Texas Instruments TLV75715PDRVR

Overview

TLV75715PDRVR from Texas Instruments is a 1A, low-quiescent-current (25μA typical), fixed 1.5V output LDO regulator in a 2mm × 2mm WSON-6 (DRV) package with exposed thermal pad. It operates from 1.45V to 5.5V input, delivers ≤1% output accuracy, supports 1µF ceramic output capacitance, and features active output discharge and built-in soft-start - optimized for powering MCU core rails in space-constrained portable electronics.

For engineers reviewing the TLV75715PDRVR datasheet, TLV75715PDRVR pinout, TLV75715PDRVR application, or TLV75715PDRVR equivalent, key selection criteria include dropout voltage at 1A (max 425mV @ 3.3VOUT), thermal resistance (RθJA = N/A for DRV per EVM data), foldback current limit behavior, EN pin logic thresholds (VHI = 1V, VLO = 0.3V), and compatibility with low-ESR ceramic capacitors down to 1µF.

Technical Context

The TLV75715PDRVR uses a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR (46dB @ 100kHz). Its internal bandgap reference and error amplifier deliver ±1% output accuracy across –40°C to +125°C, while the integrated soft-start circuit controls inrush current during power-up and ensures monotonic VOUT rise.

Functional safety features include undervoltage lockout (UVLO rising threshold 1.21–1.44V), thermal shutdown (trip at 165°C, reset at 155°C), and foldback current limiting that reduces output current as VOUT collapses below 0.4×VOUT(NOM), minimizing thermal stress during short-circuit events.

Key Specifications

Pinout & Package

TLV75715PDRVR is packaged in a 2mm × 2mm WSON-6 (DRV) with an exposed thermal pad connected internally to GND. The package requires soldering the thermal pad to a large-area ground plane for optimal thermal performance (RθJB = 64.3°C/W per JEDEC standard PCB).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F0TESK and TPS7A0515PDQNR, TLV75715PDRVR uniquely combines 1A output, 1.5V fixed regulation, EN control, and 2mm × 2mm WSON packaging - making it the only option among the three capable of directly powering modern 1.5V-core MCUs in space- and power-constrained designs.

Availability

TLV75715PDRVR is available at Aetrix Electronics and suitable for portable medical devices, camera modules, white goods control panels, and grid infrastructure relays requiring stable component supply with consistent parametric performance and long-term manufacturability.

Supply support for TLV75715PDRVR 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 specializing in analog and embedded processing technologies, with decades of LDO design expertise and broad automotive, industrial, and consumer qualification coverage.

The TLV757P family was engineered for ultra-small, high-efficiency power delivery in battery-powered and thermally constrained systems - targeting next-generation MCU, sensor, and imaging applications demanding low IQ, fast transient response, and minimal solution size.

FAQ

What is the maximum input voltage rating for TLV75715PDRVR?

The absolute maximum input voltage for TLV75715PDRVR is 6.0V, but the recommended operating range is 1.45V to 5.5V. Exceeding 5.5V may trigger internal protection circuits or degrade reliability. Operation at 6.0V is only permissible under transient conditions per absolute maximum ratings - sustained use above 5.5V is not advised. Always maintain VIN within 1.45V–5.5V for guaranteed regulation and lifetime performance of TLV75715PDRVR.

Does TLV75715PDRVR require an input capacitor, and what value is recommended?

Yes, TLV75715PDRVR requires a minimum 1µF ceramic input capacitor connected between IN and GND, placed as close as possible to the device pins. This capacitor stabilizes the input supply, suppresses high-frequency noise, and limits inrush current during enable transitions. X5R or X7R dielectrics are preferred for stable capacitance across temperature and bias. Using less than 1µF risks instability or degraded transient response in TLV75715PDRVR applications.

How does the foldback current limit behave in TLV75715PDRVR during a short-circuit event?

In TLV75715PDRVR, the foldback current limit reduces output current as VOUT falls below 0.4×1.5V (i.e., <0.6V). At full short (VOUT ≈ 0V), typical short-circuit current is 755mA - significantly lower than the 1A nominal rating. This foldback action lowers power dissipation [(VIN – VOUT) × ISC] in the PMOS pass element, delaying thermal shutdown and improving fault survivability. The behavior is confirmed in Figure 5-27 of the TLV757P datasheet.

Can TLV75715PDRVR be used without connecting the thermal pad?

No - the thermal pad of TLV75715PDRVR (DRV package) is internally connected to GND and must be soldered to a large copper pour or thermal plane on the PCB. Omitting this connection degrades thermal resistance (RθJB increases from 64.3°C/W to >100°C/W), raises junction temperature under load, and risks premature thermal shutdown or long-term reliability failure. TI's layout guidelines explicitly require thermal pad connection for all DRV-package TLV757P variants including TLV75715PDRVR.

What is the purpose of the two NC pins on TLV75715PDRVR, and how should they be handled?

TLV75715PDRVR has two NC (no-connect) pins - Pin 2 and Pin 5 - which are not internally bonded and serve no electrical function. They may be left unconnected or tied to GND for mechanical stability and improved thermal conduction, but must never be connected to IN, OUT, or EN. Routing traces to NC pins is unnecessary and risks accidental shorts; TI's recommended layout shows them as unconnected or optionally grounded. This applies strictly to TLV75715PDRVR and differs from other DRV-package LDOs with functional pins in those positions.