Texas Instruments TLV71125125DSET

Overview

TLV71125125DSET from Texas Instruments is a dual-channel, 200mA low-dropout linear regulator with fixed 2.5V and 1.25V outputs, 2% accuracy over –40°C to +125°C, 150mV dropout at 200mA (VOUT = 2.8V), and 35µA quiescent current per channel - designed for power-sensitive portable devices including smartphones and handheld audio systems.

For engineers reviewing the TLV71125125DSET datasheet, TLV71125125DSET pinout, TLV71125125DSET application, or TLV71125125DSET equivalent, key selection considerations include independent enable control per channel, active pulldown on both EN pins (D-series), stable operation with ≥0.1µF ceramic output capacitance, and thermal/overcurrent protection integrated per regulator.

Technical Context

The TLV71125125DSET integrates two independent PMOS-based LDO regulators sharing a common input and ground, each with dedicated voltage reference and feedback path to minimize crosstalk. Each channel features separate EN1/EN2 inputs with internal 150kΩ pull-down resistors, enabling reliable disable during processor GPIO three-state conditions.

It operates across 2.0V–5.5V input range and delivers regulated 2.5V/1.25V outputs with high PSRR (70dB @ 1kHz) and low output noise (48µVRMS, 100Hz–100kHz). Thermal shutdown activates at +165°C and resets at +145°C; undervoltage lockout triggers below 1.9V VIN.

Key Specifications

Pinout & Package

TLV71125125DSET is housed in a 1.5mm × 1.5mm SON-6 package with wettable flanks, optimized for space-constrained portable PCBs and compatible with automated optical inspection (AOI).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV71025125DSET, TLV71125125DSET simplifies system design by eliminating external EN pull-downs, while TPL7407LDDGKR serves a fundamentally different load-driving function and cannot replace this dual-LDO's precision regulation capability.

Availability

TLV71125125DSET is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hubs, portable audio DAC supply, and industrial handheld terminals requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for TLV71125125DSET 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, embedded processing, and power management ICs, with decades of expertise in precision low-dropout regulators.

The TLV711 series belongs to TI's ultra-low-IQ dual-LDO product line, engineered specifically for battery-powered portable electronics demanding high efficiency, small size, and robust protection features.

FAQ

What are the fixed output voltages of the TLV71125125DSET?

The TLV71125125DSET provides two factory-programmed fixed output voltages: 2.5V on OUT1 and 1.25V on OUT2. These values are set during manufacturing using OTP technology and cannot be adjusted externally. Both outputs maintain ±2% accuracy across –40°C to +125°C junction temperature and full load range.

Does TLV71125125DSET require external pull-down resistors on EN1 and EN2?

No - TLV71125125DSET includes internal 150kΩ pull-down resistors on both EN1 and EN2 pins, a defining feature of the "D" suffix variant. This ensures reliable disable when control signals float or enter high-impedance states, eliminating the need for external components and reducing BOM count and layout complexity.

What is the minimum output capacitance required for TLV71125125DSET stability?

TLV71125125DSET is stable with an effective output capacitance of ≥0.1µF. For optimal transient response and PSRR, Texas Instruments recommends using 1µF X5R or X7R ceramic capacitors placed close to OUT1 and OUT2 pins. The effective capacitance must account for DC bias and temperature derating - a 1µF rated part typically delivers >0.5µF under operating conditions.

How does TLV71125125DSET handle thermal overload?

TLV71125125DSET incorporates thermal shutdown protection that trips at +165°C junction temperature and resets at +145°C. During sustained overload, it cycles between current limit and thermal shutdown to prevent permanent damage. The PMOS pass element includes a body diode, so reverse current flow (OUT > IN) is possible but unregulated and should be limited to ≤5% of rated output current.

Can TLV71125125DSET operate with input voltage below 2.0V?

No - TLV71125125DSET has a specified input voltage range of 2.0V to 5.5V. Operation below 2.0V violates absolute maximum ratings and may cause unpredictable behavior or failure to regulate. Additionally, undervoltage lockout activates below 1.9V VIN, forcing shutdown to protect downstream circuitry.