Texas Instruments TLV76718DGNR

Overview

TLV76718DGNR from Texas Instruments is a 1-A, 16-V input precision linear voltage regulator in an 8-pin HVSSOP package, delivering a fixed 1.8-V output with ±1% accuracy over load and temperature, 50 µA typical quiescent current, and stable operation with 1-µF ceramic output capacitors. It serves as a post-regulator for noise-sensitive microcontrollers and processors in space-constrained industrial and consumer power rails.

For engineers reviewing the TLV76718DGNR datasheet, TLV76718DGNR pinout, TLV76718DGNR application, or TLV76718DGNR equivalent, key selection criteria include dropout voltage (1.5 V max at 1 A), high PSRR (70 dB @ 1 kHz), thermal shutdown (180°C), enable logic thresholds (VEN(HIGH) = 1.2 V min), and compatibility with low-ESR ceramic capacitors down to 1 µF.

Technical Context

The TLV76718DGNR implements a CMOS-based LDO architecture with internal 0.8-V reference, foldback current limiting, and active pulldown during shutdown. Its enable pin features internal pullup (~400 nA) and supports floating-input startup, while the SNS pin enables remote output sensing for improved regulation at the load.

It operates across –40°C to +125°C junction temperature, supports UVLO (2.2–2.4 V rising threshold), and delivers high PSRR (>70 dB at 1 kHz, >46 dB at 1 MHz) to suppress switching noise from upstream DC/DC converters-critical for powering low-noise analog circuits and high-speed digital cores.

Key Specifications

Pinout & Package

TLV76718DGNR is housed in an 8-pin HVSSOP (DGN) package (3.0 mm × 3.0 mm, 0.65-mm pitch) with exposed thermal pad. The package supports high-power dissipation (R_θJA = 60.1°C/W) and requires PCB thermal relief via the exposed pad connected to a large ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F0TLE and TPS7A2018PDQNR, TLV76718DGNR uniquely combines 1-A output, 1.8-V fixed output, ±1% accuracy, and HVSSOP thermal performance - making it the only option among the three capable of powering high-current 1.8-V digital loads in industrial ambient conditions up to +125°C.

Availability

TLV76718DGNR is available at Aetrix Electronics and suitable for industrial motor drives, smart home hubs, and TV mainboards requiring stable component supply, long-term manufacturability, and guaranteed traceability.

Supply support for TLV76718DGNR 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 expertise in power management IC design and manufacturing.

The TLV767 family was engineered for high-current, low-quiescent-power linear regulation in space- and thermally constrained applications - targeting industrial automation, consumer electronics, and infrastructure equipment needing precision, reliability, and simplified design-in.

FAQ

What is the maximum input voltage rating for TLV76718DGNR?

The absolute maximum input voltage for TLV76718DGNR is 18 V, but the recommended operating range is 2.5 V to 16 V. Exceeding 16 V continuously may impact long-term reliability and thermal performance, especially at high ambient temperatures. The device includes undervoltage lockout (UVLO) that disables operation below 2.2 V (rising threshold), ensuring clean startup behavior. Always refer to Section 6.1 of the official TLV76718DGNR datasheet for stress ratings and derating guidance.

Does TLV76718DGNR require an external feedback resistor network?

No, TLV76718DGNR does not require external feedback resistors because it is a fixed-output variant configured for 1.8 V. Pin 2 (FB) is unused and must be left unconnected - unlike adjustable TLV767 versions that use FB with resistor dividers. This simplifies layout and reduces BOM count. The internal feedback network is factory-trimmed to deliver ±1% accuracy across temperature and load, eliminating need for external calibration or trimming components in the TLV76718DGNR design.

How does the enable pin (EN) behave when left floating on TLV76718DGNR?

When the EN pin is left floating on TLV76718DGNR, the internal ~400-nA pullup current pulls it above the 1.2-V logic-high threshold, enabling the regulator automatically. This allows simple "always-on" operation without external pullup resistors. However, in noisy environments, a weak external pullup (e.g., 100-kΩ to VIN) is recommended to prevent false disabling. The EN pin also activates internal output pulldown (1.2 mA typical) when pulled low, actively discharging the output capacitor during shutdown - a feature confirmed in TLV76718DGNR's Electrical Characteristics table.

Can TLV76718DGNR operate with a 1-µF ceramic output capacitor?

Yes, TLV76718DGNR is explicitly characterized and guaranteed stable with a minimum 1-µF ceramic output capacitor (X5R/X7R, ESR ≤ 500 mΩ). This is verified across temperature and load in TI's SLVSE84D datasheet (Section 6.3 and Figure 7-29). Using 1 µF eliminates need for larger, higher-ESR tantalum or aluminum electrolytic capacitors - reducing footprint, cost, and aging-related drift. For optimal transient response under 1-A step loads, TI recommends 22 µF (as shown in Figure 7-33), but 1 µF remains sufficient for basic regulation stability.

What thermal performance can be expected from TLV76718DGNR in its HVSSOP package?

TLV76718DGNR in the 8-pin HVSSOP (DGN) package has a junction-to-ambient thermal resistance (R_θJA) of 60.1°C/W with standard JEDEC 2S2P layout, and 32.8°C/W junction-to-board (R_θJB). With proper PCB design - including soldering the exposed thermal pad to a ≥100-mm² internal or external ground plane - it sustains 1-A continuous output at +85°C ambient without thermal shutdown. Derating is required above +85°C; full 1-A operation is validated up to +125°C junction temperature per datasheet Section 6.4.