Maxim Introduces MAX20310 Ultra-Low Quiescent Current (IQ) Power Management IC

Maxim introduces the MAX20310 ultra-low quiescent current (IQ) power management integrated circuit (PMIC), which supports primary battery-powered wearable and fitness product designs with a 50% reduction in solution size to extend battery life. Wearable products' PMICs need to support input voltages as low as 0.7V for new high energy density battery architectures such as zinc-air or silver oxide batteries, as well as the growing popularity of alkaline battery architectures. As the market for personal and remote monitoring needs is driven, reducing solution size and extending battery life are critical factors. For example, a report by Allied Market Research shows that the global telemonitoring market is expected to reach a CAGR of 17% and will reach a market size of $2.13 billion in 2022.

There are many factors to consider when designing wearable medical and fitness applications, including ultra-small sizes and longer battery life. However, designers often need to build discrete power networks using discrete components, which can take up valuable board space, consume high quiescent current, and deplete battery life when the device is in sleep mode. In the clinical setting, the design challenges are further exacerbated by the fact that the contacts, fixtures and charging ports involved in the rechargeable solution are prone to bacteria.

The MAX20310 features an innovative single-inductor multi-output (SIMO) architecture that integrates four power supply outputs with a single inductor, each with ultra-low quiescent current. Compared to traditional discrete solutions, this highly integrated solution reduces the size by half and reduces quiescent current by more than 40%, extending battery life. In a clinical setting, the galvanic cell structure forms a tightly sealed unit that can be safely sterilized or even thoroughly cleaned before each use to prevent cross-contamination between patients. The MAX20310 is ideal for non-rechargeable medical devices, environmental and device monitoring, and industrial Internet of Things (IIoT) sensors. The MAX20310 operates over the -40°C to +85°C temperature range and is available in a small 1.63mm x 1.63mm wafer level package (WLP).

Relevant MAX20 series products

Author：Brittany Antonia （The author of article owns the copyright.）