Texas Instruments TLV70718ADQNR

Overview

TLV70718ADQNR from Texas Instruments is a 200-mA, low-quiescent-current (25 µA), low-noise (45 µVRMS), fixed 1.8-V output LDO regulator in a 1-mm × 1-mm X2SON-4 (DQN) package. It delivers ±0.5% DC accuracy, supports 2.0–5.5 V input, and maintains regulation with no load - designed for power-sensitive portable electronics such as wearable sensors and RF subsystems.

For engineers reviewing the TLV70718ADQNR datasheet, TLV70718ADQNR pinout, TLV70718ADQNR application, or TLV70718ADQNR equivalent, key selection criteria include dropout voltage at 150 mA (220–270 mV), PSRR of 70 dB @ 100 Hz / 50 dB @ 1 MHz, stability with ≥0.1 µF output capacitance, and thermal/overcurrent protection - all critical for battery-powered, space-constrained designs.

Technical Context

The TLV70718ADQNR uses a PMOS pass transistor architecture enabling ultra-low dropout and fast transient response. Its enable logic requires only 0.9 V to activate and 0.4 V to disable, compatible with low-voltage GPIOs. Internal current limiting (240–450 mA) and thermal shutdown operate across –40°C to +125°C junction temperature.

Unlike the TLV707P variant, TLV70718ADQNR lacks active pulldown circuitry (RPULLDOWN = N/A). It achieves stable regulation with minimal 0.1 µF effective output capacitance - reducing BOM cost and PCB area versus traditional LDOs requiring ≥1 µF ceramics.

Key Specifications

Pinout & Package

TLV70718ADQNR is housed in a 1-mm × 1-mm, 4-pin X2SON (DQN) package with wettable flanks for automated optical inspection. The exposed thermal pad (pin 5, non-electrical) improves thermal dissipation in high-density layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL720F18-DBVR and MCP1804T-1802I/OT, TLV70718ADQNR offers the smallest footprint (1 mm² vs. 4.6 mm² and 4.6 mm²), tightest DC accuracy (±0.5% vs. ±1%), and integrated enable functionality - making it optimal for miniaturized, precision-powered portable systems.

Availability

TLV70718ADQNR is available at Aetrix Electronics and suitable for wearable electronics, Bluetooth LE audio subsystems, and industrial wireless nodes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TLV70718ADQNR 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 delivering analog and embedded processing solutions, with deep expertise in power management ICs for portable and industrial applications.

The TLV707 series was developed specifically for space-constrained, battery-powered devices demanding ultra-low IQ, high PSRR, and minimal external components - targeting smartphones, wearables, and IoT edge nodes.

FAQ

What is the minimum input voltage required for TLV70718ADQNR to regulate 1.8 V at 150 mA?

The TLV70718ADQNR requires a minimum input voltage of 2.02 V to maintain regulation at 150 mA output, based on its typical dropout voltage of 220 mV (VOUT + VDO = 1.8 V + 0.22 V). This headroom enables extended battery runtime in single-cell Li-ion or alkaline systems where voltage drops below 2.5 V during discharge.

Does TLV70718ADQNR include an enable (EN) pin, and what are its logic thresholds?

Yes, TLV70718ADQNR includes an active-high EN pin (Pin 3). It enables regulation when voltage exceeds 0.9 V and enters shutdown when voltage falls below 0.4 V. This low-enable threshold allows direct interfacing with 1.8-V GPIOs without level-shifting, simplifying host MCU integration.

Can TLV70718ADQNR operate without any load connected to its output?

Yes, TLV70718ADQNR regulates to its specified ±0.5% accuracy even with zero load current. Its design maintains stability and output voltage precision across the full 0–200 mA load range, eliminating the need for dummy loads in always-on or intermittent-sensing applications.

What is the maximum allowable input voltage for TLV70718ADQNR?

The absolute maximum input voltage for TLV70718ADQNR is 6.0 V. However, the recommended operating range is 2.0 V to 5.5 V. Operating above 5.5 V risks exceeding safe junction temperature limits and may trigger thermal shutdown, especially at high ambient temperatures or high output currents.

Is TLV70718ADQNR stable with a 0.1 µF output capacitor, and what type is recommended?

Yes, TLV70718ADQNR is explicitly characterized for stability with ≥0.1 µF effective output capacitance. TI recommends X5R or X7R ceramic capacitors (e.g., 0402 1.0 µF) because their bias and temperature derating still yields >0.1 µF under operating conditions - enabling smaller footprints than traditional 1-µF requirements.