Texas Instruments TPS2011APWP

Overview

TPS2011APWP from Texas Instruments is a 50-mΩ N-channel MOSFET high-side power distribution switch with 0.9-A short-circuit current limit, logic-level enable input compatible with 3-V/5-V systems, and integrated thermal/short-circuit protection. It operates from 2.7 V to 5.5 V input and delivers controlled 6.1-ms rise time for inrush current limiting in USB-powered peripherals and hot-plug modules.

For engineers reviewing the TPS2011APWP datasheet, TPS2011APWP pinout, TPS2011APWP application, or TPS2011APWP equivalent, this device is selected for robust overcurrent handling in embedded power rails where precise current limiting (0.9 A), low quiescent supply current (10 μA disabled), and SOIC/TSSOP package compatibility are critical design requirements.

Technical Context

The TPS2011APWP implements an internal charge pump to drive the N-channel MOSFET gate above source potential, enabling full enhancement down to 2.7 V input without external components. Its current-limit threshold is fixed at 0.9 A (typical) at 25°C, with thermal shutdown activating at ~140°C junction temperature and automatic recovery after ~20°C hysteresis.

Undervoltage lockout disables the switch below ~2 V input, ensuring safe power-up sequencing. The device lacks a drain-source back-gate diode, preventing reverse current flow - a key requirement for bidirectional isolation in redundant power paths and hot-swap architectures.

Key Specifications

Pinout & Package

TPS2011APWP is housed in a 14-pin TSSOP (PWP) package with exposed thermal pad, optimized for surface-mount assembly and moderate power dissipation (700 mW at 25°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2011APWP, TPS2011AD offers identical functionality in a larger SOIC package with reduced thermal performance, while TPS2051BDBVR trades current capacity and thermal robustness for compact size - neither is pin-compatible, and both require layout revision for substitution.

Availability

TPS2011APWP is available at Aetrix Electronics and suitable for USB peripheral power switching, hot-swappable module protection, and industrial I/O power management requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TPS2011APWP 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 high-reliability power-switching solutions.

The TPS201xA family was designed specifically for robust hot-plug and overcurrent-prone applications in computing, industrial, and communications equipment - emphasizing fault tolerance, controlled turn-on, and wide-input-voltage operation.

FAQ

What is the exact short-circuit current limit of TPS2011APWP?

The TPS2011APWP has a typical short-circuit output current limit of 0.9 A at 25°C, with a minimum of 0.66 A and maximum of 1.1 A across temperature and process variation. This value is factory-trimmed and applies when the output is shorted to ground with the device enabled - it defines the constant-current mode ceiling before thermal shutdown intervenes.

Does TPS2011APWP support 3.3-V logic enable inputs?

Yes, TPS2011APWP supports 3.3-V logic levels on its EN pin: the low-level input voltage threshold is 0.5 V (max) when VI(IN) is between 2.7 V and 4.5 V, ensuring reliable activation with standard 3.3-V CMOS outputs. No level-shifting circuitry is required for interfacing with 3.3-V microcontrollers or FPGAs.

What is the thermal shutdown behavior of TPS2011APWP during continuous overload?

When the TPS2011APWP junction temperature reaches approximately 140°C under sustained overload, the thermal protection circuit disables the power switch. After cooling by ~20°C, the device automatically recovers and re-enables - cycling on/off until the fault is removed. This behavior is documented in the SLVS189C datasheet and verified across production lots.

Can TPS2011APWP operate from a 2.7-V supply without performance degradation?

Yes, TPS2011APWP is fully specified down to 2.7 V input: the internal charge pump maintains gate drive capability, rDS(on) increases only moderately (to ~37 mΩ at 3.3 V, 25°C), and rise time extends to 8.6 ms - all within guaranteed operating limits. No derating or external compensation is needed at minimum VIN.

Is there a back-gate diode in the TPS2011APWP MOSFET structure?

No, the TPS2011APWP uses an N-channel MOSFET configured as a high-side switch with no intrinsic drain-source back-gate diode. This eliminates reverse current flow from OUT to IN when the switch is off - a critical feature for power domain isolation in systems with multiple supplies or battery backup paths.