Texas Instruments TLV71133285DDSER

Overview

TLV71133285DDSER from Texas Instruments is a dual-channel, 200mA low-dropout linear regulator IC with fixed 3.3V and 2.85V outputs, 150mV dropout at 200mA (VOUT=2.85V), ±2% output accuracy over –40°C to +125°C, and 35µA quiescent current per channel - designed for power-sensitive portable devices including smartphones and handheld audio players.

For engineers reviewing the TLV71133285DDSER datasheet, TLV71133285DDSER pinout, TLV71133285DDSER application, or TLV71133285DDSER equivalent, key selection criteria include independent enable control per channel, active pulldown on both EN pins (D-series), stable operation with 0.1µF ceramic output capacitance, and SON-6 package thermal performance (6°C/W junction-to-top).

Technical Context

The TLV71133285DDSER integrates two independent PMOS-based LDO regulators sharing a common input and ground, each with dedicated VREF and enable logic. Its D-series variant includes internal pull-down resistors on EN1 and EN2 pins to ensure reliable shutdown during indeterminate GPIO states.

Each regulator features over-current and thermal shutdown protection, and supports stable operation with effective output capacitance ≥0.1µF. The device achieves 70dB PSRR at 1kHz and 48µVRMS output noise (BW = 100Hz–100kHz) at 1.8V output - parameters confirmed for the TLV711 family and applicable to this specific fixed-output variant.

Key Specifications

Pinout & Package

TLV71133285DDSER is housed in a 1.5mm × 1.5mm SON-6 package with wettable flanks, optimized for automated optical inspection (AOI) and thermal performance (6°C/W junction-to-top).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL7407LADGQR and TPS70933DRVR, TLV71133285DDSER uniquely delivers matched dual fixed outputs (3.3V/2.85V), independent enable control, and SON-6 footprint in a single device - reducing component count by 2× versus dual-single solutions and avoiding functional compromises of driver-integrated alternatives.

Availability

TLV71133285DDSER is available at Aetrix Electronics and suitable for smartphone baseband power, portable audio codec supply, wearable sensor hubs, and industrial handheld terminals requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV71133285DDSER 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 specializing in analog and embedded processing technologies, with leadership in power management ICs for portable and industrial applications.

The TLV711 series is designed specifically for dual-rail, low-quiescent-current power management in space-constrained portable electronics - emphasizing dropout voltage, output accuracy, and enable flexibility over raw current capability.

FAQ

What are the exact output voltages of TLV71133285DDSER?

The TLV71133285DDSER provides two fixed, factory-programmed output voltages: 3.3V on OUT1 (Pin 6) and 2.85V on OUT2 (Pin 5). These values are confirmed in TI's SBVS142A datasheet for the TLV711-D series and are encoded in the part number suffix "33285" - where "33" denotes 3.3V and "285" denotes 2.85V. No external resistors or configuration is required.

Does TLV71133285DDSER require external pull-down resistors on EN1 and EN2?

No, TLV71133285DDSER does not require external pull-down resistors on EN1 or EN2. As a TLV711-D series device, it integrates internal 6kΩ pull-down resistors on both enable pins to ensure reliable shutdown when control signals are floating or three-stated - a key differentiator from non-D variants like TLV710.

What is the minimum output capacitance required for stability with TLV71133285DDSER?

The TLV71133285DDSER is stable with an effective output capacitance of 0.1µF or greater, as verified in the Electrical Characteristics table and Application Information section of the SBVS142A datasheet. This applies to both OUT1 and OUT2 and enables use of small-footprint X5R/X7R ceramic capacitors - unlike legacy LDOs requiring ≥1µF.

How does the thermal performance of TLV71133285DDSER compare to larger-package LDOs?

TLV71133285DDSER uses a 1.5mm × 1.5mm SON-6 package with a junction-to-top thermal resistance (yJT) of 6°C/W, enabling efficient heat transfer to the PCB copper. At 200mA per channel and 150mV dropout, power dissipation is ~30mW per regulator - allowing full-rated operation at +70°C ambient without heatsink, outperforming many SOT-23 equivalents in thermal density.

Can TLV71133285DDSER be used in automotive applications?

The TLV71133285DDSER is specified for operation from –40°C to +125°C junction temperature and includes thermal shutdown at +165°C, but it is not AEC-Q100 qualified. It may be used in non-safety-critical automotive infotainment or telematics subsystems where qualification is not mandated, provided system-level validation confirms robustness under vibration, ESD, and extended temperature cycling.