Texas Instruments TLV70718APDQNR

Overview

TLV70718APDQNR from Texas Instruments is a 200-mA, low-quiescent-current (25 µA), low-noise LDO regulator delivering 1.8 V output with ±0.5% DC accuracy, 70 dB PSRR at 100 Hz, and stable operation with only 0.1 µF output capacitance - designed for power-sensitive portable RF subsystems such as baseband processors and PMIC rails in smartphones.

For engineers reviewing the TLV70718APDQNR datasheet, TLV70718APDQNR pinout, TLV70718APDQNR application, or TLV70718APDQNR equivalent, key selection criteria include dropout voltage at 150 mA (220–270 mV for 1.8 V output), thermal shutdown/overcurrent protection, active-high enable with 0.9 V logic threshold, and X2SON-4 package compatibility with space-constrained PCB layouts.

Technical Context

The TLV70718APDQNR implements a PMOS pass transistor architecture enabling ultra-low dropout and reverse-blocking behavior, with integrated bandgap reference and error amplifier delivering tight load/line regulation across –40°C to +125°C junction temperature. Its enable logic supports direct interfacing with low-voltage GPIOs (≥0.9 V high threshold).

Unlike standard TLV707 variants, the TLV70718APDQNR belongs to the "A" revision family (per SBVS153G Rev G), featuring tightened dropout voltage specs (e.g., 220 mV typ. at 150 mA for 1.8 V output) and enhanced current limit consistency (240–450 mA) under varying input/output conditions - critical for reliable operation in battery-powered edge devices.

Key Specifications

Pinout & Package

TLV70718APDQNR uses the DQN (X2SON-4) package: 1.0 mm × 1.0 mm, 4-pin, bottom-exposed thermal pad. Pin 1 (OUT) and Pin 2 (GND) are diagonally opposite; Pin 3 (EN) and Pin 4 (IN) complete the square layout. Thermal pad must be soldered for rated 125°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC70718ADQNR and MCP1700T-1802E/TT, TLV70718APDQNR uniquely balances 200 mA capability, 25 µA I_Q, 70 dB PSRR, and 0.1 µF stability - making it the only option qualified for RF-critical, space-constrained, battery-operated systems demanding simultaneous high current and low noise.

Availability

TLV70718APDQNR is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hub supply, and TV set-top box USB port regulation requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for TLV70718APDQNR 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 specializing in analog and embedded processing technologies, with leadership in power management ICs and precision analog solutions.

The TLV707 series was engineered specifically for portable RF and battery-powered applications - emphasizing ultra-low quiescent current, small-footprint packaging, and high PSRR to meet stringent EMI and runtime requirements in modern mobile devices.

FAQ

What is the maximum input voltage rating for TLV70718APDQNR?

The absolute maximum input voltage for TLV70718APDQNR is 6.0 V, as specified in the Absolute Maximum Ratings table. Operation beyond this voltage risks permanent damage. For reliable continuous operation, the recommended input range is 2.0 V to 5.5 V, ensuring proper regulation and thermal performance across –40°C to +125°C junction temperatures. TLV70718APDQNR must never be exposed to input transients exceeding 6.0 V, even momentarily.

Does TLV70718APDQNR include reverse-current protection?

Yes, TLV70718APDQNR incorporates reverse-current blocking via its PMOS pass transistor architecture - preventing current flow from OUT to IN when V_OUT > V_IN. However, the internal body diode remains conductive under extended reverse bias, so external current limiting (≤5% of rated output current) is recommended if sustained reverse voltage is expected. This behavior is explicitly documented in Section 7.3.1 of the TLV707 datasheet.

Can TLV70718APDQNR operate without an output capacitor?

No, TLV70718APDQNR requires a minimum effective output capacitance of 0.1 µF for stability, as confirmed in Section 1 Features and Section 6.5 Electrical Characteristics. While it does not mandate a specific ESR, the capacitor must maintain ≥0.1 µF under actual operating bias and temperature (accounting for dielectric derating). Omitting C_OUT or using undersized/derated capacitors will cause oscillation and loss of regulation.

What is the typical start-up time of TLV70718APDQNR?

The typical start-up time for TLV70718APDQNR is 100 µs, defined as the time from EN assertion to V_OUT reaching 98% of 1.8 V, measured with C_OUT = 1.0 µF and I_OUT = 150 mA (Section 6.5 Electrical Characteristics). This fast turn-on supports responsive power sequencing in multi-rail systems. TLV70718APDQNR achieves this without external soft-start circuitry due to internal slew-rate control.

Is TLV70718APDQNR pin-compatible with other TLV707 variants?

Yes, TLV70718APDQNR shares identical pinout, package (DQN/X2SON-4), and footprint with all TLV707 and TLV707P family members in the same package option - including TLV70712, TLV70728, and TLV70733. All variants use the same OUT–GND–EN–IN pin assignment and thermal pad layout, enabling drop-in replacement across output voltages without PCB redesign.