Welcome to our company!
MP4559 3.8-55V, 1.5A, 2MHz Step-Down Converter QFN10
Share
pMPS MP4559 — step-down converter, 3.8-55V input, 1.5A output, 2 MHz, QFN10./p
- Product Details
- Download
MP4559 3.8-55V, 1.5A, 2MHz Step-Down Converter QFN10
MPS MP4559 is a step-down converter that accepts 3.8 V to 55 V input, delivers 1.5 A, switches at 2 MHz, supplied in a QFN10 package.
Key Specifications
| Part Number | MP4559 |
| Input Voltage | 3.8 V to 55 V |
| Output Current | 1.5 A |
| Switching Frequency | 2 MHz |
| Quiescent Current | 140 uA |
| Topology | Step-Down Converter |
| Package | QFN10 |
| Ordering Codes | MP4559 |
Features
- Wide 3.8V to 55V Operating Input Range
- 250mΩ Internal Power MOSFET
- Up to 2MHz Programmable Switching Frequency
- 140μA Quiescent Current
- Ceramic Capacitor Stable
- Internal Soft-Start
- Up to 95% Efficiency
- Output Adjustable from 0.8V to 52V
- Available in QFN (3mm x 3mm) and SOIC8E with Exposed Pad Packages
Applications
- High Voltage Power Conversion
- Automotive Systems
- Industrial Power Systems
- Distributed Power Systems
Design Notes
- The step-down topology needs an inductor and output capacitor sized for the ripple at the switching frequency, not just the DC load.
- Keep the input loop short — high di/dt at the switch node sets conducted EMI.
- Power switches are integrated, so the thermal path is the PCB copper under the pad.
- AEC-Q100 qualification suits this part to automotive rails.
- Package QFN10 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP4559?
3.8–55 V input and 1.5 A output.
What switching frequency does the MP4559 run at?
2 MHz, programmable.
Which package is the MP4559 available in?
QFN10.
Shenzhen Gaorunxin Technology Co., Ltd
Online message
Shenzhen Gaorunxin Technology Co., Ltd
