Power management chip TMI3191 directly addresses the pain points of smart wearable power supply

Anxiety in a “small space”

To meet the needs of users, smart wearable devices integrate more and more sensors and applications, and power consumption increases dramatically. At the same time, for fashion requirements, the battery size of the device should be as small as possible, but the battery life should be as long as possible. Otherwise, no matter how cool the device is, the inconvenience of "charging once a day" (find components on Weiyang Mall) will make it a decoration for the bedside table drawer. Therefore, the power management of smart wearable devices faces considerable challenges. How to design the circuit within a very small size while meeting the needs of long battery life? In addition, smart wearable devices are worn on the body for a long time, so the safety of their power supply cannot be ignored, and various protection measures need to be considered.

TMI3191 hits the pain points directly!

Faced with various difficulties in the field of smart wearables, Toulwei continues to invest in innovative research and independently develops a nA-level ultra-low static power consumption synchronous buck converter TMI3191, with a static power consumption as low as 400nA, providing a safe and reliable optimal power consumption control system for wearable devices.

TMI3191 - Low power, small package, high efficiency synchronous buck converter:

◆ Input voltage range: 1.8V to 5.5V

◆ Efficiency up to 90% (@0.1mA)

◆ 1.5MHz switching frequency

◆ Ultra-low quiescent current: 400nA (typ)

◆ Output current up to 1A

◆Fixed output voltage, saving peripheral components:

1.0V/1.2V/1.5V/1.8V/2.5V/2.8V/3.0V/3.3V

◆ Can work in 100% duty cycle mode

◆ Over temperature protection

◆ Inrush current limiting and soft start

◆ Ultra-small package DFN-1.5×2-6L, meeting the requirements of smart wearable design

TMI3191 efficiency curve

The future is here, and Toerwei has great potential

Smart wearable devices must not only ensure accurate data measurement and a comfortable device experience, but also achieve sustainability and complete supporting services, making smart wearable devices a necessity in people’s daily life and work.