Texas Instruments TLV707285PDQNT

Overview

TLV707285PDQNT from Texas Instruments is a 200-mA, low-noise, low-quiescent-current (25 µA) LDO regulator with fixed 2.85 V output, optimized for portable RF and battery-powered systems. It delivers ±0.5% DC accuracy, supports 2.0–5.5 V input, achieves 70 dB PSRR at 100 Hz, and remains stable with only 0.1 µF output capacitance - enabling compact, cost-effective power designs in space-constrained wearables and handsets.

For engineers reviewing the TLV707285PDQNT datasheet, TLV707285PDQNT pinout, TLV707285PDQNT application, or TLV707285PDQNT equivalent, key selection criteria include dropout voltage at 150 mA (250 mV typical), active pulldown resistance (120 Ω), shutdown current (1 µA), thermal shutdown behavior, and compatibility with ceramic capacitors down to 0.1 µF under bias and temperature derating.

Technical Context

The TLV707285PDQNT integrates a PMOS pass transistor with internal current limiting and thermal shutdown, operating across –40°C to +125°C junction temperature. Its enable threshold (VIH = 0.9 V, VIL = 0.4 V) allows direct interfacing with low-voltage GPIOs of modern processors.

Unlike standard TLV707 variants, the "P" suffix denotes integrated active pulldown circuitry (120 Ω) that discharges the output during shutdown - critical for fast power-state transitions in multi-rail systems requiring controlled rail collapse without external components.

Key Specifications

Pinout & Package

TLV707285PDQNT 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 on one side; Pin 3 (EN) and Pin 4 (IN) on the opposite side. The thermal pad must be soldered to PCB ground for thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL7407LPGQDQNR and TPS7A0528PDQNR, TLV707285PDQNT uniquely combines 2.85 V precision, 120 Ω active pulldown, and 0.1 µF stability in a 1-mm² footprint - making it optimal for RF-bias and fast-sequencing portable applications where size, noise, and timing are co-constrained.

Availability

TLV707285PDQNT is available at Aetrix Electronics and suitable for smartphone RF modules, wearable biosensors, Bluetooth LE earbuds, and industrial handheld scanners requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV707285PDQNT 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, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.

The TLV707 series was designed specifically for portable, battery-powered devices demanding ultra-low quiescent current, high PSRR, and minimal board area - targeting RF front-ends, wearables, and IoT edge nodes.

FAQ

What is the output voltage tolerance of TLV707285PDQNT over temperature and load?

The TLV707285PDQNT maintains ±0.5% DC output accuracy over –40°C to +125°C junction temperature and 0–200 mA load. Load regulation is ≤20 mV from 0 to 150 mA, and line regulation is ≤5 mV across 2.0–5.5 V input - verified per TI's SBVS153G datasheet Section 6.5 Electrical Characteristics.

Does TLV707285PDQNT require an external pull-down resistor on the EN pin?

No. TLV707285PDQNT features an internal pull-down on the EN pin; no external resistor is required. The device enables when EN exceeds 0.9 V and shuts down when EN falls below 0.4 V. Floating EN defaults to shutdown state due to internal biasing - confirmed in Section 5 Pin Functions and Section 7.3.2 of the TLV707 datasheet.

Can TLV707285PDQNT operate with a 0.1-µF output capacitor, and what type is recommended?

Yes. TLV707285PDQNT is stable with ≥0.1 µF effective output capacitance - meaning the actual capacitance under operating bias and temperature must meet this value. X5R or X7R ceramic capacitors rated ≥0.1 µF (e.g., 0402 0.22 µF) are recommended; derating due to DC bias and temperature must be accounted for per manufacturer datasheets.

What is the purpose of the active pulldown circuit in TLV707285PDQNT?

The active pulldown circuit in TLV707285PDQNT is a 120 Ω internal resistor between OUT and GND activated during shutdown. It rapidly discharges the output node to prevent floating voltages, eliminate hold-up time, and ensure deterministic power sequencing - critical for multi-rail systems and compliance with Bluetooth or USB power-state timing requirements.

How does TLV707285PDQNT handle thermal overload conditions?

TLV707285PDQNT incorporates thermal shutdown protection that disables the output when junction temperature exceeds ~150°C. After cooling, the device automatically recovers and resumes regulation. This auto-recovery behavior, combined with foldback current limiting, prevents permanent damage during sustained overloads or poor PCB thermal design - detailed in Sections 7.3.1 and 6.4 Thermal Information of the datasheet.