In automotive battery-connected applications, low quiescent current (IQ) is important to save power and extend battery lifetime. Ultra-low IQ must be included for always-on systems.
The TPS7B82-Q1 is a low-dropout linear regulator designed to operate with a wide input-voltage range from 3V to 40V (45V load dump protection). Operation down to 3V allows the TPS7B82-Q1 to continue operating during cold-crank and start and stop conditions. With only 2.7µA typical quiescent current at light load, this device is an optimum design for powering microcontrollers (MCUs) and CAN/LIN transceivers in standby systems.
The device features integrated short-circuit and overcurrent protection. This device operates in ambient temperatures from –40°C to +125°C and with junction temperatures from –40°C to +150°C. Additionally, this device uses a thermally conductive package to enable sustained operation despite significant dissipation across the device. Because of these features, the device is designed as a power supply for various automotive applications.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TPS7B82-Q1 Automotive 300-mA, High-Voltage, Ultra-Low-IQ Low-Dropout Regulator datasheet (Rev. K) | PDF | HTML | 25 Sep 2025 |
| Product overview | Low Quiescent Current LDOs for Battery Connected Automotive Systems (Rev. A) | PDF | HTML | 22 Apr 2026 | |
| Application note | An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) | PDF | HTML | 23 Sep 2025 | |
| Functional safety information | TPS7B82-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) | PDF | HTML | 31 Dec 2020 | |
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 27 Jun 2019 | ||
| E-book | LDO Basics (Rev. A) | 08 Apr 2019 | ||
| Technical article | LDO basics: dropout | PDF | HTML | 16 Mar 2017 |
For additional terms or required resources, click any title below to view the detail page where available.
The TPS7B8250EVM evaluation module (EVM) lets you evaluate the operation and performance of the TPS7B82-Q1 device. The TPS7B82-Q1 device is a low-dropout (LDO) linear regulator designed for up to 40-V VIN with a 300-mA (maximum) output current. With only 2.7-μA typical quiescent current at (...)
The TPS7B82EVM-024 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7B82-Q1, which is an automotive 300-mA high-voltage ultra-low-IQ low-dropout (LDO) linear regulator.
TPS7B82EVM-024 is configured to be a reference design for (...)
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (PWP) | 14 | Ultra Librarian |
| HVSSOP (DGN) | 8 | Ultra Librarian |
| TO-252 (KVU) | 5 | Ultra Librarian |
| WSON (DRV) | 6 | Ultra Librarian |
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