Power-management IC integrates a linear single-cell Li-ion battery charger with programmable constant-current and constant-voltage charging. Three step-down converters, one buck-boost converter, and four LDO regulators provide multiple programmable system rails for low-power microcontroller applications. The charger supports up to 640 mA charge current, JEITA-compliant charging, input overvoltage protection, battery overcurrent protection, and thermal protection. The device uses a 1 MHz I2C-bus slave interface and operates over a -40 °C to +85 °C ambient temperature range. The package is a 49-terminal, 0.4 mm pitch WLCSP measuring 2.90 mm by 3.00 mm by 0.57 mm.
Checking distributor stock and pricing after the page loads.
| Device type | Power management IC for low-power microcontroller applications |
| Battery chemistry | Single-cell Li-ion |
| VIN tolerance | 26V |
| Charge current | Up to 640mA |
| Buck converters | 3 step-down DC/DC converters |
| SW1 output voltage range | 0.4 to 1.975V |
| SW1 output current | Up to 300mA |
| SW2 output voltage range | 0.4 to 3.4V |
| SW2 output current | Up to 500mA |
| SW3 output voltage range | 0.4 to 1.975V |
| SW3 output current | Up to 300mA |
| Buck-boost output voltage range | 1.8 to 5.0V |
| Buck-boost output current | Up to 500mA |
| LDO count | 4 |
| LDO1 output current | Up to 10mA |
| LDO2/LDO3/LDO4 output current | Up to 200 eachmA |
| I2C bus speed | 1MHz |
| Ambient temperature range | -40 to +85°C |
| Package dimensions | 2.90 x 3.00 x 0.57mm |
| Package pitch | 0.4mm |
These are design resources that include the NXP PCA9422
Application note for i.MX RT700 MCU implementing a MIPI DSI circular AMOLED display with PCA9422 PMIC, focusing on low-power mode implementation and evaluation.
Technical guide for configuring Deep Sleep and Async Deep Sleep modes on NXP i.MX RT700 MCUs, including power domain management, voltage requirements, and wake-up latency.
Application note detailing how to replicate datasheet power consumption data for i.MX RT700 HiFi4 and HiFi1 DSPs using the MIMXRT700-EVK evaluation board and SDK.
Guide for using Machine Learning-based PVT sensors on i.MX RT700 MCUs to optimize power consumption and extend battery life through automatic voltage scaling.
Learn how to use PVTS on NXP i.MX RT700 MCUs for automatic voltage scaling to optimize power consumption and extend battery life in low-power applications like wearables.
Learn how to implement a smartwatch UI with face detection on the NXP i.MX RT700 MCU using the LVGL graphics library, GUI Guider, and eIQ Neutron NPU for AI acceleration.
Guide for measuring i.MX RT700 power consumption on the MIMXRT700-EVK board using MCUXpresso SDK examples to replicate datasheet specifications.
