Texas Instruments TPS74601PCQWDRVRQ1

Overview

TPS74601PCQWDRVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 1A ultra-low-dropout linear regulator with power-good (PG) output, fixed 1.0V output, 2mm × 2mm wettable-flank WSON-6 package, ±1.5% output accuracy over –40°C to +150°C, and 265mV max dropout at 1A (3.3V_OUT). It powers critical domains including automotive cluster displays and front/rear cameras where stable low-noise biasing and supply sequencing are required.

For engineers reviewing the TPS74601PCQWDRVRQ1 datasheet, TPS74601PCQWDRVRQ1 pinout, TPS74601PCQWDRVRQ1 application, or TPS74601PCQWDRVRQ1 equivalent, key selection criteria include its wettable-flank WSON-6 footprint for automated optical inspection, integrated thermal shutdown and foldback current limit, push-pull PG option supporting 1.0V–5.5V outputs, and compatibility with ≥1µF ceramic output capacitors for compact layout.

Technical Context

The TPS74601PCQWDRVRQ1 implements a precision band-gap reference and error amplifier to achieve ±0.85% typical output accuracy at 25°C and ±1.5% over full temperature range. Its internal foldback current limit reduces thermal dissipation during short-circuit events, while UVLO (1.21V–1.47V rising threshold) prevents erratic startup under marginal input conditions.

It supports both fixed-output (1.0V) and adjustable configurations via FB pin; this specific variant (TPS74601PCQWDRVRQ1) is the fixed 1.0V version in DRV (WSON-6) package with push-pull PG output. The EN pin enables precise power sequencing with 1.0V enable threshold and sub-µs startup time (200–650µs).

Key Specifications

Pinout & Package

TPS74601PCQWDRVRQ1 uses the DRV package: 6-pin, 2mm × 2mm wettable-flank WSON with exposed thermal pad electrically connected to GND. Wettable flanks support automated optical inspection (AOI) of solder joints in automotive production.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Compared with TPS74610PQWDRBRQ1 and TLV76710QWDRBRQ1, the TPS74601PCQWDRVRQ1 uniquely balances 1A capability, 2mm × 2mm wettable-flank packaging, and push-pull PG in a single AEC-Q100-compliant device-making it optimal for space-constrained, high-reliability automotive domains requiring full 1A delivery.

Availability

TPS74601PCQWDRVRQ1 is available at Aetrix Electronics and suitable for automotive head units, front/rear cameras, and cluster displays requiring stable component supply with full AEC-Q100 traceability and extended temperature support.

Supply support for TPS74601PCQWDRVRQ1 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 specializing in analog, embedded processing, and automotive-grade power management solutions with decades of automotive qualification expertise.

The TPS746-Q1 product line delivers ultra-low-dropout, AEC-Q100-compliant LDOs optimized for post-regulation in safety-critical automotive domains-including ADAS, infotainment, and body electronics-where reliability, thermal robustness, and AOI-compatible packaging are mandatory.

FAQ

What is the output voltage of the TPS74601PCQWDRVRQ1?

The TPS74601PCQWDRVRQ1 is a fixed-output LDO with a nominal output voltage of 1.0V. This value is factory-trimmed and does not require external feedback resistors. Output accuracy is ±0.85% typical at 25°C and ±1.5% over the full operating temperature range of –40°C to +150°C junction temperature. The TPS74601PCQWDRVRQ1 maintains this regulation under load currents up to 1A and input voltages from 1.5V to 6.0V.

Does the TPS74601PCQWDRVRQ1 support power sequencing with other supplies?

Yes, the TPS74601PCQWDRVRQ1 supports robust power sequencing via its active-high EN pin and push-pull power-good (PG) output. The EN pin enables the regulator when driven above 1.0V and disables it below 0.3V, allowing synchronization with system controllers. The PG pin asserts high when V_OUT reaches ≥92% of 1.0V (i.e., ≥0.92V), providing a clean, resistor-free sequencing signal for downstream devices. Startup time is 200–650µs to 95% of 1.0V.

What package type and thermal characteristics does the TPS74601PCQWDRVRQ1 have?

The TPS74601PCQWDRVRQ1 uses the DRV package: a 6-pin, 2mm × 2mm wettable-flank WSON with an exposed thermal pad connected to GND. Its junction-to-ambient thermal resistance (R_θJA) is 80.3°C/W. With proper PCB layout-including soldering the thermal pad to a solid GND plane-the device sustains 1A continuous output current at ambient temperatures up to +125°C while maintaining junction temperature ≤+150°C.

Can the TPS74601PCQWDRVRQ1 operate with small output capacitors?

Yes, the TPS74601PCQWDRVRQ1 is stable with a minimum 1µF ceramic output capacitor (X7R or X5R dielectric), enabling compact, low-cost designs. Unlike many LDOs requiring 10–22µF tantalum or aluminum electrolytic capacitors, this device achieves phase margin and transient response targets with small MLCCs. TI recommends ≥1µF at the OUT pin, placed as close as possible to minimize parasitic inductance and improve high-frequency noise rejection.

Is the TPS74601PCQWDRVRQ1 qualified for automotive applications?

Yes, the TPS74601PCQWDRVRQ1 is AEC-Q100 qualified for automotive applications (Grade 1: –40°C to +125°C ambient). It meets stringent automotive reliability standards including HTOL, TC, UHAST, and ESD (±2000V HBM). Its operating junction temperature range extends to +150°C, and it includes integrated protection features-thermal shutdown, foldback current limiting, and undervoltage lockout-to ensure safe operation in harsh vehicle environments.