Texas Instruments TLV71211DSER

Overview

TLV71211DSER from Texas Instruments is a 300-mA, sub-bandgap low-dropout linear regulator (LDO) with fixed 1.1 V output voltage, 2% DC accuracy, 35 µA quiescent current, and stability with ≥0.1 µF ceramic output capacitance. It delivers high PSRR (68 dB at 1 kHz) and operates across –40°C to +125°C for powering ultra-low-voltage processor cores in battery-constrained wireless handsets.

For engineers reviewing the TLV71211DSER datasheet, TLV71211DSER pinout, TLV71211DSER application, or TLV71211DSER equivalent, key selection criteria include its 1.1 V fixed output, SON-6 package thermal performance (R_θJA = 180°C/W), active-high enable threshold (0.9 V), and guaranteed operation down to 2.0 V input - critical for Li-ion–powered portable RF systems.

Technical Context

The TLV71211DSER uses a PMOS pass transistor to achieve sub-bandgap regulation at 1.1 V while maintaining low dropout under load. Its precision bandgap reference and error amplifier deliver ±2% output accuracy over temperature and line/load variation.

It integrates thermal shutdown (+165°C trip, +145°C reset) and current limiting (320–860 mA), and features undervoltage lockout (UVLO) that holds output disabled until VIN exceeds 1.9 V. The device is stable with effective output capacitance as low as 0.1 µF, enabling use of small-footprint, bias-voltage–derated ceramics.

Key Specifications

Pinout & Package

TLV71211DSER is housed in a 1.5-mm × 1.5-mm, 6-pin WSON (SON-6) package with exposed thermal pad. This leadless, surface-mount package provides low thermal resistance (R_θJA = 180°C/W) and supports automated assembly on dense PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-IQ, sub-1.2 V LDO applications.

Compared with TPL71211DRVR and TPS7A0211PDQNR, TLV71211DSER offers superior thermal performance in space-constrained designs, guaranteed stability with 0.1 µF ceramics, and direct compatibility with sub-1.2 V enable signals - making it optimal for miniaturized, thermally sensitive RF modules.

Availability

TLV71211DSER is available at Aetrix Electronics and suitable for wireless handsets, Bluetooth® devices, ZigBee® networks, and Li-ion–operated handheld products requiring stable component supply with full lifecycle support.

Supply support for TLV71211DSER 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 and embedded processing technologies, with decades of LDO design expertise and broad automotive, industrial, and consumer qualification.

The TLV712xx series was developed specifically for ultra-low-voltage, battery-sensitive applications - delivering sub-bandgap regulation, microamp quiescent current, and minimal external component count for portable RF and IoT endpoints.

FAQ

What is the output voltage tolerance of TLV71211DSER over temperature and load?

The TLV71211DSER guarantees ±2% DC output accuracy (±22 mV at 1.1 V) across –40°C to +125°C junction temperature, 2.0 V to 5.5 V input, and 0–300 mA load. This is achieved via an integrated precision bandgap reference and error amplifier, ensuring stable core voltage for sub-1.2 V processors regardless of ambient or operating conditions. TLV71211DSER maintains this accuracy without external trimming or feedback components.

Does TLV71211DSER require an input capacitor for stability?

An input capacitor is not required for TLV71211DSER stability, but Texas Instruments recommends a 0.1–1.0 µF low-ESR ceramic capacitor between IN and GND to improve transient response, noise rejection, and ripple suppression - especially when the device is located far from the power source or driven by a high-impedance supply. TLV71211DSER itself remains stable without it, unlike many older LDO architectures.

Can TLV71211DSER operate with a 1.8 V input supply?

No - TLV71211DSER has an absolute minimum input voltage of 2.0 V, enforced by its undervoltage lockout (UVLO) circuit which disables regulation until VIN rises above 1.9 V. At 1.8 V input, the device remains in shutdown with no output. For 1.8 V input compatibility, consider the TLV70211 (1.2 V+ family) or evaluate if system-level rail sequencing can ensure VIN ≥2.0 V before TLV71211DSER enable assertion.

What is the maximum continuous output current for TLV71211DSER at +85°C ambient?

At +85°C ambient temperature and using the recommended PCB layout (2-layer, 2 oz copper), TLV71211DSER in SON-6 package supports up to 222 mW power dissipation. With a 1.1 V output and 3.3 V typical input, this translates to ~100 mA continuous load. Derating is necessary above +85°C; full 300 mA is rated only at TA < +25°C per TI's EVM test data. TLV71211DSER thermal shutdown activates at +165°C junction temperature.

Is TLV71211DSER pin-compatible with other members of the TLV712xx family?

Yes - all TLV712xx devices in the SON-6 (DSE) package share identical pinout: EN, NC, NC, IN, GND, OUT. TLV71211DSER is functionally and physically interchangeable with TLV71209DSER, TLV71210DSER, etc., differing only in fixed output voltage (0.9 V, 1.0 V, 1.1 V). No PCB changes are needed when swapping within the DSE package variants, provided the output voltage meets system requirements.