Texas Instruments TPS2010D

Overview

TPS2010D from Texas Instruments is a 95-mΩ max (at 5.5 V) high-side N-channel MOSFET power-distribution switch with logic-compatible enable input, 0.4-A short-circuit current limit, and integrated thermal/short-circuit protection. It operates from 2.7 V to 5.5 V, delivers controlled 3.5–4 ms output rise/fall times, and is used in USB peripheral power management and hot-swap circuits where capacitive load inrush must be limited.

For engineers reviewing the TPS2010D datasheet, TPS2010D pinout, TPS2010D application, or TPS2010D equivalent, key selection criteria include its SOIC-8 package compatibility with Siliconix Littlefoot™ PMOS switches (with GND connected), 10-µA standby current, and precise 0.4-A current-limit threshold at 25°C - critical for low-power downstream port protection.

Technical Context

The TPS2010D integrates an internal 100-kHz charge pump that drives the N-channel MOSFET gate above the source, enabling full enhancement down to 2.7-V input. Its driver circuit enforces slow, controlled switching (2–4 ms transitions) to suppress inrush current and EMI during hot-plug events.

Current limiting is implemented via a sense FET architecture - not external resistors - delivering accurate 0.4-A trip threshold with minimal conduction loss. Thermal shutdown activates at ~180°C junction temperature, with ~20°C hysteresis for automatic recovery after fault removal.

Key Specifications

Pinout & Package

TPS2010D uses an 8-pin SOIC (D) package with exposed pad not present; footprint matches industry-standard SOIC-8, compatible with automated SMT assembly and reflow profiles per JEDEC Level-1-260°C-UNLIM.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side load switch applications.

Compared with TPS2011D and TPS2051BD, the TPS2010D provides the lowest and most tightly specified current-limit threshold (0.4 A) in the family, making it uniquely suitable for ultra-low-power USB ports and battery-sensitive applications where precise fault current capping is mandatory.

Availability

TPS2010D is available at Aetrix Electronics and suitable for USB peripheral power switching, industrial hot-swap modules, and low-power sensor node power control requiring stable component supply and long-term lifecycle support.

Supply support for TPS2010D 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 broad industrial, automotive, and communications portfolio coverage.

The TPS201x product line was designed specifically for robust, low-voltage power distribution in systems prone to heavy capacitive loads and short circuits - targeting USB, docking stations, and modular industrial equipment.

FAQ

What is the exact short-circuit current limit of the TPS2010D?

The TPS2010D has a typical short-circuit current limit of 0.4 A at 25°C, with a minimum of 0.22 A and maximum of 0.6 A across temperature and process variation. This value is factory-trimmed and applies when the output is shorted to GND while the device is enabled and supplied at 5.5 V - a defining characteristic distinguishing it from other TPS201x variants like the TPS2011D (1.2 A).

Does the TPS2010D require external components for basic operation?

No, the TPS2010D operates autonomously with no external components required for core functionality. Its internal 100-kHz charge pump, driver, current-sense FET, and thermal protection are fully integrated. A 0.1-µF ceramic bypass capacitor from IN to GND is recommended for stability, but not mandatory for enable/disable or current limiting - unlike discrete MOSFET solutions needing gate resistors, Zener clamps, or sense resistors.

Can the TPS2010D replace Siliconix Littlefoot™ PMOS switches?

Yes, the TPS2010D in SOIC-8 (D) package is explicitly designed as a pin-compatible drop-in replacement for Siliconix Littlefoot™ PMOS power switches, provided GND (Pin 1) is connected. Unlike the PMOS predecessors, the TPS2010D uses an N-channel MOSFET with charge pump, delivering lower R_DS(on) (95 mΩ vs. typical 150+ mΩ) and superior thermal performance without layout changes.

What is the maximum continuous output current rating for the TPS2010D?

The TPS2010D does not specify a fixed "continuous output current" rating independent of thermal conditions. Instead, it is internally current-limited to 0.4 A under short-circuit conditions. Continuous operation at this level is thermally feasible only with adequate PCB copper area and ambient below 70°C - verified using the 172°C/W θ_JA (SOIC) and power dissipation formula P_D = I² × R_DS(on). At 0.4 A and 95 mΩ, P_D ≈ 15 mW, well within SOIC-8's 464 mW rating at 70°C.

Is the TPS2010D still in active production?

The TPS2010D is marked "NRND" (Not Recommended for New Designs) in TI's packaging addendum, indicating it remains in production and available for purchase but is not promoted for new projects. Aetrix Electronics maintains inventory and supports legacy design continuity, including full traceability and lifecycle coordination - essential for industrial and medical systems with multi-year production cycles.