MAX14750
PRODUCTIONPower-Management Solution
Extend Battery Life of Wearable Electronics
- Part Models
- 6
- 1ku List Price
- Starting From $4.20
Overview
- Extended System Battery Use Time
- Micro-IQ 250mW Buck-Boost Regulator
- Input Voltage from 1.8V to 5.5V
- Output Voltage Programmable from 2.5V to 5V
- 1.1µA Quiescent Current
- Programmable Current Limit
- Micro-IQ 200mA Buck Regulator
- Input Voltage from 1.8V to 5.5V
- Output Voltage Programmable from 1.0V to 2.0V
- 0.9µA Quiescent Current
- Micro-IQ 100mA LDO
- Input Voltage From 1.71V to 5.5V
- Output Programmable From 0.9V to 4.0V
- 0. 9µA Quiescent Current
- Configurable as Load Switch
- Micro-IQ 250mW Buck-Boost Regulator
- Extend Product Shelf-Life
- Battery Seal Mode (MAX14720)
- 120nA Battery Current
- Power Switch On-Resistance
- 250mΩ (max) at 2.7V
- 500mΩ (max) at 1.8V
- Battery Impedance Detector
- Battery Seal Mode (MAX14720)
- Easy-to-Implement System Control
- Configurable Power Mode and Reset Behavior (MAX14720)
- Push-Button Monitoring to Enable Ultra-Low Power Shipping Mode
- Disconnects All Loads From Battery and Reduces Leakage to Less than 1µA
- Power-On Reset (POR) Delay and Voltage Sequencing
- Individual Enable Pins (MAX14750)
- Voltage Monitor Multiplexer
- I2C Control Interface
- Configurable Power Mode and Reset Behavior (MAX14720)
The MAX14720/MAX14750 are compact power-management solutions for space-constrained, battery-powered applications where size and efficiency are critical. Both devices integrate a power switch, a linear regulator, a buck regulator, and a buck-boost regulator.
The MAX14720 is designed to be the primary power-management device and is ideal for either non-rechargeable battery (coin-cell, dual alkaline) applications or for rechargeable solutions where the battery is removable and charged separately. The device includes a button monitor and sequencer.
The MAX14750 works well as a companion to a charger or PMIC in rechargeable applications. It provides direct pin control of each function and allows greater flexibility for controlling sequencing.
The devices include two programmable micro-IQ, high-efficiency switching converters: a buck-boost regulator and a synchronous buck regulator. These regulators feature a burst mode for increased efficiency during light-load operation.
The low-dropout linear regulator has a programmable output. It can also operate as a power switch that can disconnect the quiescent load of system peripherals.
The devices also include a power switch with battery-monitoring capability. The switch can isolate the battery from all system loads to maximize battery life when not operating. It is also used to isolate the battery-impedance measurements. This switch can operate as a general-purpose load switch as well.
The MAX14720 includes a programmable power controller that allows the device to be configured either for use in applications that require a true off state or for always-on applications. This controller provides a delayed reset signal, voltage sequencing, and customized button timing for on/off control and recovery hard reset.
Both devices also include a multiplexer for monitoring the power inputs and outputs of each function.
These devices are available in a 25-bump, 0.4mm pitch, 2.26mm x 2.14mm wafer-level package (WLP) and operate over the -40°C to +85°C extended temperature range.
Design Solution: How to Add ECG to Your Wearable Without Raising Your Heart Rate ›
Applications
- Portable Medical Devices
- Wearable Fitness Devices
- Wearable Medical Devices
Documentation
Data Sheet 1
User Guide 1
Technical Articles 2
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 |
|---|---|---|---|
| MAX14750AEWA+ | WLCSP | ||
| MAX14750AEWA+T | WLCSP | ||
| MAX14750BEWA+ | WLCSP | ||
| MAX14750BEWA+T | WLCSP | ||
| MAX14750CEWA+ | WLCSP | ||
| MAX14750CEWA+T | WLCSP |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Charger ICs 1 | ||
| MAX14676 | PRODUCTION | Wearable Charge Management Solution |
Evaluation Kits
Evaluation Kit for the MAX14720/MAX14750
Evaluation Board for MAX32625, MAX14750, MAX20336
Resources
Evaluation System for the MAX14720/MAX14750
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