Texas Instruments TLV70518PYFPR

Overview

TLV70518PYFPR from Texas Instruments is a 1.8-V fixed-output, 200-mA low-dropout (LDO) linear regulator in a 4-pin 0.77-mm × 0.77-mm DSBGA package. It delivers 0.5% output accuracy, 35-μA quiescent current, and 145-mV dropout at 200 mA - optimized for powering RF-sensitive subsystems in space-constrained portable electronics.

For engineers reviewing the TLV70518PYFPR datasheet, TLV70518PYFPR pinout, TLV70518PYFPR application, or TLV70518PYFPR equivalent, key selection criteria include ultra-low profile packaging (0.15-mm max height), stability with only 0.1-μF ceramic output capacitance, high PSRR (70 dB @ 1 kHz), and enable-controlled shutdown with 1-μA quiescent current in disabled state.

Technical Context

The TLV70518PYFPR uses a PMOS pass transistor architecture enabling low dropout and fast line/load transient response. Its internal bandgap reference and error amplifier deliver 0.5% typical DC accuracy across –40°C to +125°C and 0–200 mA load range.

It integrates undervoltage lockout (1.9 V), thermal shutdown (160°C trip), and overcurrent protection. The EN pin supports active-high logic control with 0.9-V turn-on threshold - compatible with low-voltage GPIOs - and enables full system power sequencing in battery-powered designs.

Key Specifications

Pinout & Package

TLV70518PYFPR is housed in a 4-pin, 0.77-mm × 0.77-mm, 0.15-mm maximum height DSBGA (YFP) package - optimized for ultra-thin mobile and wearable PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL720F18PDSQR and MCP1700T-1802E/TT, TLV70518PYFPR uniquely combines ultra-low profile packaging, 0.5% accuracy across full temperature/load range, and integrated enable with sub-1-μA shutdown - making it optimal for next-generation miniaturized, battery-sensitive electronics.

Availability

TLV70518PYFPR is available at Aetrix Electronics and suitable for wireless handsets, wearable health monitors, and Wi-Fi IoT modules requiring stable component supply, long-lifecycle availability, and traceable sourcing.

Supply support for TLV70518PYFPR 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 deep expertise in power management ICs and high-reliability design.

The TLV705 series was developed specifically for ultra-low-power, space-constrained portable electronics - emphasizing minimal quiescent current, miniature packaging, and robust performance under dynamic load and thermal conditions.

FAQ

What is the minimum input voltage required for TLV70518PYFPR to regulate 1.8 V at 200 mA?

The TLV70518PYFPR requires a minimum input voltage of 1.945 V to maintain regulation at 200 mA, based on its specified 145-mV dropout voltage (V_DO = 145 mV). This allows operation well into the discharge curve of single-cell Li-ion batteries, supporting extended runtime in portable devices without compromising output stability.

Does TLV70518PYFPR require an external pull-up resistor on the EN pin?

No, TLV70518PYFPR does not require an external pull-up resistor on the EN pin. Its enable threshold is 0.9 V (min) for activation and 0.4 V (max) for shutdown, and the EN pin draws only 0.01 μA. It can be driven directly from a microcontroller GPIO or tied to VIN for always-on operation - eliminating external components and saving board space.

Can TLV70518PYFPR operate with a 0.1-μF ceramic output capacitor?

Yes, TLV70518PYFPR is explicitly designed to be stable with an effective output capacitance as low as 0.1 μF - a key differentiator versus legacy LDOs. This enables use of small, low-cost, bias-stable X5R/X7R MLCCs and eliminates derating concerns due to DC bias or temperature drift, simplifying design and reducing BOM cost.

What protection features are integrated into TLV70518PYFPR?

TLV70518PYFPR integrates thermal shutdown (trip at 160°C, reset at 140°C), output current limiting (260–550 mA typical), and undervoltage lockout (UVLO at 1.9 V). These functions operate autonomously without external components, safeguarding both the regulator and downstream circuitry during fault conditions such as short circuits, overtemperature, or brownout events.

Is TLV70518PYFPR pin-compatible with other variants in the TLV705 family?

Yes, TLV70518PYFPR shares identical 4-pin DSBGA (YFP) pinout and footprint with all TLV705x and TLV705Px variants in the same package option - including TLV70525PYFPR (2.5 V) and TLV70533PYFPR (3.3 V). This enables voltage-scaling flexibility and design reuse across product families without PCB redesign.