Texas Instruments TPS76825QPWP

Overview

TPS76825QPWP from Texas Instruments is a 2.5-V fixed-output, 1-A low-dropout (LDO) voltage regulator in a 20-pin HTSSOP (PWP) package. It features 230 mV typical dropout at 1 A, ±2% output accuracy over temperature and load, 85 µA typical quiescent current, and integrated power-good (PG) monitoring. It is used in battery-powered portable instrumentation requiring stable, low-noise 2.5-V supply rails.

For engineers reviewing the TPS76825QPWP datasheet, TPS76825QPWP pinout, TPS76825QPWP application, or TPS76825QPWP equivalent, key selection criteria include dropout voltage at full load, PG assertion threshold (92–98% VO), thermal performance in PWP package (32.6°C/W θJA), and compatibility with 10-µF/60-mΩ–1.5-Ω ESR output capacitors.

Technical Context

The TPS76825QPWP uses a PMOS pass transistor architecture, enabling ultralow, load-independent quiescent current (85 µA typ) and dropout voltage directly proportional to output current. Its internal 1.1834-V reference and error amplifier provide tight regulation without external compensation.

It integrates open-drain power-good (PG) logic that asserts high when VO ≥ 92% of nominal and deasserts below 98%, with hysteresis of 0.5% VO. Thermal shutdown activates at TJ = 150°C and recovers at ~130°C, while current limiting caps output at 1.2–2.0 A depending on conditions.

Key Specifications

Pinout & Package

TPS76825QPWP is housed in a thermally enhanced 20-pin HTSSOP (PWP) package with exposed thermal pad (GND/HSINK on pins 1, 2, 9–12, 19, 20). The package supports high-power dissipation (4.1 W max with 250 CFM airflow) and requires PCB copper pour for heatsinking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS76825QD and TPS7A4701RGWR, the TPS76825QPWP uniquely balances 1-A capability, 230-mV dropout, 85-µA IQ, and robust thermal performance in a surface-mount package-making it optimal for thermally demanding, battery-sensitive embedded systems.

Availability

TPS76825QPWP is available at Aetrix Electronics and suitable for portable medical devices, industrial sensors, and automotive body electronics requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for TPS76825QPWP 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.

The TPS768xxQ product line was engineered for high-reliability, low-quiescent-current LDO regulation in battery-critical and thermally constrained applications-emphasizing fast transient response, integrated power monitoring, and wide input voltage tolerance.

FAQ

What is the minimum input voltage required for TPS76825QPWP to regulate at 2.5 V?

The minimum input voltage for TPS76825QPWP is the greater of 2.7 V or VO + VDO. With 230 mV typical dropout at 1 A, regulation begins at VI ≥ 2.73 V. Below this, the device enters dropout and VO tracks VI minus VDO. Datasheet specifies VI(min) = 2.7 V absolute minimum regardless of load.

Does TPS76825QPWP require an external feedback resistor network?

No, TPS76825QPWP is a fixed 2.5-V output variant. Its FB/NC pin (Pin 15) is internally connected to the reference and must be left unconnected on the PCB. Only the adjustable TPS76801 requires external R1/R2 resistors.

How does the power-good (PG) output behave during startup and dropout for TPS76825QPWP?

The PG output of TPS76825QPWP is an open-drain signal that goes high when VO reaches ≥92% of 2.5 V (≥2.3 V) and goes low when VO falls ≤98% of 2.5 V (≤2.45 V), providing 0.5% hysteresis. It does not assert during initial power-up until regulation is established, and deasserts cleanly during brownout-enabling reliable sequencing.

Can TPS76825QPWP operate without an input bypass capacitor?

Yes, TPS76825QPWP does not require an input capacitor for stability. However, a 0.047-µF ceramic capacitor placed close to IN and GND improves high-frequency noise rejection and load transient response-especially when the device is located >2 inches from the main power source.

What thermal design guidance applies to TPS76825QPWP in its PWP package?

TPS76825QPWP's PWP package requires connection of the exposed thermal pad (pins 1,2,9–12,19,20) to a minimum 4-in² copper pour on an inner layer using ≥4 thermal vias. With 250 CFM airflow, its θJA drops to 41.2 mW/°C, enabling 2.3 W continuous dissipation at +70°C ambient-critical for sustained 1-A operation.