Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

The MAX20303EEWN is (Maxim) 's power management solution for wearable devices designed for extended battery life and optimized space. The following are its core features:

Extend the battery charging interval

Two tiny IQ Buck regulators (each less than 1µA IQ (typical value))

220mA output

Buck1:0.8V to 2.375V, 25mV step size

Buck2:0.8V to 3.95V, 50mV step size

Micro IQ LV LDO/ load switch (1µA IQ (typical value))

Input voltage: 1.16V to 2.0V

50mA output

Output: 0.5V to 1.95V, step size: 25mV

Micro IQ LDO/ load switch (1µA IQ (typical value))

Input voltage: 1.71V to 5.5V

100mA output

0.9V to 4V, with a step size of 100mV

Tiny IQ rise/fall regulator (1.3µA IQ (typical value))

250mW output

2.5V to 5V, 100mV step size

Easy-to-implement Li+ battery charging

A wide range of fast charging currents: 5mA to 500mA

Intelligent power selector

28V/-5.5V tolerance input

Programmable JEITA current/voltage characteristics

Highly integrated, minimizing the occupied area of the solution to the greatest extent

Safely output LDO

At 15mA, when CHGIN appears

5V or 3.3V

Tactile driver

ERM/LRA drive with fast startup and disconnection

Automatic resonance tracking (LRA only)

Support wide-range display options

Tiny IQ Boost Regulator (2.4µA IQ(typical value))

300mW output

5V to 20V, 250mV step size

Three channels of current inflow source

20V tolerance

Programmable from 0.6 to 30mA

Optimize system control

Power-on/reset controller

Programmable key controller

Programmable power supply sorting

Factory preservation mode

On-chip voltage monitoring circuit multiplexer and analog-to-digital converter (ADC)

The MAX20303EEWN includes a complete battery management solution, including battery sealing, chargers, power paths and battery gauges. The charger has built-in thermal management and input protection. The MAX20303EEWN features 56 solder balls, 0.5mm solder ball pitch, 3.71mm x 4.21mm, wafer-level packaging (WLP), and operates within an extended temperature range of -40°C to +85°C.

Application scenarios

The MAX20303EEWN is suitable for wearable devices (such as smartwatches, TWS headphones, etc.), Internet of Things devices and space-constrained electronic systems, reducing PCB footprint through a highly integrated solution. ‌

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.