Texas Instruments TLV75709PDRVR

Overview

TLV75709PDRVR from Texas Instruments is a 1A, low-quiescent-current (25μA typical), fixed 0.9V output LDO regulator in a 6-pin WSON package (DRV) with exposed thermal pad. It operates from 1.45V to 5.5V input, delivers ±1% output accuracy over –40°C to +125°C, and supports ultra-low-power portable systems requiring stable core voltage for microcontrollers and sensors.

For engineers reviewing the TLV75709PDRVR datasheet, TLV75709PDRVR pinout, TLV75709PDRVR application, or TLV75709PDRVR equivalent, this page provides verified package mapping (DRV/WSON-6), confirmed dropout performance (≤425mV at 1A/3.3VOUT), thermal metrics (RθJA = 100.2°C/W JEDEC), soft-start behavior, and active discharge functionality - all critical for battery-powered and thermally constrained designs.

Technical Context

The TLV75709PDRVR uses a PMOS pass transistor architecture enabling low dropout and high PSRR (46dB at 100kHz). Its internal bandgap reference and error amplifier deliver 1% output accuracy across temperature and load, while undervoltage lockout (1.21–1.44V threshold) prevents erratic startup under marginal input conditions.

Functional modes include normal regulation, dropout tracking, and active shutdown with internal 120Ω pulldown. Foldback current limiting reduces thermal stress during short-circuit events, and thermal shutdown (165°C trip, 155°C reset) enables self-recovery without external intervention.

Key Specifications

Pinout & Package

TLV75709PDRVR is housed in a 2mm × 2mm WSON-6 (DRV) package with an exposed thermal pad connected internally to GND. The compact footprint and low RθJA (100.2°C/W JEDEC) support high-density, thermally demanding applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV75709PDRVR, TPL7407LPGQ offers lower cost but reduced current and protection features, while TPS7A0509PDBVR trades output capability for smaller footprint - neither matches the 1A/0.9V/thermal-pad combination essential for high-integration embedded processors.

Availability

TLV75709PDRVR is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, automotive camera ECUs, and smart home hub processors requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for TLV75709PDRVR 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 over 90 years of innovation in power management, signal chain, and microcontroller technologies.

The TLV757P family was designed for ultra-small, low-IQ power delivery in space- and energy-constrained applications - specifically targeting battery-powered edge devices, wearables, and industrial sensors needing precise, efficient, and robust voltage regulation.

FAQ

What is the maximum input voltage rating for TLV75709PDRVR?

The absolute maximum input voltage for TLV75709PDRVR is 6.0V. However, the recommended operating range is 1.45V to 5.5V. Exceeding 5.5V may cause permanent damage or degrade long-term reliability, even if within the absolute maximum rating. Always maintain VIN ≤ 5.5V in normal operation to ensure compliance with the device's electrical characteristics and thermal specifications.

Does TLV75709PDRVR require an external pull-up on the EN pin?

No, TLV75709PDRVR does not require an external pull-up on the EN pin. It features an internal pull-down resistor (120Ω) that holds EN low during power-up, ensuring the device remains disabled until intentionally enabled. If continuous operation is desired, connect EN directly to IN; otherwise, drive EN with a clean logic signal meeting VHI ≥1V and VLO ≤0.3V thresholds.

Can TLV75709PDRVR operate stably with a 0.47µF output capacitor?

TLV75709PDRVR is specified to be stable with ≥1µF ceramic output capacitance. While 0.47µF meets the *minimum nominal* value cited in some sections, derating (e.g., 50% for DC bias) means effective capacitance may fall below 0.47µF at 0.9V - risking instability. For guaranteed stability across temperature and voltage, use ≥1µF X5R/X7R ceramic capacitors placed close to the OUT and GND pins.

What is the thermal resistance (RθJA) of TLV75709PDRVR in its DRV package?

The JEDEC-standard RθJA for TLV75709PDRVR in the 2mm × 2mm WSON-6 (DRV) package is 100.2°C/W. This value assumes a 2-layer PCB with 1oz copper, 2s2p construction, no thermal vias to internal planes, and bottom-layer copper only. Real-world performance improves significantly with thermal vias under the exposed pad and connection to a solid ground plane.

How does the foldback current limit behave in TLV75709PDRVR during a short circuit?

During a short circuit, TLV75709PDRVR initially limits output current to ~755mA (ISC). As VOUT collapses below 0.4×0.9V = 0.36V, the foldback mechanism reduces current further - scaling down toward zero as VOUT approaches GND. This reduces power dissipation [(VIN – VOUT) × IOUT] and delays thermal shutdown, improving fault tolerance compared to brick-wall limiting alone.