Texas Instruments TPS70630DRVR

Overview

TPS70630DRVR from Texas Instruments is a fixed-output 3.0-V, 150-mA ultralow-quiescent-current LDO voltage regulator in WSON-6 package, featuring 1 µA typical quiescent current, 245 mV dropout at 50 mA, reverse current protection, and ±2% output accuracy over –40°C to +125°C. It serves as a precision power rail for always-on subsystems in portable battery-powered devices.

For engineers reviewing the TPS70630DRVR datasheet, TPS70630DRVR pinout, TPS70630DRVR application, or TPS70630DRVR equivalent, key selection criteria include shutdown current (150 nA), thermal shutdown threshold (158°C), PSRR (80 dB @ 10 Hz), output noise (190 µV_RMS), and compatibility with 2.2-µF ceramic output capacitors.

Technical Context

The TPS70630DRVR uses a PMOS pass transistor architecture enabling low dropout and inherent reverse current blocking without external components. Its precision band-gap reference and error amplifier deliver 2% DC accuracy across temperature while maintaining ultralow IQ via optimized biasing.

Functional modes include normal regulation (VIN ≥ VOUT + VDO), dropout operation (VIN < VOUT + VDO but > VIN(min)), and active-high enable-controlled shutdown (VEN < 0.4 V). Thermal shutdown (158°C trip, 140°C reset) and internal current limit (200 mA min) provide fault resilience without external circuitry.

Key Specifications

Pinout & Package

TPS70630DRVR is packaged in a thermally enhanced 2.00 mm × 2.00 mm WSON-6 (DRV) package with exposed thermal pad electrically tied to GND. The pad must be soldered to a PCB ground plane for optimal thermal performance (R_θJB = 42.6°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS70630DRVR, TPS70633DRVR offers identical performance at 3.3 V but cannot replace the 3.0-V variant without redesign; MCP1703T-3002E/MB trades reverse current protection and lower IQ for lower cost and smaller footprint, making it suitable only where reverse leakage is externally managed.

Availability

TPS70630DRVR is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, medical point-of-care devices, and smart camera modules requiring stable component supply with long-term lifecycle assurance.

Supply support for TPS70630DRVR 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 and embedded processing technologies, with decades of expertise in power management IC design and manufacturing.

The TPS706 series was developed specifically for ultralow-power, always-on applications in portable and battery-constrained systems, emphasizing quiescent current optimization, reverse current blocking, and robust thermal protection.

FAQ

What is the maximum input voltage rating for the TPS70630DRVR?

The absolute maximum input voltage for TPS70630DRVR is 7 V, but the recommended operating range is 2.7 V to 6.5 V. Exceeding 7 V risks permanent damage. For reliable long-term operation, maintain VIN within the recommended range and ensure sufficient headroom above 3.0 V to meet dropout requirements - e.g., ≥3.245 V at 50 mA load.

Does the TPS70630DRVR require an input capacitor?

The TPS70630DRVR does not require an input capacitor for stability, but TI strongly recommends a 0.1-µF to 2.2-µF ceramic capacitor from IN to GND. This improves PSRR, suppresses high-frequency noise, enhances line transient response, and mitigates reactive source impedance effects - especially critical in battery-fed or switching-supply-derived inputs.

Can the TPS70630DRVR be used with output capacitance below 2.2 µF?

For the TPS70630DRVR (3.0-V output), the minimum stable output capacitance is 2.2 µF ceramic (X5R/X7R). Capacitances below this value risk instability, excessive overshoot/undershoot during load transients, and potential oscillation. TI specifies 2.2 µF as the validated minimum - reducing it compromises guaranteed performance and reliability.

How does reverse current protection function in the TPS70630DRVR?

The TPS70630DRVR integrates active reverse current protection that blocks current flow from OUT to IN whenever V_OUT > V_IN, limiting leakage to 10 nA typical. This feature operates independently of EN state and remains active even when disabled. It eliminates the need for external blocking diodes in backup-power or dual-rail systems, preserving efficiency and board space.

What thermal considerations apply to the TPS70630DRVR in WSON-6 package?

The TPS70630DRVR in DRV package has R_θJB = 42.6°C/W and R_θJA = 73.1°C/W. To maintain T_J ≤125°C, the PCB must include a solid GND-connected thermal pad and adequate copper area. At 150 mA and 3.0-V output from 5.0-V input, power dissipation is ~300 mW - requiring ≥2 cm² of 2-oz copper for safe continuous operation in 70°C ambient.