Texas Instruments TPS70630DRVT

Overview

TPS70630DRVT from Texas Instruments is a fixed-output 3.0-V, 150-mA ultralow-quiescent-current LDO voltage regulator in a 6-pin WSON package. It delivers 2% output accuracy over –40°C to +125°C, features 1-µA typical quiescent current, reverse current protection, and 245-mV dropout at 50 mA - enabling long battery life in always-on portable systems such as wearable sensors and medical telemetry modules.

For engineers reviewing the TPS70630DRVT datasheet, TPS70630DRVT pinout, TPS70630DRVT application, or TPS70630DRVT equivalent, key selection criteria include its 1-µA IQ, 150-nA shutdown current, reverse-current blocking capability, thermal shutdown behavior at 158°C, and compatibility with low-ESR ceramic capacitors ≥2.2 µF for stability.

Technical Context

The TPS70630DRVT employs a PMOS pass transistor architecture to achieve low dropout and inherent reverse-current blocking without external diodes. Its precision band-gap reference and error amplifier maintain ±2% DC accuracy across temperature and load, while undervoltage lockout (UVLO) ensures clean power-up sequencing.

Functional modes include normal regulation (VIN ≥ VOUT + VDO), dropout operation (VIN < VOUT + VDO but > VIN(min)), and active-high enable-controlled shutdown with 150-nA ISHDN. Thermal shutdown triggers at ~158°C and resets at ~140°C, with internal current limiting beginning at ≥200 mA.

Key Specifications

Pinout & Package

TPS70630DRVT is housed in a thermally enhanced 2.0 mm × 2.0 mm WSON-6 package with an exposed thermal pad electrically connected to GND. The pad must be soldered to a PCB ground plane to achieve R_θJB = 42.6°C/W and ensure reliable 125°C junction operation under 150-mA load.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS70630DRVT, TPS70633DRVT offers identical performance in a pin-compatible package but targets 3.3-V systems, while MCP1700T-3002E/MB trades enable functionality and reverse-current blocking for lower cost and smaller footprint in static-power applications.

Availability

TPS70630DRVT is available at Aetrix Electronics and suitable for wearable health monitors, medical implantable sensors, and industrial wireless sensor nodes requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for TPS70630DRVT 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 company headquartered in Dallas, Texas, designing and manufacturing analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TPS706 series was developed specifically for battery-constrained, always-on applications demanding nanoscale quiescent current, robust protection features, and high accuracy across extreme temperatures - targeting next-generation wearables, medical telemetry, and IoT edge nodes.

FAQ

What is the maximum input voltage rating for TPS70630DRVT?

The absolute maximum input voltage for TPS70630DRVT is 7 V, but the recommended operating range is 2.7 V to 6.5 V. Exceeding 7 V risks permanent damage. For reliable operation with margin, keep VIN ≤6.5 V under all conditions including transients - this ensures compliance with the device's internal UVLO and thermal protection thresholds while maintaining 2% output accuracy.

Does TPS70630DRVT require an input capacitor?

TPS70630DRVT does not require an input capacitor for stability, but TI recommends a 0.1–2.2-µF X7R ceramic capacitor from IN to GND. This improves transient response, suppresses high-frequency noise from upstream sources, and enhances PSRR - especially critical when fed from switchers. Without it, line transients may cause output overshoot or instability during fast input voltage changes.

Can TPS70630DRVT be used with output capacitors smaller than 2.2 µF?

No - TPS70630DRVT requires a minimum effective output capacitance of 2.2 µF (X5R/X7R ceramic) for guaranteed stability across temperature and load. Capacitance below this value risks oscillation or poor transient response. The 2.2-µF value accounts for DC bias derating; a 4.7-µF 6.3-V X7R capacitor is commonly used to ensure ≥2.2 µF remains under 3.0-V bias.

How does reverse current protection work in TPS70630DRVT?

TPS70630DRVT integrates active reverse-current protection that blocks current flow from OUT to IN whenever VOUT > VIN, regardless of EN state. When triggered, internal circuitry places the power path in high impedance, limiting reverse leakage to <10 nA. This eliminates external blocking diodes and prevents battery backfeed in multi-supply systems - a key advantage over standard LDOs.

What is the thermal shutdown behavior of TPS70630DRVT?

TPS70630DRVT activates thermal shutdown at approximately 158°C junction temperature and resets at ~140°C. During sustained overload, it cycles between shutdown and regulation - a safety feature preventing permanent damage. However, continuous cycling degrades reliability; design must ensure R_θJA and ambient conditions keep T_J ≤125°C under worst-case load to avoid entering this mode.