company blog about TI TPS22990NDMLR Single-Channel On-Resistance Load Switch

TI TPS22990NDMLR Single-Channel On-Resistance Load Switch

Shenzhen Mingjiada Electronics Co., Ltd., as a leading domestic supplier of electronic components, has long specialised in supplying the TI TPS22990NDMLR product. The TPS22990NDMLR is a high-performance single-channel on-resistance load switch specifically designed to meet the intelligent power management requirements of modern electronic systems.

Product Overview Of TPS22990NDMLR

TPS22990NDMLR device is a 3.9-mΩ, single-channel load switch with a controlled and adjustable turn on and integrated PG indicator.

TPS22990NDMLR devices contain an N-channel MOSFET that can operate over an input voltage range of 0.6 V to 5.5 V and can support a maximum continuous current of 10 A. The wide input voltage range and high current capability enable the devices to be used across multiple designs and end equipments. 3.9-mΩ On-resistance minimizes the voltage drop across the load switch and power loss from the load switch.

The controlled rise time for the TPS22990NDMLR device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power supply droop. The adjustable slew rate through CT provides the design flexibility to trade off inrush current and power up timing requirements. Integrated PG indicator notifies the system about the status of the load switch to facilitate seamless power sequencing.

TPS22990NDMLR has an optional 218-Ω On-chip resistor for quick discharge of the output when switch is disabled to avoid any unknown state caused by floating supply to the downstream load.

TPS22990NDMLR is available in a small, space-saving 3-mm × 2-mm 10-SON package with integrated thermal pad allowing for high power dissipation. The TPS22990NDMLR device is characterized for operation over the free-air temperature range of –40°C to +105°C.

Utilising advanced semiconductor technology, the TPS22990NDMLR features ultra-low on-resistance, fast switching response, and multiple protection functions, making it an ideal choice for power management in portable devices, industrial control systems, and consumer electronics.

As a representative product in the load switch field, the TPS22990NDMLR serves as an ‘intelligent power gate’ in modern electronic systems. It not only precisely controls power on/off but also provides advanced functions such as surge current suppression, power sequencing, and status monitoring, effectively enhancing system energy efficiency and reliability.

Features Of TPS22990NDMLR

Ultra-low on-resistance: The TPS22990NDMLR features a typical on-resistance of just 16 mΩ (at VBIAS = 5 V and VIN = 3.3 V), significantly reducing power loss and improving system efficiency.

Wide input voltage range: The TPS22990NDMLR supports an input voltage range of 1.05 V to 5.5 V, making it suitable for a variety of power supply environments.

Quick Output Discharge (QOD) Function: When the switch is disabled, the built-in discharge resistor can quickly discharge the output capacitor (typical value 218Ω), preventing the provision of floating power to downstream loads and avoiding unknown states. This feature is particularly important in applications requiring rapid shutdown or frequent power switching.

Configurable rise time control: The TPS22990NDMLR allows flexible adjustment of the rise time via an external capacitor, effectively suppressing inrush current and protecting sensitive loads.

Multiple protection mechanisms: The TPS22990NDMLR integrates overcurrent protection, over-temperature protection, and under-voltage lockout (UVLO) functions to ensure safe operation under various abnormal conditions.

Small package options: The TPS22990NDMLR uses a miniature package (e.g., 1.5mm × 1.5mm SON-6), saving PCB space and making it suitable for space-constrained portable devices.

Application Of TPS22990NDMLR

Consumer electronics:

Power management for smartphones and tablets

Power distribution for wearable devices

Power control for digital cameras and portable gaming consoles

Industrial control systems:

Power management for PLC modules

Power switching for sensor interface circuits

Power distribution for industrial automation equipment

Communication equipment:

Power management for routers and switches

Power control for 5G small cells

Power distribution systems for network equipment

Automotive electronics:

Power management for in-vehicle infotainment systems

Power switching for body control modules

Power distribution for ADAS (Advanced Driver Assistance Systems)