7GL-Z | MPS American Core Source System | Fully Integrated High-Frequency Synchronous Step-Down DC-DC Converter (Buck Power Chip) MP9447GL-Z.png Core parameters Input voltage: 4.5V ~ 36V (wide voltage range, compatible with 24V industrial busbar and on-board 12V/24V systems) Continuous output current: 5A Output voltage: 0.8V ~ 0.9×VIN (up to 32.4V), adjustable with external resistor Built-in MOSFET: High-side 65mΩ, low-side 30mΩ, no external power transistor required Reference accuracy: ±1.5% Switching frequency: 200kHz ~ 650kHz (set by external resistor) Junction temperature range: -40℃ ~ +125℃ (industrial grade) Package: QFN-25 (3×4mm), small-sized surface mount; -Z = tape and reel packaging Compliance: RoHS lead-free Main functions Synchronous Buck converter: It steps down high voltage input to low voltage output. Compared to asynchronous diode solutions, the synchronous architecture offers higher conversion efficiency and lower heat generation. Fast transient response: Small voltage fluctuation during sudden load changes, suitable for loads sensitive to power supply ripple, such as MCUs and sensors (e.g., power supply for STM32H7 and IMU sensors). Programmable soft start: Controls the gradual increase of output voltage during power-on, suppresses the inrush current upon power-on, and protects the backend chips. Low dropout LDO mode: When the input voltage approaches the output voltage, it automatically enters low dropout operation to ensure stable voltage regulation. Scope of Application industrial equipment 24V industrial system step-down, supplying power to MCU, sensors, IMU, and acquisition board Industrial controller, servo auxiliary power supply, portable detection instrument Embedded Systems & Robotics AGV and mobile robot on-board power supplies convert 12V/24V to 5V/3.3V to power the main controller (such as STM32H7) and sensor module Power supply for drones and motion control boards Consumption and on-board non-automotive standards USB power supply, charger, car cigarette lighter adapter (not AEC-Q100 automotive grade, cannot be used in automotive safety-grade projects) Communication equipment, security surveillance mainboard power supply Complete protection mechanism: OCP (Over Current Protection), SCP (Short Circuit Protection) UVP (Under Voltage Protection) lockout, OTP (Over Temperature Protection) shutdown Fewer peripheral components, streamlined BOM, and small PCB footprint. Drone flight control, electronic speed controller IC: MP9447GL-Z STM32F103CBT6 ICM-42607-P EFM8BB51F16G-C-QFN20R EFM8BB21F16G-C-QFN20R ICM-42670-P STM32H750VBT6 ICM-42688-P ICM-45686 ICM-20948 STM32H743VIT6 STM32F722RET6 STM32L476VET6 SA6288Q INA169NA/3K STM32G070KBT6 STM32F303RET6 W25Q64JVSSIQ W25Q256JVEIQ W25Q128JVPIQ For technical and business inquiries, please contact Mr. Zhang at 13430464310 0f6c2ac7e21d59ff1a2be9ac61b1c8a.jpg