Texas Instruments TLV7111333DDSER

Overview

TLV7111333DDSER from Texas Instruments is a dual-channel, 200mA low-dropout linear regulator with fixed 1.3V and 3.3V outputs, 2% accuracy over –40°C to +125°C, 35µA quiescent current per channel, and integrated pull-down resistors on both EN pins for robust disable behavior in indeterminate GPIO states. It serves as a power management IC for multi-rail portable systems requiring independent voltage domains.

For engineers reviewing the TLV7111333DDSER datasheet, TLV7111333DDSER pinout, TLV7111333DDSER application, or TLV7111333DDSER equivalent, key selection criteria include dual-output sequencing independence, 150mV dropout at 200mA/3.3V, 70dB PSRR at 1kHz, stable operation with ≥0.1µF ceramic output capacitance, and SON-6 package compatibility with handheld PCB layouts.

Technical Context

The TLV7111333DDSER integrates two independent PMOS-based LDO regulators sharing a common input but featuring dedicated VREF and active pulldown circuits on each output. Its EN1/EN2 pins incorporate internal 150kΩ pull-down resistors-confirmed for the "D" suffix variant-ensuring reliable shutdown when control signals float.

Each regulator delivers 200mA with separate thermal and overcurrent protection, and minimizes crosstalk via dedicated reference paths. The device operates across 2.0V–5.5V input and supports output voltages from 1.2V to 4.8V in 50mV increments; this specific part is factory OTP-programmed for 1.3V/3.3V dual outputs.

Key Specifications

Pinout & Package

Package: 1.5mm × 1.5mm SON-6 (DSE), thermally enhanced, exposed pad (not electrically connected), RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV7111333DDSER, TLV7101333DDSER lacks integrated EN pull-downs and requires external biasing for fail-safe shutdown, while TPL7407LDR is a driver IC with no regulation function-neither serves as a drop-in or functional substitute for dual-rail LDO operation.

Availability

TLV7111333DDSER is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hubs, industrial handheld terminals, medical point-of-care displays, and battery-powered IoT edge nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV7111333DDSER 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 expertise in precision power management ICs.

The TLV711 series was designed specifically for portable and battery-critical applications demanding ultra-low quiescent current, dual independent outputs, and robust enable behavior-addressing challenges in smartphones, wearables, and medical devices.

FAQ

What output voltages does the TLV7111333DDSER provide?

The TLV7111333DDSER provides two fixed, factory-programmed output voltages: 1.3V on OUT1 and 3.3V on OUT2. These values are set via on-chip OTP programming and require no external resistors or configuration. Both outputs maintain ±2% accuracy across –40°C to +125°C junction temperature and load currents up to 200mA.

Does TLV7111333DDSER require external capacitors, and what values are recommended?

Yes, TLV7111333DDSER requires external input and output capacitors. A minimum 1µF X5R/X7R ceramic capacitor is recommended from IN to GND, and 1µF ceramic capacitors from each OUTx to GND. The device remains stable with as little as 0.1µF effective output capacitance, enabling use of small-footprint 0201/0402 MLCCs in space-constrained designs.

How does the EN pin pull-down feature in TLV7111333DDSER improve system reliability?

The TLV7111333DDSER integrates 150kΩ pull-down resistors on both EN1 and EN2 pins. This ensures regulators remain disabled during power-up, processor reset, or GPIO floating states-preventing uncontrolled voltage ramp-up that could damage downstream logic. This eliminates the need for external pull-down resistors and improves robustness in battery-powered systems with intermittent host control.

What is the dropout voltage of TLV7111333DDSER at full load?

At 200mA load and 3.3V output (OUT2), the TLV7111333DDSER exhibits a typical dropout voltage of 150mV. At the same load and 1.3V output (OUT1), dropout is lower-approximately 75mV-due to reduced headroom requirements. These values are measured at TJ = +25°C and guarantee regulation down to VIN = VOUT + VDO across the full operating temperature range.

Can TLV7111333DDSER be used in automotive applications?

The TLV7111333DDSER is specified for operation from –40°C to +125°C junction temperature and includes thermal shutdown and overcurrent protection-features aligned with automotive ambient requirements. However, it is not AEC-Q200 qualified, lacks automotive-specific qualification testing (e.g., HTOL, vibration), and is marketed for industrial and portable consumer use. For automotive applications, TI recommends AEC-Q100–qualified alternatives such as TPS7B81xx-Q1 series.