MAX14690
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MAX14690

PMIC with Ultra-Low IQ Voltage Regulators and Battery Charger for Small Lithium Ion Systems

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Extends Battery Life of Wearable Electronics

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Info: : PRODUCTION tooltip
Part Details
Part Models 10
1ku List Price Starting From $2.87
Features
  • Extend System Use Time Between Battery Charging
    • Dual Ultra-Low-IQ 200mA Buck Regulators
      • Output Programmable from 0.8V to 1.8V and 1.5V to 3.3V
      • 0.9µA (typ) Quiescent Current
      • Automatic Burst or Forced-PWM Modes
    • Three Ultra-Low-IQ 100mA LDOs
      • Output Programmable from 0.8V to 3.6V
      • 0.6µA (typ) Quiescent Current
      • 2.7V to 5.5V Input with Dedicated Pin
  • Easy-to-Implement Li+ Battery Charging
    • Smart Power Selector
    • 28V/-5.5V Tolerant Input
    • Thermistor Monitor
  • Minimize Solution Footprint Through High Integration
    • Provides Five Regulated Voltage Rails
    • Switch Mode Option on Each LDO
  • Optimize System Control
    • Monitors Pushbutton for Ultra-Low Power Mode
    • Power-On Reset Delay and Voltage Sequencing
    • On-Chip Voltage Monitor Multiplexer
Additional Details
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The MAX14690 is a battery-charge-management solution ideal for low-power wearable applications. The device includes a linear battery charger with a smart power selector and several power-optimized peripherals. The MAX14690 features two ultra-low-power buck regulators with a typical quiescent current of 900nA. In addition, three ultra-low power low-dropout (LDO) linear regulators, with a typical quiescent current of 600nA are included. In total, the MAX14690 can provide up to five regulated voltages, each with an ultra-low quiescent current, critical to battery life for the unique power profile in 24/7 operation devices, such as those in the wearable market.

The battery charger features a smart power selector that allows operation on a dead battery when connected to a power source. To avoid overloading a power adapter, the input current to the smart power selector is limited based on an I2C register setting. If the charger power source is unable to supply the entire system load, the smart power control circuit supplements the system load with current from the battery.

The two synchronous, high-efficiency step-down buck regulators feature a fixed-frequency PWM mode for tighter regulation and a burst mode for increased efficiency during light-load operation. The output voltage of these regulators can be programmed through I2C with the default preconfigured.

The three configurable LDOs each have a dedicated input pin. Each LDO regulator output voltage can be programmed through I2C with the default preconfigured. The linear regulators can also be configured to operate as power switches that may be used to disconnect the quiescent load of the system peripherals.

The MAX14690 features a programmable power controller that allows the device to be configured for applications that require the device be in a true-off, or always-on, state. The controller also provides a delayed reset signal and voltage sequencing.

The MAX14690 is available in a 36-bump, 0.4mm pitch, 2.72mm x 2.47mm wafer-level package (WLP).

Applications

  • Fitness Monitors
  • Portable Medical Devices
  • Wearable Electronics
Part Models 10
1ku List Price Starting From $2.87

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

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Sep 20, 2017

- 1736

TEST

MAX14690AEWX+

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Oct 7, 2016

- 1600

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MAX14690NEWX+

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Jul 19, 2016

- 1594_AMENDED

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Dec 8, 2015

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WAFER FAB

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Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Sep 20, 2017

- 1736

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TEST

MAX14690AEWX+

PRODUCTION

MAX14690AEWX+T

PRODUCTION

MAX14690CEWX+

LAST TIME BUY

MAX14690CEWX+T

LAST TIME BUY

MAX14690HEWX+

PRODUCTION

MAX14690HEWX+T

PRODUCTION

MAX14690JEWX+

PRODUCTION

MAX14690JEWX+T

LAST TIME BUY

MAX14690NEWX+

PRODUCTION

MAX14690NEWX+T

PRODUCTION

Oct 7, 2016

- 1600

arrow down

ASSEMBLY

MAX14690AEWX+

PRODUCTION

MAX14690AEWX+T

PRODUCTION

MAX14690CEWX+

LAST TIME BUY

MAX14690CEWX+T

LAST TIME BUY

MAX14690HEWX+T

PRODUCTION

MAX14690JEWX+

PRODUCTION

MAX14690JEWX+T

LAST TIME BUY

MAX14690NEWX+

PRODUCTION

Jul 19, 2016

- 1594_AMENDED

arrow down

ASSEMBLY

MAX14690AEWX+T

PRODUCTION

MAX14690CEWX+T

LAST TIME BUY

Dec 8, 2015

- 1594_PRE-PCN

arrow down

WAFER FAB

MAX14690AEWX+T

PRODUCTION

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LAST TIME BUY

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX14690EVKIT

Evaluation Kit for the MAX14690

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MAX14690EVKIT

Evaluation Kit for the MAX14690

Evaluation Kit for the MAX14690

Features and Benefits

  • RoHS Compliant
  • Proven PCB Layout
  • Full Assembled and Tested
  • I2C Serial Interface

Product Detail

The MAX14690 evaluation kit (EV kit) is a fully assembled and tested circuit for evaluating the MAX14690 wearable charge-management solution with I2C capability for lowpower wearable application. The device includes a linear battery charger, Smart Power Selector™, two ultra-low quiescent current buck regulators, and three low-dropout (LDO) linear regulators.

Refer to the MAX14690 IC data sheet for detailed information regarding the operation and features of the devices.

Applications

  • Fitness Monitors
  • Portable Medical Devices
  • Wearable Electronics

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