Texas Instruments TLV7111533DDSET

Overview

TLV7111533DDSET from Texas Instruments is a dual-channel, 200mA low-dropout linear regulator with fixed 1.5V and 3.3V outputs, 2% accuracy over –40°C to +125°C, 150mV dropout at 200mA (VOUT = 2.8V), and 70dB PSRR at 1kHz - designed for power-sensitive portable electronics including smartphones and handheld audio devices.

For engineers reviewing the TLV7111533DDSET datasheet, TLV7111533DDSET pinout, TLV7111533DDSET application, or TLV7111533DDSET equivalent, key selection criteria include independent enable control per channel, active pulldown on both EN pins, stable operation with ≥0.1µF ceramic output capacitance, and thermal/overcurrent protection in the 1.5mm × 1.5mm SON-6 package.

Technical Context

The TLV7111533DDSET integrates two independent PMOS-based LDO regulators sharing a common input but featuring dedicated VREF and feedback paths per channel to minimize crosstalk. Each regulator includes internal current limiting and thermal shutdown circuitry, with undervoltage lockout (UVLO) activating below 1.9V VIN.

Its TLV711-D series designation confirms integrated 150kΩ pull-down resistors on EN1 and EN2 pins - ensuring reliable disable when GPIOs float during processor startup - and active pulldown circuitry on both outputs to rapidly discharge loads upon shutdown.

Key Specifications

Pinout & Package

Package: 1.5mm × 1.5mm SON-6 (DSE), wettable flank, 0.5mm pitch, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV7101533DDSET and TPS70245PWPR, the TLV7111533DDSET uniquely combines factory-fixed dual outputs, EN pin pulldowns, active output pulldown, and 1.5mm × 1.5mm SON-6 packaging - making it optimal for miniaturized, battery-powered systems requiring guaranteed startup behavior and fast load discharge.

Availability

TLV7111533DDSET is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hubs, and industrial handheld terminals requiring stable component supply, long-term lifecycle support, and consistent parametric performance.

Supply support for TLV7111533DDSET 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TLV711 series belongs to TI's low-power LDO portfolio, engineered specifically for portable and battery-operated devices demanding ultra-low quiescent current, high PSRR, and small-footprint dual-rail power management.

FAQ

What output voltages does the TLV7111533DDSET provide?

The TLV7111533DDSET provides two fixed, factory-programmed output voltages: 1.5V on OUT1 and 3.3V on OUT2. These values are set via OTP programming and require no external resistors. Both outputs maintain ±2% accuracy across –40°C to +125°C junction temperature and support up to 200mA load current each.

Does TLV7111533DDSET include enable pin pull-down resistors?

Yes, TLV7111533DDSET is part of the TLV711-D series and includes internal 150kΩ pull-down resistors on both EN1 and EN2 pins. This ensures reliable disable when control signals are floating - such as during processor reset or three-state GPIO conditions - eliminating need for external components.

What is the minimum output capacitance required for TLV7111533DDSET stability?

The TLV7111533DDSET is stable with an effective output capacitance of 0.1µF or greater. It is optimized for 1.0µF X5R/X7R ceramic capacitors but supports smaller values down to 0.1µF - enabling use of compact 0201- or 0402-size MLCCs in space-constrained layouts without compromising transient response or PSRR.

How does TLV7111533DDSET handle output discharge during shutdown?

The TLV7111533DDSET features active pulldown circuitry on both OUT1 and OUT2. When either EN pin is driven low, the corresponding output is actively pulled to GND - not just high-impedance - ensuring rapid, controlled discharge of downstream capacitance and preventing undefined logic states in powered-off subsystems.

What protection features are integrated into TLV7111533DDSET?

TLV7111533DDSET integrates over-current protection with foldback current limiting, thermal shutdown at +165°C (auto-recovery), and undervoltage lockout (UVLO) that disables regulation below 1.9V VIN. These features protect the device and load during fault conditions such as short circuits, excessive ambient temperature, or brownout events.