Texas Instruments TLV713285PDBVT

Overview

TLV713285PDBVT from Texas Instruments is a capacitor-free, 150-mA low-dropout linear regulator with fixed 2.85-V output, 1% accuracy, 230 mV dropout at full load, 50 µA quiescent current, and active output discharge. It operates from 1.4 V to 5.5 V input and delivers stable power to ultra-low-power microcontrollers and RF modules in space-constrained portable devices.

For engineers reviewing the TLV713285PDBVT datasheet, TLV713285PDBVT pinout, TLV713285PDBVT application, or TLV713285PDBVT equivalent, key selection criteria include foldback current limiting for short-circuit robustness, capacitor-free stability enabling minimal BOM count, active pulldown for fast output discharge during shutdown, and X2SON-4 package compatibility with high-density PCB layouts.

Technical Context

The TLV713285PDBVT implements a PMOS pass transistor architecture enabling ultra-low dropout and inherent reverse-current blocking. Its internal foldback current limit reduces thermal stress during sustained overloads by lowering output current as voltage collapses - critical for battery-powered systems where fault energy must be minimized.

Unlike traditional LDOs, it achieves stability without mandatory output capacitance due to an integrated compensation network, while remaining compatible with optional ceramic capacitors up to 100 µF. The P-suffix variant adds an internal 120-Ω pulldown resistor on the OUT pin, ensuring rapid discharge of downstream capacitance when disabled.

Key Specifications

Pinout & Package

TLV713285PDBVT uses the 5-pin SOT-23 (DBV) package - 2.90 mm × 1.60 mm footprint with gull-wing leads - optimized for automated assembly and thermal performance via GND pad connection to PCB ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850B2L1HTSA1 and MCP1804T-285IDB, TLV713285PDBVT uniquely combines capacitor-free stability, foldback current limiting, and active output discharge in a 150-mA, 50-µA IQ package - making it optimal for compact, battery-sensitive portable electronics where reliability and minimal external components are prioritized.

Availability

TLV713285PDBVT is available at Aetrix Electronics and suitable for wearable health monitors, BLE sensor nodes, industrial handheld scanners, and portable medical diagnostic tools requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.

Supply support for TLV713285PDBVT 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 decades of expertise in power management ICs for portable, industrial, and automotive markets.

The TLV713 series was designed specifically for power-sensitive portable devices - emphasizing ultra-low IQ, capacitor-free operation, and robust fault handling to enable smaller, longer-lasting, and more reliable battery-powered systems.

FAQ

What is the dropout voltage specification for TLV713285PDBVT at 150 mA load and 25°C?

The TLV713285PDBVT has a typical dropout voltage of 230 mV at 150 mA output current and 25°C junction temperature. This value is confirmed in the Electrical Characteristics table under V_DO test conditions for V_OUT ≥ 3 V and I_OUT = 150 mA. At elevated temperatures up to 125°C, the maximum dropout rises to 540 mV, ensuring functional margin across full operating range.

Does TLV713285PDBVT require an output capacitor to maintain stability?

No, TLV713285PDBVT is explicitly designed for capacitor-free operation and remains stable with zero output capacitance. Its internal compensation eliminates the need for external C_OUT, reducing BOM count and PCB area. However, adding a 0.1–100 µF ceramic capacitor improves transient response and is supported per the datasheet's Recommended Operating Conditions.

What is the purpose of the NC pin on TLV713285PDBVT, and how should it be handled on the PCB?

The NC (No Connect) pin on TLV713285PDBVT (Pin 4 in DBV package) has no internal connection and must remain electrically floating. It should not be tied to GND, VIN, or any other net. PCB layout must avoid routing traces or placing vias or solder mask openings on this pad to prevent unintended coupling or assembly defects.

How does the foldback current limit function in TLV713285PDBVT during a short-circuit event?

In TLV713285PDBVT, the foldback current limit reduces output current as output voltage drops below regulation - e.g., during a short. At V_OUT ≈ 0 V, short-circuit current is limited to ~40 mA (per ISC spec), minimizing power dissipation and preventing thermal damage. This behavior is verified in Figure 16 and Figure 18 of the datasheet showing V_OUT vs. I_OUT collapse curves.

Is TLV713285PDBVT pin-compatible with other variants in the TLV713 family, such as TLV71318PDBVT or TLV71333PDBVT?

Yes, all TLV713xPDBVT variants share identical 5-pin SOT-23 (DBV) pinout and package dimensions. TLV713285PDBVT, TLV71318PDBVT, and TLV71333PDBVT differ only in fixed output voltage (2.85 V, 1.8 V, 3.3 V) and are fully interchangeable at the board level - enabling voltage-scaling flexibility without layout changes.