Texas Instruments TPS7A1006PDSET

Overview

TPS7A1006PDSET from Texas Instruments is a 300-mA, ultra-low-dropout linear regulator with dual-supply architecture (VIN + VBIAS), fixed 0.6-V output, 70-mV max dropout at 300 mA (YKA package), ±1.5% output accuracy over –40°C to +125°C, and 1.6-µA VIN quiescent current - designed for powering sub-1-V core rails in battery-constrained wearable sensors and camera modules.

For engineers reviewing the TPS7A1006PDSET datasheet, TPS7A1006PDSET pinout, TPS7A1006PDSET application, or TPS7A1006PDSET equivalent, key selection criteria include its 0.75-V minimum input voltage, BIAS-rail dependency for LILO operation, WSON-6 (DSE) package thermal performance (RθJA = 188.8°C/W), and active discharge functionality (P-version only).

Technical Context

The TPS7A1006PDSET implements a dual-rail LDO architecture where VIN supplies power to the pass element while VBIAS (1.7–5.5 V) powers internal control circuitry - enabling stable regulation down to 0.5 V output from inputs as low as 0.75 V. Its global UVLO requires both VIN > 675 mV (rising) and VBIAS > 1.54 V (rising) before enabling regulation.

It features a P-version–specific active pulldown circuit (120-Ω resistor to GND) triggered by EN low or thermal shutdown, with monotonic soft-start and high PSRR (60 dB @ 1 kHz). Dropout is specified separately for VIN (70 mV max @ 300 mA, YKA) and VBIAS (1.05 V max @ 300 mA), confirming independent rail dependencies.

Key Specifications

Pinout & Package

TPS7A1006PDSET is packaged in a 1.50-mm × 1.50-mm, 6-pin WSON (DSE) package with wettable flanks, optimized for automated optical inspection and thermal dissipation in space-constrained PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-voltage LDO applications.

Compared with TPS7A1005PDSET and TPS7A1010PDSET, the TPS7A1006PDSET uniquely balances ultra-low core voltage (0.6 V) with robust 300-mA delivery and 70-mV dropout - making it optimal for next-gen wearables where energy efficiency and die area constrain dictate sub-1-V operation without sacrificing transient response or thermal headroom.

Availability

TPS7A1006PDSET is available at Aetrix Electronics and suitable for smart watches, wireless earbuds, camera modules, and portable medical devices requiring stable component supply with guaranteed long-term manufacturability and traceable sourcing.

Supply support for TPS7A1006PDSET 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 connectivity technologies for industrial, automotive, and consumer applications.

The TPS7A10 family is engineered for ultra-portable, battery-powered systems demanding sub-1-V regulation, ultra-low IQ, and dual-rail flexibility - targeting wearables, hearables, and miniaturized medical sensors where every microwatt and square millimeter matters.

FAQ

What is the minimum input voltage required for TPS7A1006PDSET to regulate at 0.6 V?

The TPS7A1006PDSET requires a minimum VIN of 0.75 V to maintain regulation at 0.6 V output. This ultra-low input threshold is enabled by its dual-rail architecture, where the BIAS pin (1.7–5.5 V) powers internal circuitry independently. Below 0.75 V, the global UVLO prevents enablement, ensuring predictable startup behavior.

Does TPS7A1006PDSET support active output discharge, and how is it implemented?

Yes, TPS7A1006PDSET (P-version) includes active output discharge. When EN is driven low or thermal shutdown occurs, an internal 120-Ω pulldown resistor connects OUT to GND. Discharge time depends on COUT and parallel load resistance, calculated as τ = 120·RL/(120 + RL)·COUT. This feature ensures fast, controlled VOUT decay - eliminating floating states that could cause downstream logic glitches.

Can the EN pin of TPS7A1006PDSET be left unconnected, or must it be tied to a voltage rail?

The EN pin of TPS7A1006PDSET must not be left floating. It must be actively driven high (>0.9 V) to enable regulation or low (≤0.4 V) to disable. If enable functionality is unused, EN may be tied to VIN - but only if VIN remains ≥0.9 V during all operating conditions. Tying EN to VBIAS is also acceptable and avoids dependency on VIN stability during startup.

What is the maximum allowable junction temperature for continuous operation of TPS7A1006PDSET?

The TPS7A1006PDSET has a maximum operating junction temperature (TJ) of +125°C, with thermal shutdown activating at +160°C (rising) and resetting at +145°C (falling). In the 1.50-mm × 1.50-mm WSON-6 (DSE) package, its RθJA is 188.8°C/W - meaning at 300 mA and 100°C ambient, junction temperature rises ≈56.6°C above ambient, staying well within safe limits without forced airflow or heatsinking.

How does the BIAS pin improve efficiency compared to conventional single-rail LDOs?

The BIAS pin decouples control circuitry power from the main pass transistor path. While VIN supplies only the output current (300 mA), VBIAS (1.7–5.5 V) powers the error amplifier, reference, and driver - allowing VIN to operate near VOUT (e.g., 0.75 V for 0.6 V out) without starving internal logic. This architecture reduces total power loss versus single-rail LDOs, especially in LILO applications where traditional regulators would require ≥1.2-V input for 0.6-V output.