Texas Instruments TLV713285PDBVR

Overview

TLV713285PDBVR from Texas Instruments is a capacitor-free, 150-mA, low-dropout linear regulator with fixed 2.85-V output, active output discharge, foldback current limiting, and 230 mV dropout at full load. It operates from 1.4 V to 5.5 V input and delivers ±1% output accuracy over –40°C to 125°C, serving as a stable power source for portable battery-powered systems requiring minimal BOM count and fast output discharge.

For engineers reviewing the TLV713285PDBVR datasheet, TLV713285PDBVR pinout, TLV713285PDBVR application, or TLV713285PDBVR equivalent, key selection criteria include its capacitor-free stability, active pulldown capability (P-version), 50 µA quiescent current, 65 dB PSRR at 1 kHz, and X2SON-4 package compatibility with space-constrained handheld designs.

Technical Context

The TLV713285PDBVR implements a PMOS pass transistor architecture enabling ultra-low dropout and inherent capacitor-free stability across all load conditions. Its internal foldback current limit reduces output current during overload to minimize thermal stress and maintain safe operation without external protection circuitry.

It integrates an enable input with precise 0.9 V turn-on and 0.4 V shutdown thresholds, plus an active pulldown resistor (120 Ω typical) on the OUT pin when disabled-ensuring rapid discharge of downstream capacitance. This behavior is exclusive to the 'P' variant and critical for sequencing-sensitive applications.

Key Specifications

Pinout & Package

TLV713285PDBVR is housed in a 1.0 mm × 1.0 mm, 4-pin X2SON (DQN) package with wettable flanks, optimized for automated optical inspection and high-density PCB layouts. The thermal pad is internally connected to GND and must be soldered to the PCB ground plane for thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F28T, TLV713285PDBVR offers capacitor-free operation and active discharge in a smaller thermal profile but lacks automotive qualification. Against TPS7A05285PDBVR, it trades 25 µA lower IQ for guaranteed discharge functionality and relaxed output capacitor requirements - making it preferable in sequencing-critical portable systems.

Availability

TLV713285PDBVR is available at Aetrix Electronics and suitable for wearable health monitors, Bluetooth LE sensor nodes, portable medical diagnostics, USB-C powered tools, and other battery-operated embedded systems requiring stable component supply, long-lifecycle support, and consistent parametric performance.

Supply support for TLV713285PDBVR 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 digital signal technologies, with decades of expertise in power management ICs for portable and industrial applications.

The TLV713 series was designed specifically for capacitor-free, low-quiescent-current LDO regulation in space- and power-constrained portable electronics - emphasizing simplicity, reliability, and minimal external components.

FAQ

Does TLV713285PDBVR require an output capacitor to remain stable?

No, TLV713285PDBVR is explicitly designed for stable operation with zero output capacitance - a core feature confirmed in TI's SBVS195F datasheet Section 3. This eliminates BOM cost and board area associated with output caps while maintaining phase margin across all loads and temperatures. An optional 1-µF ceramic capacitor may be added to improve transient response, but it is not required for stability.

What is the purpose of the 'P' suffix in TLV713285PDBVR?

The 'P' suffix denotes the active output discharge variant of the TLV713 family. TLV713285PDBVR integrates a 120 Ω pulldown resistor between OUT and GND when the device is disabled (EN < 0.4 V), ensuring rapid discharge of output capacitance. This functionality is absent in non-P versions and is essential for power sequencing in multi-rail systems to prevent back-powering or undefined logic states.

What is the maximum input voltage rating for TLV713285PDBVR?

The absolute maximum input voltage for TLV713285PDBVR is 6 V, per Section 6.1 of the SBVS195F datasheet. However, the recommended operating range is 1.4 V to 5.5 V. Exceeding 5.5 V risks permanent damage even briefly, and operation above 6 V violates absolute maximum ratings - design margins should maintain VIN ≤ 5.5 V under all conditions including transients.

How does the foldback current limit behave in TLV713285PDBVR during a short circuit?

Under short-circuit conditions (V_OUT ≈ 0 V), TLV713285PDBVR limits output current to approximately 40 mA - significantly lower than its 150 mA rated output. This foldback behavior reduces power dissipation and junction temperature rise, allowing indefinite short-circuit operation without thermal shutdown or device failure, as verified in Section 6.5 Electrical Characteristics (ISC parameter).

Can TLV713285PDBVR be used with a 1.8-V input supply?

No - TLV713285PDBVR requires a minimum input voltage of 1.4 V, but its 2.85-V output necessitates sufficient headroom. With a 230 mV dropout at 150 mA, the minimum functional input is 3.08 V. A 1.8-V input is 1.25 V below the required level and will result in complete dropout and loss of regulation; it cannot sustain 2.85 V output under any load condition.