MAX77278

PRODUCTION

Ultra-Low Power PMIC with 3-Output SIMO, Power Path Charger Optimized for Small Li+, 425mA Current Sink, and 8 GPIOs

Data Sheet (Rev. 3) Product Selection Table

Part Models: 2
1ku List Price: Starting From $2.86

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Part Details

Highly Integrated
- Smart Power Selector™ Li+/Li-Poly Charger
- Three Output, SIMO Buck-Boost Regulator
- 50mA LDO with SIMO Fixed Headroom Control
- Programmable 250mA to 425mA Current Sink Driver
- Analog MUX Output for Power Monitoring
- Eight GPIOs (Configured for One-Button Wake-Up and Two-Button Shutdown)
Low Power
- 0.3µA Standby Current
- 16µA Operating Current
Charger Optimized for Small Battery Size
- Programmable Fast-Charge Current from 7.5mA to 300mA
- Programmable Battery Regulation Voltage from 3.6V to 4.6V
- Programmable Termination Current from 0.375mA to 45mA
- JEITA Battery Temperature Monitors Adjust Charge Current and Battery Regulation Voltage for Safe Charging
Flexible and Configurable
- I²C-Compatible Interface
- Eight GPIOs
- Factory OTP Options Available
Small Size
- 3.15mm x 2.15mm x 0.7mm
- 35-Bump, 0.4mm-Pitch, 7x5 Ball Array, WLP
- Small Total Solution Size (24mm²)

Part Models: 2
1ku List Price: Starting From $2.86

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX77278EWB+	Wafer-Level Package 5x7 Bump, Full Array	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX77278EWB+T	Wafer-Level Package 5x7 Bump, Full Array	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 10, 2024 - 2349A WAFER FAB
		pcn_2349a
MAX77278EWB+	PRODUCTION
MAX77278EWB+T	PRODUCTION
Mar 27, 2023 - 2349 WAFER FAB
		pcn_2349
MAX77278EWB+	PRODUCTION
MAX77278EWB+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

Software Development 2

Evaluation Kits

Evaluation Kit for the MAX77278

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Features and Benefits

Easy to Use
- GUI Drives I²C Interface
- On-Board Thermistor
- IR LED
- GPIO Bank with Push-Buttons
- Assembled and Fully Tested
Emulates System Loading
- On-Board Electronic Load for LDO
- Electronic Load has Steady-State, Transient, and Random Modes
Demonstrates End-to-End Analog Multiplexer Implementation
- On-Board ADC
Evaluates Both Push-Button and Slider-Switch On-Key Options

Product Details

The MAX77278 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrates the MAX77278. The EV kit allows for easy evaluation of the various MAX77278 resources, including the linear charger, SIMO, linear regulator, analog multiplexer, IR current sink, GPIOs and I²C interface.

Windows-based software provides a user-friendly graphical interface (GUI) as well as a detailed register-based interface to exercise the features of the MAX77278.

Applications

Internet of Things (IoT)
Remote Controls
Wearables

Resources

MAX77278EVKIT BOM
5/22/2023

MAX77278EVKIT Board Layout - Design Files
6/1/2023

MAX77278EVKIT Schematic
6/2/2023

MAX77278EVKIT ODB File - Design Files
6/2/2023

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