Texas Instruments TLV70518PYFPT

Overview

TLV70518PYFPT from Texas Instruments is a 1.8 V fixed-output, 200-mA low-dropout (LDO) linear regulator in a 0.77-mm × 0.77-mm DSBGA package, featuring 145 mV dropout at 200 mA, 0.5% output accuracy, and 35 μA quiescent current - designed for power-sensitive RF and portable applications such as Bluetooth® and Zigbee® transceivers.

For engineers reviewing the TLV70518PYFPT datasheet, TLV70518PYFPT pinout, TLV70518PYFPT application, or TLV70518PYFPT equivalent, key selection criteria include ultra-low profile packaging, stability with 0.1 μF ceramic output capacitance, high PSRR (70 dB at 1 kHz), thermal shutdown protection, and enable-controlled shutdown with 1 μA quiescent current in disabled state.

Technical Context

The TLV70518PYFPT uses a PMOS pass transistor to achieve low dropout and maintains regulation down to 2 V input while delivering 1.8 V output. Its internal bandgap reference and error amplifier deliver ±0.5% DC accuracy across –40°C to +125°C and full load range (0–200 mA).

It features active-high enable logic (EN > 0.9 V enables), undervoltage lockout (UVLO at 1.9 V), and integrated thermal shutdown (160°C trip). The device is stable with ≥0.1 μF effective ceramic output capacitance and achieves 100 μs start-up time with 1 μF COUT.

Key Specifications

Pinout & Package

TLV70518PYFPT is housed in a 4-pin, 0.77 mm × 0.77 mm, 0.15-mm max height DSBGA (YFP) package - optimized for space-constrained mobile and wearable PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL72018PDQNR and MCP1700T-1802E/TT, TLV70518PYFPT delivers superior dropout, lower IQ, and smaller footprint - making it optimal for space- and power-constrained wireless endpoints where 1.8-V rail integrity directly impacts RF link budget and battery longevity.

Availability

TLV70518PYFPT is available at Aetrix Electronics and suitable for Bluetooth® modules, Zigbee® sensor networks, and WLAN add-on cards requiring stable component supply, consistent parametric performance, and long-term production availability.

Supply support for TLV70518PYFPT 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, embedded processing, and connectivity technologies, with decades of LDO design expertise for portable and industrial applications.

The TLV705 series was developed specifically for ultra-low-power, space-constrained wireless devices - emphasizing minimal quiescent current, tiny packaging, and robust transient response in battery-fed RF subsystems.

FAQ

What is the minimum input voltage required for TLV70518PYFPT to regulate 1.8 V output?

The TLV70518PYFPT requires VIN ≥ 1.945 V to maintain regulation at 200 mA load (1.8 V + 145 mV dropout). Per datasheet Section 6.3, the recommended minimum VIN is 2.0 V across temperature and process variation - ensuring reliable operation with margin over absolute dropout.

Can TLV70518PYFPT operate with a 0.1 μF output capacitor?

Yes - TLV70518PYFPT is explicitly characterized and guaranteed stable with ≥0.1 μF effective ceramic output capacitance (Section 3, "Description"). This enables use of small 0402/0201 MLCCs with minimal voltage/temperature derating, reducing BOM cost and PCB area.

Does TLV70518PYFPT include thermal protection?

Yes - TLV70518PYFPT integrates thermal shutdown that activates at TJ = 160°C (rising) and resets at 140°C (falling) (Section 6.5, tSD parameter). This protects the device during sustained overload or poor PCB thermal dissipation, with automatic recovery upon cooling.

What is the enable pin behavior for TLV70518PYFPT?

The EN pin is active-high: TLV70518PYFPT enables when EN ≥ 0.9 V and enters 1 μA shutdown when EN ≤ 0.4 V (Section 6.5, VHI/VLO specs). No external pull-up is required; EN may be tied directly to VIN for always-on operation.

Is TLV70518PYFPT pin-compatible with other TLV705 variants?

Yes - all TLV705xYFPT parts (e.g., TLV70528PYFPT, TLV70533PYFPT) share identical 4-pin YFP DSBGA pinout (GND, EN, VIN, VOUT), allowing drop-in replacement across output voltages without layout change - provided input/output capacitor values meet each variant's stability requirements.