company blog about TI TPS22968DPUR Dual Channel Ultra-Low Resistance Load Switch With Controlled Turn On

TI TPS22968DPUR Dual Channel Ultra-Low Resistance Load Switch With Controlled Turn On

Shenzhen Mingjiada Electronics Co., Ltd., as a globally renowned distributor of electronic components, has been supplying TI genuine TPS22968DPUR dual-channel ultra-low resistance load switches, providing high-performance power management solutions for industries such as industrial automation, consumer electronics, and communication equipment.

TPS22968DPUR Product Overview:

The TPS22968DPUR is a compact, ultra-low on-resistance dual-channel load switch with controlled turn-on functionality. It employs advanced MOSFET technology and innovative packaging design to provide efficient power distribution solutions for modern electronic systems. This TPS22968DPUR device is specifically designed for applications requiring precise power management, offering outstanding electrical performance and reliability.

The TPS22968DPUR integrates two independent N-channel MOSFET switch channels, each capable of operating within a wide input voltage range of 0.8V to 5.5V and supporting a maximum continuous current output of 4A. The TPS22968DPUR's ultra-low on-resistance (typical value of 25mΩ) significantly reduces power loss and enhances system efficiency.

TPS22968DPUR Specifications:

Type: Load Switch

Number of Outputs: 2 outputs

Output Current: 4 A

On-Resistance - Maximum: 36 mΩ

On-Time - Maximum: 1.128 milliseconds

Off-Time - Maximum: 5 microseconds

Operating Supply Voltage: 800 millivolts to 5.5 volts

Minimum Operating Temperature: -40°C

Maximum Operating Temperature: +105°C

TPS22968DPUR Core Technology and Electrical Characteristics:

1. Ultra-low On-Resistance and High-Efficiency Design

The most prominent technical advantage of the TPS22968DPUR lies in its ultra-low on-resistance characteristics. Under typical operating conditions (VBIAS=5V), the device demonstrates exceptional on-resistance performance:

VIN = 5V: RON = 27mΩ

VIN = 3.3V: RON = 25mΩ

VIN = 1.8V: RON = 25mΩ

This low impedance characteristic minimises voltage drop and thermal loss during power distribution, making the TPS22968DPUR particularly suitable for applications with stringent efficiency requirements.

2. Wide voltage range and flexible configuration

The TPS22968DPUR supports a wide input voltage range (0.8V–5.5V) and VBIAS voltage range (2.5V–5.5V), enabling it to adapt to various power architectures, including single-cell lithium-ion battery (1S) power systems. This flexibility makes it an ideal choice for portable devices and battery-powered applications.

The TPS22968DPUR device features a dual independent control channel design, with each switch controlled by dedicated ON/OFF inputs (ON1 and ON2), enabling direct interfacing with 1.2V, 1.8V, 2.5V, and 3.3V logic levels without the need for additional level-shifting circuits, simplifying system design.

3. Advanced protection and control features

The TPS22968DPUR integrates multiple intelligent protection and control features to enhance system reliability:

Configurable rise time: Adjusts the voltage rise slope during switch turn-on via an external capacitor, effectively suppressing inrush current

Quick Output Discharge (QOD): An internal 270Ω on-chip load resistor rapidly discharges the output capacitor when the switch is turned off, preventing output float

ESD Protection: Complies with JEDEC standards, supporting 2kV HBM (Human Body Model) and 1kV CDM (Component Discharge Model)

Thermal Performance Optimisation: Uses a WSON-14 package with an integrated heat sink, supporting high power dissipation

4. Low power consumption characteristics

In terms of energy efficiency, the TPS22968DPUR performs exceptionally well:

Extremely low static current: Only 55μA (dual channel) at VBIAS=5V

Ultra-low standby current: 0.5μA (spec value)

These characteristics make it particularly suitable for power-sensitive portable and battery-powered devices.

5. Package design and thermal management

The TPS22968DPUR adopts the WSON-14 package (also known as the DPU package), a compact, space-saving package format measuring just 3.5mm × 4.5mm with a height of 0.8mm, making it ideal for space-constrained applications.

A key innovation of this package is the integration of a thermal pad, which optimises heat conduction pathways and significantly enhances the device's power handling capability. In a natural ventilation environment, the TPS22968DPUR can operate stably over a wide temperature range of -40°C to +105°C, meeting the stringent requirements of industrial and automotive applications.

Typical application scenarios for the TPS22968DPUR:

1. Computing and consumer electronics

Ultrabooks™ and laptops: Used for power rail allocation and management, supporting fast wake-up and low-power standby modes

Tablets: Managing multiple power domains to optimise battery life

Smart home devices: Controlling power to various sensors and peripheral devices for precise power management

2. Communication and Network Equipment

Set-top boxes and gateway devices: Provide independent power control for different functional modules

Telecom systems: Manage the power supply sequencing of multiple functional units on the board

5G small cells: Achieve efficient and reliable power distribution

3. Industrial and automotive electronics

Industrial automation control systems: Provide controlled power to sensors and actuators

In-vehicle infotainment systems: Manage the power status of multiple functional modules

Battery management systems (BMS): Achieve precise power distribution and protection

4. Medical and test equipment

Portable medical devices: Ensure reliable power supply to critical circuits

Test and measurement instruments: Provide clean power switching to avoid test interference