The Monolithic Power Systems MP4470GL-Z is a fully integrated, high-frequency synchronous step-down DC-DC converter designed to deliver up to 5A of continuous output current from a wide 4.5V to 36V input range. Its integrated power MOSFETs and compact architecture help reduce external component count in high-density power designs.
The MP4470GL-Z provides an adjustable output voltage from 0.8V to 0.9 × VIN and supports an adjustable 200kHz to 1MHz switching frequency. It integrates a 40mΩ high-side MOSFET and 20mΩ low-side MOSFET, providing efficient synchronous conversion with fast transient response and good line and load regulation.
Integrated functions include configurable soft start, low-dropout mode, short-circuit protection, over-current protection, under-voltage protection, latched over-voltage protection, and thermal shutdown. These features help improve power-system reliability during startup, overload, fault, and thermal conditions.
The MP4470GL-Z is supplied in a compact 20-pin QFN package measuring 3mm × 4mm. MPS currently lists the device as active. The Z suffix specifies reel size, while the P and Z versions use the same device; the Z version is supplied in 5,000-piece reels.
Key Features:
- Manufacturer: Monolithic Power Systems
- Part Number: MP4470GL-Z
- Family: MP4470
- Device Type: Synchronous Step-Down Converter
- Topology: Buck
- Input Voltage: 4.5V to 36V
- Continuous Output Current: 5A
- Adjustable Output: 0.8V to 0.9 × VIN
- Switching Frequency: 200kHz to 1MHz
- High-Side MOSFET: 40mΩ
- Low-Side MOSFET: 20mΩ
- Reference Accuracy: 1%
- Configurable Soft Start: Yes
- Low-Dropout Mode: Yes
- Short-Circuit Protection: Yes
- Over-Current Protection: Yes
- Latched Over-Voltage Protection: Yes
- Under-Voltage Protection: Yes
- Thermal Shutdown: Yes
- Package: QFN-20
- Package Size: 3mm × 4mm
- Mounting Type: Surface Mount
- Packaging: Tape & Reel
- Reel Quantity: 5,000 pcs
- Product Status: Active
- Lead-Free, Halogen-Free and RoHS Compliant.
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