Texas Instruments TLV70726PDQNT

Overview

TLV70726PDQNT from Texas Instruments is a 200-mA, low-noise, low-quiescent-current (25 µA) LDO regulator with fixed 2.6 V output, designed for power-sensitive portable electronics. It delivers ±0.5% DC accuracy, supports 0.1 µF minimum output capacitance, and features 70 dB PSRR at 100 Hz - enabling stable rail generation in RF sections of wearables and mobile devices.

For engineers reviewing the TLV70726PDQNT datasheet, TLV70726PDQNT pinout, TLV70726PDQNT application, or TLV70726PDQNT equivalent, key selection criteria include dropout voltage at 150 mA (220–270 mV), active pulldown resistance (120 Ω), shutdown current (1 µA), thermal shutdown/overcurrent protection, and compatibility with space-constrained 1-mm × 1-mm X2SON packaging.

Technical Context

The TLV70726PDQNT implements a PMOS pass transistor architecture with internal bandgap reference, enabling ultra-low quiescent current and fast load transient response (<100 µs startup). Its enable threshold (VIH = 0.9 V, VIL = 0.4 V) allows direct interfacing with low-voltage GPIOs.

Unlike standard TLV707 variants, the "P" suffix denotes integrated active pulldown circuitry (120 Ω) that discharges the output during shutdown - critical for preventing floating rails in multi-rail systems and meeting sequencing requirements in battery-powered applications.

Key Specifications

Pinout & Package

TLV70726PDQNT is housed in a 4-pin, 1.0 mm × 1.0 mm DQN (X2SON) package with wettable flanks, optimized for automated optical inspection (AOI) and high-density portable layouts. Thermal pad on underside enhances power dissipation in confined spaces.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL720F26PDQNR and TPS7A0526PDQNR, TLV70726PDQNT uniquely integrates active pulldown in the smallest X2SON footprint while maintaining identical 25-µA IQ and 200-mA capability - making it optimal for space- and sequencing-critical portable medical and audio devices.

Availability

TLV70726PDQNT is available at Aetrix Electronics and suitable for wearable electronics, Bluetooth audio peripherals, and portable medical diagnostics requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for TLV70726PDQNT 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 decades of expertise in power management ICs for portable and industrial applications.

The TLV707 series was engineered specifically for battery-powered RF and sensor subsystems - prioritizing ultra-low IQ, small footprint, and robust transient immunity in sub-3-V operating environments.

FAQ

What is the maximum input voltage rating for TLV70726PDQNT?

The absolute maximum input voltage for TLV70726PDQNT is 6.0 V, but the recommended operating range is 2.0 V to 5.5 V. Exceeding 5.5 V may trigger internal protection circuits or degrade long-term reliability. For designs using single-cell Li-ion batteries, the 5.5-V upper limit safely covers full charge voltage (4.2 V) plus transient spikes.

Does TLV70726PDQNT require an external pull-up resistor on the EN pin?

No - TLV70726PDQNT has no internal EN pull-up. However, its EN pin draws only 0.01 µA, so a high-value external pull-up (e.g., 10 MΩ to VIN) is sufficient for default-enable operation. When interfacing with open-drain GPIOs, a pull-up is mandatory to ensure reliable enable/disable transitions.

Can TLV70726PDQNT operate with zero load current?

Yes - TLV70726PDQNT regulates to ±0.5% accuracy even with no output load (IOUT = 0 mA), and its ground current remains at just 25 µA typical. This makes it ideal for biasing high-impedance nodes like op-amp references or crystal oscillator circuits where load current is negligible.

How does the active pulldown in TLV70726PDQNT affect output discharge time?

The 120-Ω internal pulldown resistor discharges the output capacitor with a time constant τ ≈ 120 Ω × C_OUT. With a typical 0.47 µF output cap, discharge to 10% of VOUT takes ~130 µs - enabling fast, deterministic rail collapse for power sequencing and meeting IEC 62368-1 safe discharge compliance without external components.

Is TLV70726PDQNT compatible with ceramic capacitors smaller than 1 µF?

Yes - TLV70726PDQNT is explicitly characterized and stable with output capacitance as low as 0.1 µF (e.g., 0402 0.1 µF X5R), provided effective capacitance under bias and temperature remains ≥0.1 µF. This enables significant PCB area reduction versus legacy LDOs requiring ≥1 µF.