Texas Instruments TLV707085DQNR

Overview

TLV707085DQNR from Texas Instruments is a 200-mA, low-quiescent-current (25 μA), low-noise LDO regulator with 0.85 V fixed output voltage in a 1-mm × 1-mm X2SON (DQN) package. It delivers ±1.5% DC accuracy, 70 dB PSRR at 100 Hz, and stable operation with only 0.1 μF output capacitance - enabling compact, cost-sensitive power rails for RF-sensitive portable electronics.

For engineers reviewing the TLV707085DQNR datasheet, TLV707085DQNR pinout, TLV707085DQNR application, or TLV707085DQNR equivalent, key selection criteria include ultra-low IQ for battery longevity, dropout voltage under 360 mV at 150 mA (for 2.8 V output), thermal shutdown/overcurrent protection, and compatibility with low-bias ceramic capacitors in space-constrained layouts.

Technical Context

The TLV707085DQNR implements a PMOS pass transistor architecture with internal bandgap reference, enabling fast line/load transient response and regulation down to zero load. Its enable pin (EN) features TTL-compatible thresholds (VIH = 0.9 V, VIL = 0.4 V), supporting direct interfacing with low-voltage GPIOs.

Unlike the TLV707P variant, TLV707085DQNR lacks active pulldown circuitry - it does not discharge the output during shutdown. It operates across –40°C to +125°C junction temperature and supports input voltages from 2.0 V to 5.5 V with 200-mA maximum output current.

Key Specifications

Pinout & Package

TLV707085DQNR uses the DQN (X2SON, 4-pin) package: 1.00 mm × 1.00 mm footprint with wettable flanks, optimized for automated optical inspection (AOI) and high-density portable PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL720F185PDBVR and MCP1700T-1802E/MB, TLV707085DQNR provides superior noise performance (45 µV_RMS vs >60 µV_RMS) and smaller stabilization capacitance - making it the optimal choice for miniaturized, battery-powered RF and sensor subsystems demanding long life and signal integrity.

Availability

TLV707085DQNR is available at Aetrix Electronics and suitable for wearable health sensors, Bluetooth LE earbuds, smartphone camera modules, and industrial wireless sensor nodes requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV707085DQNR 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 technologies, with decades of LDO design heritage for portable and industrial applications.

The TLV707 series was engineered specifically for ultra-low-power, space-constrained portable electronics - prioritizing quiescent current, PSRR, and minimal external component count without sacrificing reliability or thermal robustness.

FAQ

What is the minimum input voltage required for TLV707085DQNR to regulate 0.85 V output?

The TLV707085DQNR requires a minimum input voltage of 2.0 V per its Recommended Operating Conditions. While dropout voltage at 150 mA is 325 mV for outputs ≥2.8 V, the 0.85 V variant's dropout is not explicitly tabulated - however, the device guarantees regulation across the full 2.0–5.5 V input range with 0.85 V output, provided thermal limits are observed. Always maintain ≥200 mV headroom for margin in production designs.

Does TLV707085DQNR include an active pulldown circuit for output discharge during shutdown?

No, TLV707085DQNR does not include active pulldown. That feature is exclusive to the TLV707P family variants (e.g., TLV707P085). When EN is pulled low, TLV707085DQNR enters shutdown with only 1 μA current draw, but the OUT pin remains floating - external discharge circuitry is required if rapid voltage decay is needed.

Can TLV707085DQNR operate with a 0.1 μF X5R ceramic capacitor at the output?

Yes - TLV707085DQNR is explicitly characterized and guaranteed stable with an effective output capacitance of 0.1 μF or greater. A 0.1 μF X5R capacitor (e.g., 0402 case, 6.3 V rating) meets this requirement under typical bias and temperature conditions, enabling minimal footprint and cost savings versus larger 1 μF solutions.

What is the thermal resistance (RθJA) of TLV707085DQNR in its DQN package?

The junction-to-ambient thermal resistance (RθJA) for TLV707085DQNR in the DQN (X2SON) 4-pin package is 208.1°C/W, measured on a standard JEDEC 2-layer board. This value assumes proper thermal pad soldering to PCB copper; adding thermal vias beneath the pad can reduce RθJA by up to 30% in optimized layouts.

Is TLV707085DQNR compatible with lithium coin-cell batteries (e.g., CR2032)?

Yes - TLV707085DQNR supports input voltages down to 2.0 V, matching the nominal 3.0 V and end-of-life ~2.0 V range of CR2032 cells. Its 25 μA quiescent current and 1 μA shutdown current make it ideal for multi-year battery life in low-duty-cycle sensor applications powered by coin cells.