Texas Instruments TLV75725PDYDR

Overview

TLV75725PDYDR from Texas Instruments is a 1A, low-quiescent-current (25μA typical), fixed 2.5V output LDO regulator in a thermally enhanced SOT-23-5 (DYD) package with exposed thermal pad. It operates from 1.45V to 5.5V input, delivers ≤1% output accuracy, and maintains regulation with only a 1µF ceramic output capacitor - enabling compact, low-power supply rails for MCU core logic and sensor interfaces.

For engineers reviewing the TLV75725PDYDR datasheet, TLV75725PDYDR pinout, TLV75725PDYDR application, or TLV75725PDYDR equivalent, key selection criteria include its 450mV max dropout at 1A (for 2.5VOUT), active output discharge, built-in soft-start, foldback current limit, and compatibility with battery-powered, portable, and space-constrained embedded systems requiring stable low-noise voltage regulation.

Technical Context

The TLV75725PDYDR uses a PMOS pass transistor architecture with precision band-gap reference and error amplifier, enabling tight 1% output accuracy across –40°C to +125°C and high PSRR (46dB at 100kHz). Its internal soft-start ensures monotonic V_OUT rise and limits inrush current during power-up.

Functional safety features include undervoltage lockout (UVLO with 1.3V nominal threshold and 40mV hysteresis), thermal shutdown (165°C trip, 155°C reset), and foldback current limiting that reduces dissipation during short-circuit events - critical for reliability in unattended or thermally constrained applications.

Key Specifications

Pinout & Package

TLV75725PDYDR is housed in a 2.9mm × 1.6mm SOT-23-5 package (DYD) with an exposed thermal pad internally connected to GND. The thermal pad must be soldered to a large-area PCB ground plane to achieve R_θJA = 60.3°C/W (EVM) and sustain full 1A load under ambient conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL7407LPGQ1 and TPS7A2025PDQNR, TLV75725PDYDR uniquely combines 1A output, active discharge, foldback current limiting, and thermal pad packaging - making it the only viable choice for high-reliability, space-constrained 2.5V power rails demanding full fault coverage and thermal headroom.

Availability

TLV75725PDYDR is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, smart home hub processors, and automotive body control modules requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV75725PDYDR 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 connectivity technologies, with decades of LDO design expertise and broad automotive/industrial qualification.

The TLV757P family was engineered for ultra-small, low-I_Q power management in battery-operated and thermally constrained embedded systems - emphasizing solution size reduction, efficiency at light loads, and robustness across extended temperature ranges.

FAQ

What is the maximum dropout voltage of TLV75725PDYDR at 1A output current?

The TLV75725PDYDR has a maximum dropout voltage of 450mV at 1A output current and junction temperature ≤+85°C. This value is specified for the DYD package variant and ensures reliable 2.5V regulation from input voltages as low as 2.95V - critical for maintaining operation during Li-ion battery discharge down to 3.0V nominal.

Does TLV75725PDYDR require an external capacitor on the EN pin for stable operation?

No, TLV75725PDYDR does not require an external capacitor on the EN pin. Its enable input draws only 10nA typical current and features internal hysteresis; however, if driven by a high-impedance source, a small bypass capacitor (e.g., 100pF) may reduce noise susceptibility - but this is not mandated by the datasheet or required for basic functionality of TLV75725PDYDR.

Can TLV75725PDYDR be used with a 0.47µF output capacitor?

TLV75725PDYDR is specified to be stable with ≥1µF ceramic output capacitance. While 0.47µF meets the absolute minimum effective capacitance requirement after derating (per datasheet note), TI recommends ≥1µF to guarantee phase margin and transient response across all process/voltage/temperature corners - using 0.47µF risks instability and is not supported for production use of TLV75725PDYDR.

How does the active output discharge function work in TLV75725PDYDR?

When TLV75725PDYDR is disabled (EN < 0.3V), an internal NMOS switch connects the OUT pin directly to GND, actively discharging the output capacitor. This ensures rapid, predictable V_OUT collapse - eliminating residual voltage that could cause undefined states in downstream logic or interfere with power sequencing in multi-rail systems using TLV75725PDYDR.

Is TLV75725PDYDR qualified for automotive applications?

TLV75725PDYDR is not AEC-Q200 qualified. It is rated for –40°C to +125°C operating junction temperature and includes automotive-grade features like UVLO and thermal shutdown, but lacks the full qualification testing required for automotive ECUs. For automotive body control modules, TI recommends the pin-compatible AEC-Q200 qualified TLV75725PQDBVRQ1 instead of TLV75725PDYDR.