Texas Instruments TPS2030IDRQ1

Overview

TPS2030IDRQ1 from Texas Instruments is an automotive-qualified single-channel N-channel MOSFET high-side power distribution switch with 33-mΩ on-resistance at 5-V input, 0.3-A current-limit threshold, and integrated short-circuit/thermal protection - used in automotive infotainment power rail control and USB port protection.

For engineers reviewing the TPS2030IDRQ1 datasheet, TPS2030IDRQ1 pinout, TPS2030IDRQ1 application, or TPS2030IDRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 2 qualification, SOIC-8 package, logic-level enable compatibility, 2.7–5.5-V operating range, and overcurrent logic output for system fault monitoring.

Technical Context

The TPS2030IDRQ1 implements an internal charge pump to drive the N-channel MOSFET gate above source potential, enabling full enhancement down to 2.7 V input while maintaining controlled 6.1-ms rise time and 3.4-ms fall time. Its current-sense FET architecture eliminates series sensing resistors and enables precise constant-current limiting without added conduction loss.

Thermal shutdown activates at ~140°C junction temperature with ~20°C hysteresis, and undervoltage lockout disables the switch below ~2 V input. The OC open-drain output asserts low during overcurrent or thermal events and remains latched until fault removal - supporting fail-safe host microcontroller monitoring in automotive subsystems.

Key Specifications

Pinout & Package

TPS2030IDRQ1 is housed in an 8-pin SOIC (D) package with gull-wing leads, tape-and-reel packaging (R suffix), and standard JEDEC MS-012AC footprint. Thermal resistance θ_JA = 172°C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side power switch applications.

Compared with TPS2030IDRQ1, TPS2031IDRQ1 offers scalable current capacity within identical footprint and thermal behavior, while TPS2051BDRQ1 trades on-resistance and enable polarity for higher current and lower BOM cost - making each suitable for distinct automotive subsystem power tiers.

Availability

TPS2030IDRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and telematics control units requiring stable component supply across extended temperature ranges and AEC-Q100-compliant sourcing.

Supply support for TPS2030IDRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and automotive ICs with emphasis on reliability, safety, and system-level integration.

The TPS203x-Q1 product line was designed specifically for automotive power distribution - delivering robust, current-limited, thermally protected high-side switching in compact SOIC packages for infotainment, body electronics, and ADAS subsystems.

FAQ

What is the maximum continuous output current rating for TPS2030IDRQ1?

The TPS2030IDRQ1 has a typical short-circuit current limit of 0.3 A at 25°C, with a minimum guaranteed value of 0.22 A and maximum of 0.4 A across temperature and voltage. This defines its continuous safe operating current under fault conditions - not steady-state DC rating. For reliable long-term operation, design loads should remain well below this threshold with appropriate derating.

Does TPS2030IDRQ1 support hot-plug operation in automotive systems?

Yes, TPS2030IDRQ1 is explicitly designed for hot-plug applications. Its controlled 6.1-ms rise time, integrated current limiting, and OC fault flag enable safe insertion of modules like USB peripherals or cameras while the main system remains powered. The device also features undervoltage lockout to prevent erratic behavior during brown-out conditions common in vehicle electrical systems.

How does the OC pin function on TPS2030IDRQ1, and what external components are needed?

The OC pin on TPS2030IDRQ1 is an open-drain output that pulls low during overcurrent or thermal fault conditions. It requires an external pull-up resistor (typically 10 kΩ to 5 V or 3.3 V) to generate a valid logic-high signal when idle. For noisy environments or heavy capacitive loads, an RC filter (e.g., 10-kΩ resistor + 100-nF capacitor) can be added to suppress false OC assertions caused by inrush current transients.

Is TPS2030IDRQ1 compatible with 3.3-V logic enable signals?

Yes, TPS2030IDRQ1's EN input is fully compatible with 3.3-V logic. Its VIH threshold is specified at 2.0 V minimum across the full operating temperature range, ensuring reliable turn-on with standard 3.3-V CMOS outputs. The input leakage current is ≤0.5 µA, minimizing loading on driving GPIOs.

What thermal protection behavior does TPS2030IDRQ1 exhibit during sustained overload?

Under sustained overload, TPS2030IDRQ1 first enters constant-current mode at its 0.3-A limit. If power dissipation raises junction temperature to ~140°C, thermal shutdown disables the switch. After cooling ~20°C, it automatically recovers and re-enables - cycling on/off until the fault is removed. This prevents permanent damage while maintaining system visibility via the OC pin.