Texas Instruments TLV713285PDQNR

Overview

TLV713285PDQNR 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 150 mA, 50 µA quiescent current, and foldback overcurrent protection - designed for power-sensitive portable devices requiring stable low-voltage rail generation.

For engineers reviewing the TLV713285PDQNR datasheet, TLV713285PDQNR pinout, TLV713285PDQNR application, or TLV713285PDQNR equivalent, key selection criteria include capacitor-free stability, thermal shutdown at 158°C, active output discharge (enabled in P-version), EN logic compatibility (0.4 V low / 0.9 V high), and X2SON-4 package suitability for space-constrained battery-powered designs.

Technical Context

The TLV713285PDQNR implements a PMOS pass transistor architecture enabling ultra-low dropout and inherent capacitor-free stability across load and temperature. Its foldback current limit reduces power dissipation during overload by lowering output current as voltage collapses - critical for battery safety in handheld devices.

It integrates undervoltage lockout (UVLO), inrush current control during enable transitions, and an active pulldown circuit (P-version only) that discharges the output when disabled - eliminating external discharge resistors and ensuring fast, controlled power-down sequencing in multi-rail systems.

Key Specifications

Pinout & Package

TLV713285PDQNR uses the 1.00 mm × 1.00 mm, 4-pin X2SON (DQN) package with exposed thermal pad electrically tied to GND. The compact footprint supports high-density layouts in portable electronics.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F0TESK and MCP1700T-2802E/OT, TLV713285PDQNR uniquely combines capacitor-free stability, active output discharge, and foldback current limiting in a 1-mm² package - making it optimal for space- and safety-constrained portable electronics where board area and battery protection are primary concerns.

Availability

TLV713285PDQNR is available at Aetrix Electronics and suitable for wearable health monitors, Bluetooth LE sensor nodes, industrial handheld scanners, and smart home motion detectors requiring stable component supply with consistent parametric performance across temperature and production lots.

Supply support for TLV713285PDQNR 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, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TLV713 series was developed specifically for portable, battery-powered devices needing ultra-small, capacitor-free LDOs with robust protection - targeting PDAs, MP3 players, WLAN cards, and modern wearables where size, efficiency, and reliability are critical.

FAQ

What is the maximum input voltage rating for TLV713285PDQNR?

The absolute maximum input voltage for TLV713285PDQNR is 6 V, but the recommended operating range is 1.4 V to 5.5 V. Exceeding 6 V risks permanent damage per Absolute Maximum Ratings. For reliable long-term operation, maintain VIN ≤ 5.5 V - especially important when used with 5-V USB sources or unregulated battery inputs.

Does TLV713285PDQNR require an output capacitor to remain stable?

No, TLV713285PDQNR is explicitly designed for stable operation with or without an output capacitor. This capacitor-free capability is verified across all operating conditions in the datasheet. Adding a 0.1–100 µF ceramic capacitor improves transient response but is never required for stability - a key differentiator from most traditional LDOs.

What is the purpose of the active output discharge feature in TLV713285PDQNR?

The active output discharge in TLV713285PDQNR uses an internal 120-Ω pulldown resistor to rapidly discharge the output node when the EN pin is driven low. This prevents floating voltages or slow decay that could cause latch-up or undefined states in downstream logic - essential for clean power sequencing in multi-rail systems using TLV713285PDQNR.

How does the foldback current limit function in TLV713285PDQNR during overload?

In TLV713285PDQNR, the foldback current limit reduces output current as output voltage drops under overload - e.g., from 180 mA at nominal VOUT to ~40 mA at short-circuit. This limits power dissipation (I²R heating) in the pass device, preventing thermal runaway and enabling safe, sustained operation during fault conditions without external current-limiting components.

Can TLV713285PDQNR be used with a 1.8-V input supply?

No - TLV713285PDQNR requires a minimum input voltage of 1.4 V, but to regulate 2.85 V output, VIN must exceed VOUT + V_DO. At 150 mA, V_DO is 230 mV, so minimum functional VIN is 3.08 V. A 1.8-V input is insufficient and will result in dropout - use only with VIN ≥ 3.1 V for full-load 2.85-V regulation.