Texas Instruments TLV70725PDQNR

Overview

TLV70725PDQNR from Texas Instruments is a 200-mA, low-quiescent-current (25 µA), low-noise LDO regulator with 2.5 V fixed output voltage, 0.5% DC accuracy, and 70 dB PSRR at 100 Hz - designed for power-sensitive portable electronics requiring stable rail generation under light-to-moderate load.

For engineers reviewing the TLV70725PDQNR datasheet, TLV70725PDQNR pinout, TLV70725PDQNR application, or TLV70725PDQNR equivalent, key selection factors include dropout voltage (325 mV @ 150 mA), thermal shutdown/overcurrent protection, 0.1-µF minimum output capacitance stability, and active pulldown (120 Ω) for fast output discharge in battery-powered systems.

Technical Context

The TLV70725PDQNR implements a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR across 100 Hz–1 MHz. Its enable logic requires only 0.9 V to activate and 0.4 V to disable, supporting direct interface 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 back-powering or latch-up in multi-rail systems with shared loads.

Key Specifications

Pinout & Package

TLV70725PDQNR uses the DQN (X2SON) 4-pin package: 1.00 mm × 1.00 mm footprint with wettable flanks, optimized for space-constrained portable PCBs. Thermal pad on underside enhances power dissipation in compact layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC70725DBVR and TPS7A0525PDBVR, TLV70725PDQNR uniquely combines 25 µA I_Q, 120 Ω active pulldown, and 0.1 µF stability - making it optimal for space- and battery-limited portable designs requiring autonomous, fast, and low-power rail control.

Availability

TLV70725PDQNR is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hubs, PC add-in card LDOs, and set-top box audio codec bias requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV70725PDQNR 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 for industrial, automotive, and personal electronics markets.

The TLV707 series was engineered specifically for portable RF and battery-powered applications demanding ultra-low quiescent current, fast transient response, and minimal board area - with the 'P' variant adding integrated pulldown for robust power sequencing.

FAQ

What is the minimum output capacitance required for stable operation of TLV70725PDQNR?

The TLV70725PDQNR is stable with an effective output capacitance of just 0.1 µF - significantly lower than conventional LDOs. This allows use of small-case ceramics (e.g., 0402 X5R) even after voltage and temperature derating. A 1-µF capacitor is recommended for optimal transient performance, but not required for stability.

Does TLV70725PDQNR support zero-load regulation, and why does that matter?

Yes, TLV70725PDQNR maintains 0.5% output accuracy even with zero load current. This is essential for biasing high-impedance analog inputs such as ADC voltage references, comparator thresholds, or op-amp feedback networks where load-dependent drift would degrade measurement accuracy or system linearity.

How does the active pulldown feature in TLV70725PDQNR improve system reliability?

The 120 Ω internal pulldown resistor in TLV70725PDQNR rapidly discharges the 2.5 V output during shutdown, preventing back-powering of upstream sources or latch-up in multi-rail systems. This eliminates need for external discharge circuits and ensures deterministic power-down sequencing in battery-powered devices.

What is the maximum input voltage rating for TLV70725PDQNR, and what happens if exceeded?

TLV70725PDQNR has an absolute maximum input voltage rating of 6.0 V. Exceeding this risks permanent damage to the PMOS pass transistor and internal bandgap circuitry. Operation above 5.5 V - the recommended maximum - degrades PSRR and increases thermal stress, potentially triggering premature thermal shutdown under load.

Can TLV70725PDQNR be used with non-ceramic output capacitors, and what design considerations apply?

Yes - TLV70725PDQNR is stable with any capacitor type (tantalum, polymer, etc.) as long as its effective capacitance under operating bias and temperature remains ≥0.1 µF. Designers must account for dielectric derating: e.g., a 1-µF X7R capacitor may drop to 0.3 µF at 2.5 V bias and 85°C, still satisfying the requirement.