STMicroelectronics TS3330AQPR

Overview

TS3330AQPR from STMicroelectronics is a micropower, high-precision series voltage reference delivering a stable 3.0 V output with ±0.15 % initial accuracy, 3.9 μA typical quiescent current at 25 °C, and 30 ppm/°C max temperature coefficient over –40 to +125 °C. It supports capacitive loads up to 10 µF and operates from 3.2 V to 5.5 V input, making it ideal for battery-powered instrumentation and portable medical sensors.

For engineers reviewing the TS3330AQPR datasheet, TS3330AQPR pinout, TS3330AQPR application, or TS3330AQPR equivalent, key selection criteria include ultra-low IQ for energy-constrained designs, tight initial tolerance for calibration-critical signal chains, thermal stability across automotive under-hood temperatures, and QFN8 1.5×1.5 mm package compatibility with space-limited PCB layouts.

Technical Context

The TS3330AQPR uses a bandgap-based series topology with internal trimming for precision, enabling operation as a two-terminal shunt-like reference without external feedback-yet functions as a three-terminal series device requiring IN, OUT, and GND connections. Its architecture achieves <2 mV dropout at ±5 mA load and maintains stability with ceramic capacitors ≥0.1 µF.

It features built-in short-circuit protection (35 mA limit), turn-on settling time of 2 ms to 0.1 % with 1 µF output capacitor, and low-frequency noise of 67 µV_P-P (0.1–10 Hz), supporting high-resolution ADC biasing and precision DAC reference applications where drift and noise directly impact ENOB.

Key Specifications

Pinout & Package

TS3330AQPR is supplied in QFN8 1.5×1.5 mm package with wettable flanks, optimized for automated optical inspection and thermal performance (R_thJA = 159 °C/W). Pin configuration is validated per DS12001 Rev 6 Figure 1: top view shows Pin 1 (IN), Pin 2 (OUT), Pin 3 (GND), Pins 4–8 (NC).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision series voltage reference applications.

Compared with MAX6033AESA+ and ADR3430ARJZ-R7, TS3330AQPR offers the only QFN8 1.5×1.5 mm option among these three, balances ultra-low IQ (3.9 μA) with industrial-grade temperature range (–40 to +125 °C), and provides superior capacitive-load flexibility (0.1–10 µF), making it optimal for next-gen miniaturized industrial and automotive modules.

Availability

TS3330AQPR is available at Aetrix Electronics and suitable for portable medical sensors, industrial data loggers, and automotive cabin monitoring systems requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TS3330AQPR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

The TS33 family belongs to ST's precision analog portfolio, engineered specifically for ultra-low-power, high-accuracy voltage referencing in battery-operated and thermally demanding applications-emphasizing stability, small footprint, and robustness across extended temperature ranges.

FAQ

What is the minimum input voltage required for TS3330AQPR to regulate at 3.0 V?

The TS3330AQPR requires a minimum input voltage of 3.2 V to maintain regulation at 3.0 V output under ±5 mA load, per Table 7 in DS12001 Rev 6. At lighter loads (e.g., 0 mA), regulation is maintained down to 3.0 V input, but design margin mandates ≥3.2 V for full-spec operation across temperature and load extremes.

Can TS3330AQPR drive a 10 µF ceramic output capacitor without oscillation?

Yes-DS12001 Rev 6 Figure 18 (Stability Plan) confirms stable operation with 0.1–10 µF X7R ceramic capacitors across all load currents (0–±5 mA). No series resistance or ferrite bead is required, unlike many older references that demand ESR-tuned tantalums.

Is the QFN8 package of TS3330AQPR RoHS-compliant and halogen-free?

Yes-the TS3330AQPR QFN8 package meets RoHS Directive 2011/65/EU and is halogen-free per ST's ECOPACK2 specifications, as confirmed in Section 6 of DS12001 Rev 6 and ST's public environmental compliance database.

How does TS3330AQPR handle reverse-voltage conditions on the IN pin?

Per Table 1 (Absolute Maximum Ratings), the IN pin tolerates –0.3 V minimum voltage. Applying reverse voltage below this threshold risks permanent damage. No internal reverse-polarity protection is provided; external series diode or PMOS guard circuit is required for systems subject to accidental reverse connection.