its obsolete status, it remains a reliable choice for legacy designs due to its robust performance and compliance with ROHS3 and REACH standards.

TPS76901HDBVT Features

• Ultra-Low Quiescent Current (28 µA): Enhances battery life in portable devices.
• High PSRR (60dB at 1kHz): Ensures clean output voltage by rejecting input noise.
• Integrated Protection: Includes over-current, over-temperature, and reverse-polarity safeguards.
• Enable Control: Allows power sequencing and standby mode for energy savings.
• Wide Input Range (Up to 10V): Supports diverse power sources, including unregulated adapters.
• Surface-Mount (SOT23-5): Optimized for space-constrained PCB layouts.

TPS76901HDBVT Applications

• Portable Electronics: Ideal for handheld devices, wearables, and IoT sensors due to low Iq and small form factor.
• Battery-Powered Systems: Suitable for backup power circuits and energy-harvesting applications.
• Industrial Controls: Used in sensor interfaces and low-power microcontrollers requiring stable voltage rails.
• Legacy Designs: A dependable choice for maintaining existing systems where obsolescence is not a constraint.

Conclusion of TPS76901HDBVT

The TPS76901HDBVT excels in delivering precise, low-noise power with minimal energy waste, making it a strong candidate for battery-sensitive and compact designs. While newer alternatives may offer higher current or advanced features, its combination of PSRR, protection mechanisms, and adjustability ensures relevance in niche applications. Engineers valuing reliability and proven performance in legacy or low-power systems will find this LDO regulator a pragmatic solution.