Texas Instruments TPS7A1030PDSET

Overview

TPS7A1030PDSET from Texas Instruments is a 300-mA, ultra-low-dropout linear regulator (LDO) with dual-supply architecture (VIN + VBIAS), supporting input as low as 0.75 V and output down to 0.5 V. It delivers 1.5% output accuracy over load, line, and temperature (–40°C to +125°C), 70 mV max dropout at 300 mA (YKA package), and 60 dB PSRR at 1 kHz - optimized for powering ultra-low-voltage cores in battery-constrained wearables and sensor nodes.

For engineers reviewing the TPS7A1030PDSET datasheet, TPS7A1030PDSET pinout, TPS7A1030PDSET application, or TPS7A1030PDSET equivalent, this page provides verified package mapping (WSON-6, 1.50 mm × 1.50 mm), confirmed pin functions (IN/OUT/GND/EN/BIAS), thermal performance data (RθJA = 188.8°C/W), and validated alternatives for LILO (low-input, low-output) power rail design.

Technical Context

The TPS7A1030PDSET employs a dual-rail architecture where VIN supplies the pass element while VBIAS powers internal control circuitry - enabling stable regulation even when VIN is only 70 mV above VOUT. Its global UVLO requires both VIN ≥ 675 mV (rising) and VBIAS ≥ 1.54 V (rising) before enabling regulation.

It integrates active output discharge (P-version only, via 120-Ω pulldown resistor), monotonic soft-start (525–1200 µs startup time), and separate PSRR paths: 60 dB at 1 kHz from VIN and 60 dB at 1 kHz from VBIAS under 300 mA load - critical for noise-sensitive analog and RF subsystems.

Key Specifications

Pinout & Package

TPS7A1030PDSET is packaged in a 6-pin WSON (DSE) package, 1.50 mm × 1.50 mm, 0.5-mm pitch, wettable flank capable - suitable for automated optical inspection (AOI) and high-density portable PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7A1030PDSET, the XC6210B302MR-G offers lower dropout but cannot support 0.75 V inputs or 3.0 V output with 1.5% accuracy across full temperature range; the ADP125ARHZ-3.0-R7 provides higher current but sacrifices LILO capability and active discharge - making TPS7A1030PDSET uniquely suited for space- and battery-constrained 3.0 V core rails.

Availability

TPS7A1030PDSET is available at Aetrix Electronics and suitable for smart wearables, camera sensor power, and portable medical devices requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for TPS7A1030PDSET 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 power management ICs, with decades of LDO innovation and automotive-grade reliability validation.

The TPS7A10 product line was designed specifically for ultra-low-input, ultra-low-output (LILO) power delivery in battery-powered edge devices - prioritizing nanoscale packaging, sub-1 µA quiescent current, and dual-rail efficiency without sacrificing accuracy or PSRR.

FAQ

What is the minimum input voltage required for TPS7A1030PDSET to regulate 3.0 V output?

The TPS7A1030PDSET requires VIN ≥ 3.09 V (3.0 V + 90 mV max dropout) for full 300 mA load at room temperature. However, its dual-supply architecture allows VIN as low as 0.75 V when VBIAS ≥ 1.7 V - though regulation at 3.0 V output requires VIN ≥ VOUT + VDO, so actual minimum VIN depends on load and temperature. The device's global UVLO mandates VIN ≥ 675 mV (rising) before enabling.

Does TPS7A1030PDSET support active output discharge, and how does it function?

Yes, TPS7A1030PDSET (P-version) includes active output discharge via an internal 120-Ω pulldown resistor activated when EN is driven low or during thermal shutdown. This discharges COUT rapidly - time constant τ ≈ 120·RL/(120 + RL)·COUT - preventing floating outputs that could cause latch-up in downstream logic. The feature is absent in non-P variants.

What are the recommended capacitor values for TPS7A1030PDSET in a 3.0 V application?

For TPS7A1030PDSET delivering 3.0 V, TI specifies minimum CIN = 2.2 µF, CBIAS = 0.1 µF, and COUT = 2.2 µF (ceramic, X5R/X7R). For improved transient response and PSRR, COUT may be increased up to 22 µF. All capacitors must be placed within 2 mm of their respective pins, with low-ESR (<250 mΩ) and rated ≥6.3 V.

How does the VBIAS pin improve efficiency compared to single-supply LDOs?

The VBIAS pin powers TPS7A1030PDSET's internal control circuitry independently from VIN, allowing VIN to operate at ultra-low voltages (e.g., 0.8 V) while VBIAS runs from a higher-efficiency source (e.g., 3.3 V battery). This avoids forcing the entire LDO - including gate drive and error amplifier - to run from a marginal VIN, reducing total system IQ and improving light-load efficiency.

Is TPS7A1030PDSET pin-compatible with other TPS7A10 variants?

TPS7A1030PDSET uses the WSON-6 (DSE) package and shares identical pinout with all TPS7A10 DSE variants (e.g., TPS7A1015PDSET, TPS7A1025PDSET). Pin functions (IN/OUT/GND/EN/BIAS) and footprint are identical - only the fixed output voltage differs. No PCB redesign is needed when changing between DSE-packaged TPS7A10 parts.