Texas Instruments TPS2022P

Overview

TPS2022P from Texas Instruments is a 1.5-A rated, 8-pin PDIP-packaged high-side N-channel MOSFET power distribution switch designed for hot-plug and capacitive-load applications. It features 33-mΩ on-resistance at 5 V input, active-low enable logic compatible with 3-V/5-V systems, overcurrent detection with open-drain OC output, thermal shutdown with ~20°C hysteresis, and undervoltage lockout at ~2 V - enabling robust USB peripheral, docking station, and industrial I/O module protection.

For engineers reviewing the TPS2022P datasheet, TPS2022P pinout, TPS2022P application, or TPS2022P equivalent, key selection criteria include its 1.5-A current-limit threshold (distinct from TPS2021's 0.9 A and TPS2023's 2.2 A), SOIC/PDIP package options, 2.7–5.5 V operating range, 6.1-ms typical rise time, and integrated charge-pump gate drive eliminating external components.

Technical Context

The TPS2022P implements an internal charge-pump-driven N-channel MOSFET high-side switch with controlled slew-rate gate drive to limit inrush current and EMI during turn-on/turn-off. Its current-sense FET architecture enables precise constant-current limiting without series resistive loss, while thermal sensing shuts down the switch at ~140°C junction temperature and auto-recovers after ~20°C cooldown.

Undervoltage lockout ensures the switch remains off until input voltage exceeds ~2 V, supporting safe hot-insertion. The OC pin asserts low during overcurrent or overtemperature events and remains latched low until fault removal - enabling system-level fault monitoring without additional circuitry.

Key Specifications

Pinout & Package

TPS2022P is supplied in an 8-pin plastic dual in-line package (PDIP) with 0.3-inch body width and through-hole mounting. Pin spacing is 0.1 inch (2.54 mm), standard for DIP-8 footprints.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2022D and TPS2052BDR, the TPS2022P offers the lowest BOM cost and simplest through-hole integration for 1.5-A hot-plug applications, while maintaining identical protection features and timing behavior - making it ideal for industrial control panels and evaluation hardware where manual assembly or socketing is preferred.

Availability

TPS2022P is available at Aetrix Electronics and suitable for USB peripheral power switching, industrial I/O module protection, hot-swap backplane slots, and embedded computing power sequencing requiring stable component supply and long-term industrial lifecycle support.

Supply support for TPS2022P 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 distribution solutions.

The TPS202x family was engineered specifically for hot-plug and heavy-capacitive-load environments - delivering integrated current limiting, thermal protection, and controlled slew rates in compact SOIC and PDIP packages for industrial, computing, and communications infrastructure.

FAQ

What is the maximum continuous output current rating for the TPS2022P?

The TPS2022P is rated for 1.5 A continuous output current at 25°C ambient temperature. Its current-limit threshold is fixed at 1.5 A (typical 1.1 A min, 1.8 A max) and remains stable across its 2.7–5.5 V input range and –40°C to 85°C operating ambient. This value is factory-trimmed and does not require external configuration.

Does the TPS2022P require external components for basic operation?

No, the TPS2022P operates autonomously with only two recommended external components: a 0.1-μF ceramic bypass capacitor between IN and GND, and an external pull-up resistor on the OC pin for fault reporting. Its internal charge pump eliminates the need for external boost circuitry, and its UVLO, thermal shutdown, and current limiting are fully self-contained.

How does the TPS2022P behave during a short-circuit event?

When a short occurs, the TPS2022P immediately enters constant-current mode at ~1.5 A, reducing V_OUT to maintain that current. If the fault persists, power dissipation raises junction temperature until thermal shutdown activates at ~140°C. The device then cycles on/off with ~20°C hysteresis until the short is removed - all without external intervention.

Can the TPS2022P be used with a 3.3-V supply?

Yes, the TPS2022P fully supports 3.3-V operation: its 2.7–5.5 V input range includes 3.3 V, and its charge pump ensures reliable gate drive even at this lower voltage. At 3.3 V and 25°C, r_DS(on) is typically 37–41 mΩ, enabling efficient 1.5-A delivery with <230 mW conduction loss.

Is the TPS2022P pin-compatible with other TPS202x variants?

Yes, all TPS202x devices - including TPS2020P, TPS2021P, TPS2022P, TPS2023P, and TPS2024P - share identical 8-pin PDIP pinouts and package dimensions. Only the current-limit threshold differs (0.3 A to 3.0 A), allowing direct substitution in existing layouts when load requirements change.