Texas Instruments TLV7111333DDSET

Overview

TLV7111333DDSET from Texas Instruments is a dual-channel, 200mA low-dropout linear regulator IC with independent enable control per channel, 1.3V and 3.3V fixed outputs, 2% output accuracy over –40°C to +125°C, 150mV dropout at 200mA (VOUT = 3.3V), and 35µA quiescent current per regulator - designed for power-sensitive portable devices requiring clean, sequenced dual-rail supplies.

For engineers reviewing the TLV7111333DDSET datasheet, TLV7111333DDSET pinout, TLV7111333DDSET application, or TLV7111333DDSET equivalent, this page delivers verified electrical specs, SON-6 package layout guidance, dual-LDO sequencing behavior, EN pin pull-down functionality, and real-world handheld power architecture use cases.

Technical Context

The TLV7111333DDSET integrates two independent PMOS-based LDO regulators sharing a common input but featuring separate EN1/EN2 pins and dedicated VREFs - eliminating crosstalk between output rails. Each regulator includes internal current limiting, thermal shutdown, and undervoltage lockout (UVLO) at 1.9V.

Unlike the TLV710 series, the TLV711-D variant incorporates active pulldown circuits on both EN pins and internal pull-down resistors (150kΩ), ensuring reliable disable when host GPIOs float or enter high-impedance states during processor boot-up sequences.

Key Specifications

Pinout & Package

TLV7111333DDSET is housed in a 1.5mm × 1.5mm SON-6 package with wettable flank leads, optimized for automated optical inspection (AOI) and space-constrained portable PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV7101333DDSET, TLV7111333DDSET eliminates external pull-down components and improves system robustness during power sequencing; versus TPS7061333DRVR, it reduces component count and PCB area by integrating both rails - at the cost of slightly higher IQ and fixed 3.3V output.

Availability

TLV7111333DDSET is available at Aetrix Electronics and suitable for smartphone power management, wireless headset audio subsystems, industrial handheld scanners, and wearable sensor hubs requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV7111333DDSET 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 engineered specifically for portable electronics demanding ultra-low IQ, dual-rail independence, and robust enable behavior - addressing key pain points in battery-powered RF and mixed-signal applications.

FAQ

What output voltages does the TLV7111333DDSET provide?

The TLV7111333DDSET provides two factory-programmed fixed outputs: 1.3V on OUT1 (pin 6) and 3.3V on OUT2 (pin 5). These values are set via on-die OTP programming and require no external resistors. Both outputs maintain ±2% accuracy across –40°C to +125°C and deliver up to 200mA each under specified conditions.

Does TLV7111333DDSET require external pull-down resistors on EN1 and EN2?

No - TLV7111333DDSET includes internal 150kΩ pull-down resistors on both EN1 (pin 1) and EN2 (pin 3), as indicated by the "D" suffix in its part number. This design ensures the device remains disabled during power-up, reset, or when host GPIOs are in high-impedance states, eliminating the need for external components.

What is the minimum input voltage required for TLV7111333DDSET to regulate both outputs?

The minimum input voltage depends on the higher-output rail (3.3V) and its load. At 200mA load on OUT2, the dropout is 150mV - so VIN must be ≥3.45V to sustain regulation. The absolute minimum VIN is 2.0V per datasheet, but regulation fails below VOUT + VDO. For 1.3V/3.3V dual operation at full load, 3.45V is the practical lower limit.

Can TLV7111333DDSET be used with 0.1µF output capacitors?

Yes - TLV7111333DDSET is explicitly characterized to remain stable with an effective output capacitance of 0.1µF or greater. While 1µF X5R/X7R ceramics are recommended for optimal PSRR and transient response, smaller 0.1µF capacitors (e.g., 0201-size) are viable where board space is constrained, provided their effective capacitance under bias and temperature meets the 0.1µF minimum.

How does TLV7111333DDSET handle reverse current when OUT exceeds IN?

TLV7111333DDSET contains a built-in PMOS body diode that conducts when OUT > IN. This path is not current-limited, so extended reverse voltage operation risks damage. TI recommends limiting reverse current to ≤5% of rated output current (≤10mA) using external series diodes or MOSFETs if reverse bias is expected - a condition not covered by standard TLV7111333DDSET operation.