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MAX77650/MAX77651 PMIC
Analog Devices' highly integrated ultra-low power PMIC with 3-output SIMO and charger optimized for small Li+ battery charging
Analog Devices' MAX77650AEWV+ and MAX77651AEWV+ are a highly integrated battery charging and power supply solutions. These chips were designed for low power, wearable applications in which size and efficiency are important. Both devices feature a single inductor, multiple output (SIMO) buck-boost regulator that provides three independently programmable power rails from one single inductor. This allows users to minimize the total solution size.
A 150 mA LDO provides ripple rejection for noise sensitive applications including audio. The ICs include battery temperature monitoring, current sinks for driving LED indicators, and an analog multiplexer that switches several internal voltage and current signals to an external node for monitoring with an external ADC. The bidirectional I2C interface allows users to configure and check the status of the device.
SIMO Switching Regulators Extending Battery Life for Hearables and Wearables
DS26 Hearables Get Longer Life with SIMO
- Highly integrated
- Smart power selector™ Li+/Li-Poly charger
- 3-output, SIMO buck-boost regulator
- 150 mA LDO
- 3-channel current sink driver
- Analog MUX output for power monitoring
- Flexible and configurable
- I2C compatible interface and GPIO
- Factory OTP options available
- Low power
- 0.3 µA standby current
- 5.6 µA operating current (3 SIMO channels + LDO)
- Charger optimized for small battery size
- Programmable fast-charge current from 7.5 mA to 300 mA
- Programmable battery regulation voltage from 3.6 V to 4.6 V
- Programmable termination current from 0.375 mA to 45 mA
- JEITA battery temperature monitors adjust charge current and battery regulation voltage for safe charging
- Small size
- 2.75 mm x 2.15 mm x 0.7 mm WLP package
- 30-bump, 0.4 mm pitch WLP, 6 x 5 array
- Small total solution size (19.2 mm2)
- Bluetooth headphones/wearables
- Fitness, health, and activity monitors
- Internet of Things (IoT)
- Portable devices
PMICs
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
 |  | MAX77650AEWV+T | IC BATT CHG LI-ION 1CELL 30WLP | 998 - Immediate | $51.20 | View Details |
| | MAX77651AEWV+ | IC BATT CHG LI-ION 1CELL 30WLP | 0 - Immediate | See Page for Pricing | View Details |
Eval Kits
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | MAX77650EVKIT# | EVAL BOARD FOR MAX77650 | 1 - Immediate 3 - Factory Stock | $982.32 | View Details |
|  | MAX77651EVKIT# | EVAL BOARD FOR MAX77651 | 2 - Immediate 11 - Factory Stock | $982.32 | View Details |
Hong Kong, China