Texas Instruments TLV70515YFPR

Overview

TLV70515YFPR from Texas Instruments is a 1.5-V fixed-output, 200-mA low-dropout (LDO) linear regulator in a 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 Li-ion–powered handheld devices requiring stable, low-noise biasing of RF and digital circuitry.

For engineers reviewing the TLV70515YFPR datasheet, TLV70515YFPR pinout, TLV70515YFPR application, or TLV70515YFPR equivalent, key selection considerations include ultra-low profile packaging (0.15-mm max height), 0.1-μF minimum stable output capacitance, high PSRR (70 dB @ 1 kHz), thermal shutdown, and enable-controlled sequencing in space-constrained portable systems.

Technical Context

The TLV70515YFPR uses a PMOS pass transistor to achieve low dropout and maintain regulation down to (VIN – VOUT) = 145 mV at full load. Its error amplifier provides 0.5% DC accuracy over –40°C to +125°C and supports zero-load regulation.

It features an active-high enable pin with 0.9-V turn-on threshold and 0.4-V shutdown threshold, enabling direct interfacing with low-voltage GPIOs. Internal UVLO (1.9 V) and thermal shutdown (160°C) ensure robust operation under fault conditions.

Key Specifications

Pinout & Package

TLV70515YFPR is housed in a 4-pin, 0.77-mm × 0.77-mm DSBGA (YFP) package with 0.15-mm maximum height - ideal for ultra-thin mobile and wearable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F1EJXUMA1 and AP7361D-15YG-13, TLV70515YFPR offers the smallest footprint and lowest quiescent current among 1.5-V LDOs, making it uniquely suited for ultra-compact, battery-optimized designs where every micron and microamp matters.

Availability

TLV70515YFPR is available at Aetrix Electronics and suitable for wireless handsets, Bluetooth® devices, and Zigbee® networks requiring stable component supply across high-mix, low-volume production runs and rapid prototyping cycles.

Supply support for TLV70515YFPR 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 focused on analog and embedded processing technologies, serving industrial, automotive, and personal electronics markets with high-reliability, application-optimized components.

The TLV705 series was designed specifically for battery-powered portable electronics - emphasizing ultra-low IQ, miniature packaging, and high PSRR to extend runtime and simplify power architecture in smartphones, wearables, and IoT edge nodes.

FAQ

What is the minimum input voltage required for TLV70515YFPR to regulate 1.5 V?

The TLV70515YFPR requires VIN ≥ VOUT + VDO. With a typical dropout of 145 mV at 200 mA, the minimum functional input is 1.645 V. However, the recommended operating range starts at 2 V per datasheet specifications to ensure guaranteed performance across temperature and process variation. Below 2 V, regulation may degrade or cease depending on load and junction temperature.

Can TLV70515YFPR operate without an output capacitor?

No - TLV70515YFPR requires a minimum effective output capacitance of 0.1 μF (ceramic) from VOUT to GND for stability. Omitting this capacitor causes oscillation and unregulated output. The device is optimized for low-ESR ceramics; tantalum or aluminum electrolytics are not recommended due to ESR and bias voltage derating effects.

Does TLV70515YFPR include reverse-voltage protection?

TLV70515YFPR does not include reverse-voltage protection. Its internal PMOS pass transistor has a body diode that conducts from VOUT to VIN if VOUT exceeds VIN. This uncontrolled conduction can damage upstream sources or cause system-level latch-up. TI recommends adding an external Schottky diode or dedicated reverse-protection IC if reverse voltage exposure is possible.

How does the enable pin (EN) behave during power-up?

The EN pin of TLV70515YFPR is active-high with a 0.9-V threshold. When VIN rises first, EN must reach 0.9 V before regulation begins - ensuring controlled sequencing. If EN is tied to VIN, the device powers up immediately after VIN crosses 0.9 V. For delayed startup, a resistor-divider or RC network can be used to delay EN assertion relative to VIN.

Is TLV70515YFPR compatible with 1.2-V GPIOs?

Yes - TLV70515YFPR's EN pin turns on at 0.9 V (min), making it directly compatible with 1.2-V GPIO outputs without level-shifting. At 1.2 V, EN is well above the 0.9-V threshold, ensuring reliable activation. Leakage into EN is only 0.01 μA, minimizing loading on weak GPIO drivers.