TI TPS22975DSG

Mfr. Part

TPS22975DSG

Manufacturer

Texas Instruments

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Detailed Description

High-current, low-RON load switch for 0.6 V to 5.5 V rails. Handles up to 6 A with controlled turn-on to limit inrush current. Integrated quick output discharge for clean power-down and reverse-current blocking when disabled. Compact 2.0 mm x 2.0 mm WSON (DSG) package for tight layouts. Ideal for power gating, rail sequencing, and distribution in space-constrained systems. Category: Integrated Circuits (ICs), Specialized ICs.

Key Features

Wide input range: 0.6 V to 5.5 V

High load current: up to 6 A (derates with temperature and PCB layout)

Very low on-resistance: typically in the tens of milliohms to minimize voltage drop and heating

Slew-rate controlled soft-start to reduce inrush current

Quick Output Discharge (QOD) for fast, predictable shutdown

Reverse current blocking when disabled to prevent back-powering

Logic-level enable control for easy MCU/FPGA interfacing

Ultra-compact 8-pin WSON (DSG) 2.0 mm x 2.0 mm footprint

RoHS-compliant, lead-free plating

Key Advantages

Protects upstream supplies by limiting inrush during startup

Reduces power loss and heat thanks to low RON

Ensures clean system resets and sequencing with QOD

Prevents unintended current flow from load to source when off

Saves board space while increasing current capability

Simple control and integration into digital power architectures

Packaging

Type and case

- TI package code DSG, 8-pin WSON

- User-supplied package/case code 1106 corresponds to 8-WSON (approx. 2.0 mm x 2.0 mm)

Physical dimensions

- Body size nominal: about 2.0 mm x 2.0 mm

- Thin profile, low z-height for dense assemblies

Materials and finish

- Molded epoxy with copper leadframe

- NiPdAu or equivalent lead finish, lead-free and RoHS compliant

Pin configuration

- 8 leads plus exposed thermal pad

- Typical functional pins: VIN, VOUT, EN/ON, GND, QOD, and pins associated with controlled turn-on

- Exposed pad recommended to connect to GND for thermal performance (see datasheet for exact pinout)

Mounting

- Surface-mount, reflow soldering per JEDEC J-STD-020

- Moisture Sensitivity Level typically MSL 1 (check datasheet label for exact MSL)

Tape-and-reel

- Standard EIA-481 embossed tape

- 8 mm tape width with 4 mm pitch pockets

- Typical reel quantity 3000 units; cut tape available upon request

Thermal characteristics (board dependent)

- Junction-to-ambient thermal resistance (θJA) typically in the ~60–100 °C/W range on a well-ventilated 4-layer board

- Exposed pad and solid ground pour significantly improve heat dissipation

Electrical properties summary

- VIN operating range: 0.6–5.5 V

- Continuous IOUT: up to 6 A with proper thermal design

- RON: very low (tens of mΩ), varies with VIN and temperature

- Off-state leakage: very low (µA-range)

- Controlled rise time to limit inrush; QOD for discharge when off

Lifecycle

Status: Active and in regular production based on latest available information. Not approaching discontinuation to our knowledge.

Recommended equivalents and alternatives (verify pinout/features for your design)

- TPS22975N (similar, without quick output discharge)

- TPS22976 (same family, 6 A class with related feature set)

- TPS22965/TPS22965W (5 A class, similar low RON and control features)

- TPS22946/TPS22918 (lower current options for smaller rails)

If you need drop-in compatible or second-source options, or if lifecycle status is critical for your program, please contact our Y-IC sales team via our website for the latest cross-reference and risk assessment.

Key Application Areas

Power rail gating and distribution in smartphones, tablets, and wearables

SSDs, HDDs, and storage controllers requiring soft-started supply rails

Notebook and ultrabook sub-rail switching

Networking and telecom line cards and modules

FPGA/ASIC power sequencing and controlled power-down

Industrial and medical portable equipment with battery-powered rails

Sensor hubs, wireless modules, and always-on domain isolation

Datasheet

Y-IC hosts the most authoritative and up-to-date datasheet for TPS22975DSG on this product page. We recommend downloading it here to get exact pinout, timing, thermal data, recommended layouts, and application notes.

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