Texas Instruments TLV705165YFPT

Overview

TLV705165YFPT from Texas Instruments is a 1.65-V fixed-output, 200-mA low-dropout linear regulator in a 0.77-mm × 0.77-mm DSBGA package. It delivers 0.5% output accuracy, 35-μA quiescent current, 145-mV dropout at 200 mA, and 70-dB PSRR at 1 kHz-designed for powering RF-sensitive circuits in space-constrained portable devices such as Bluetooth headsets and Zigbee sensor nodes.

For engineers reviewing the TLV705165YFPT datasheet, TLV705165YFPT pinout, TLV705165YFPT application, or TLV705165YFPT equivalent, key selection criteria include ultra-low profile packaging (0.15-mm max height), stability with only 0.1-μF ceramic output capacitance, enable-pin logic thresholds (0.9 V high / 0.4 V low), thermal shutdown at 160°C, and compatibility with Li-ion input rails (2 V to 5.5 V).

Technical Context

The TLV705165YFPT uses a PMOS pass transistor architecture enabling low dropout and high PSRR with minimal VIN–VOUT headroom. Its error amplifier achieves 0.5% DC accuracy across –40°C to +125°C and supports zero-load regulation.

It integrates undervoltage lockout (1.9 V), active-high enable with 0.01-μA EN pin current, and internal thermal shutdown (160°C trip, 140°C reset). The device operates stably with ≥0.1 μF effective ceramic output capacitance and requires no external compensation.

Key Specifications

Pinout & Package

TLV705165YFPT is housed in a 4-pin, 0.77-mm × 0.77-mm, 0.15-mm maximum height DSBGA (YFPT) package-optimized for ultra-thin mobile and wearable applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F2BHTSA1 and AP7361D-165YG-13, the TLV705165YFPT uniquely balances ultra-miniature DSBGA packaging, precision enable logic, and RF-grade noise/PSRR performance-making it optimal for height-limited portable designs where 200-mA capability suffices.

Availability

TLV705165YFPT is available at Aetrix Electronics and suitable for wireless handsets, Zigbee sensor nodes, and wearable display modules requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV705165YFPT 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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and power management technologies.

The TLV705 series was developed to address power integrity challenges in battery-powered RF and portable electronics-emphasizing ultra-low profile packaging, low noise, and minimal external component count.

FAQ

What is the minimum input voltage required for TLV705165YFPT to regulate 1.65 V at 200 mA?

The TLV705165YFPT requires a minimum input voltage of 1.795 V to maintain regulation at 200 mA, calculated as V_OUT + V_DO = 1.65 V + 145 mV. Below this, the device enters dropout mode with reduced PSRR and transient response. This headroom allows operation across the full discharge curve of a single-cell Li-ion battery.

Can TLV705165YFPT operate without an enable signal connected?

Yes, TLV705165YFPT can operate without an external enable signal by connecting the EN pin directly to VIN. This configures the device for always-on operation, drawing 35 μA quiescent current under no load. The EN pin has only 0.01 μA leakage, so floating EN is not recommended-it may cause unpredictable startup behavior.

What output capacitor value is required for stable operation of TLV705165YFPT?

TLV705165YFPT is stable with a minimum effective output capacitance of 0.1 μF ceramic. A 1-μF X5R/X7R ceramic capacitor is recommended for optimal transient response and noise filtering. Larger values improve load step recovery but do not affect stability-no ESR requirements or tantalum alternatives are needed.

Does TLV705165YFPT include reverse-voltage protection?

No, TLV705165YFPT does not include reverse-voltage protection. Its PMOS pass transistor contains an intrinsic body diode that conducts if VOUT exceeds VIN. TI recommends external limiting (e.g., series Schottky diode) if reverse voltage >5% of rated output current is possible, to prevent uncontrolled current flow and potential damage.

How does TLV705165YFPT handle thermal overload conditions?

TLV705165YFPT features thermal shutdown with a 160°C trip point and 140°C hysteresis. When junction temperature exceeds 160°C, the device disables output and reduces ground current to 1 μA. After cooling below 140°C, it automatically resumes regulation. This auto-recovery behavior prevents permanent damage during sustained overload or poor PCB thermal design.