PMIC. MAX77654 Datasheet

MAX77654 Datasheet PDF


Part

MAX77654

Description

Ultra-Low Power PMIC

Manufacture

Maxim Integrated

Page 30 Pages
Datasheet
Download MAX77654 Datasheet


MAX77654 Datasheet
EVALUATION KIT AVAILABLE
Click here for production status of specific part numbers.
MAX77654
Ultra-Low Power PMIC Featuring Single-
Inductor, 3-Output Buck-Boost, 2-LDOs, Power-
Path Charger for Small Li+, and Ship Mode
General Description
The MAX77654 provides highly-integrated battery charg-
ing and power supply solutions for low-power applications
where size and efficiency are critical. The IC features a
SIMO buck-boost regulator that provides three indepen-
dently programmable power rails from a single inductor to
minimize total solution size. Two 100mA LDOs provide rip-
ple rejection for audio and other noise-sensitive applica-
tions. The LDOs can also be configured as load switch-
es to manage power consumption by disconnecting exter-
nal blocks when not required. A highly-configurable linear
charger supports a wide range of Li+ battery capacities
and includes battery temperature monitoring for additional
safety (JEITA).
This device includes three GPIOs and an analog multi-
plexer that switches several internal voltage and current
signals to an external node for monitoring with an external
ADC. A bidirectional I2C serial interface allows for config-
uring and checking the status of the devices. An internal
on/off controller provides a controlled startup sequence for
the regulators and provides supervisory functionality while
they are on. Numerous factory programmable options al-
low the device to be tailored for many applications, en-
abling faster time to market.
Applications
● Bluetooth Headphones, Hearables
● Wireless Speakers
● Fitness, Health, and Activity Monitors
● Wearables
● Safety and Security Monitors
● Sensor Nodes
● Portable Consumer Devices
● Internet of Things (IoT)
Benefits and Features
● Highly Integrated
• 3x Output, Single-Inductor Multiple-Output (SIMO)
Buck-Boost Regulator
• Supports Wide Output Voltage Range from 0.8V
to 5.5V for all SIMO Channels
• 2x 100mA LDO/LSW
• Smart Power Selector™ Li+/Li-Poly Charger
• 3x GPIO Resources
• Analog MUX Output for Power Monitoring
• Factory Ship Mode (< 200nA IQ)
• Watchdog Timer
● Low Power
• 0.3μA Shutdown Current
• 6μA Operating Current (3 SIMO Channels + 2
LDOs)
● 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 and GPIO
• Factory OTP Options Available
● Small Size
• 6.52mm2 Wafer-Level Package (WLP)
• 30-Bump, 0.4mm Pitch, 6x5 Array
• Small Total Solution Size (29.7mm2)
Ordering Information appears at end of data sheet.
Smart Power Selector is a trademark of Maxim Integrated Products, Inc.
19-100560; Rev 1; 7/19

MAX77654 Datasheet
MAX77654
Simplified Block Diagram
Ultra-Low Power PMIC Featuring Single-Inductor,
3-Output Buck-Boost, 2-LDOs, Power-Path
Charger for Small Li+, and Ship Mode
VBUS
Li-Ion +
T
1.5µH
CHGIN
BATT
IN_SBB
SYS
GND
TBIAS
THM
IN_LDO0
IN_LDO1
SBB0
SBB1
SBB2
PGND
LXA
LXB GPIO0
BST VIO
LDO0/LSW0
MAX77654
LDO1/LSW1
VL
GPIO1
GPIO2
SDA
SCL
nEN
nRST
nIRQ
AMUX
*PULLUP RESISTORS NOT DRAWN
VSYS
2.05V
1.2V
3.3V
SYSTEM
RESOURCES
GPIO
1.85V
1.2V VIO/POWER
GPIO
GPIO
SDA
SCL
nRST
nIRQ
AMUX
APPLICATION
* PROCESSOR
*
*
*
ADC INPUT
www.maximintegrated.com
Maxim Integrated | 2


Features Datasheet pdf EVALUATION KIT AVAILABLE Click here for production status of specific part num bers. MAX77654 Ultra-Low Power PMIC F eaturing Single- Inductor, 3-Output Bu ck-Boost, 2-LDOs, Power- Path Charger for Small Li+, and Ship Mode General D escription The MAX77654 provides highly -integrated battery charging and power supply solutions for low-power applicat ions where size and efficiency are crit ical. The IC features a SIMO buck-boost regulator that provides three independ ently programmable power rails from a s ingle inductor to minimize total soluti on size. Two 100mA LDOs provide ripple rejection for audio and other noise-sen sitive applications. The LDOs can also be configured as load switches to manag e power consumption by disconnecting ex ternal blocks when not required. A high ly-configurable linear charger supports a wide range of Li+ battery capacities and includes battery temperature monit oring for additional safety (JEITA). Th is device includes three GPIOs and an analog multiplexer that s.
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