Welcome to our company!
MP38891 4.5-30V, 6A, 420kHz Step-Down Converter QFN14
Share
pMPS MP38891 — step-down converter, 4.5-30V input, 6A output, 420 kHz, QFN14./p
- Product Details
- Download
MP38891 4.5-30V, 6A, 420kHz Step-Down Converter QFN14
MPS MP38891 is a step-down converter that accepts 4.5 V to 30 V input, delivers 6 A, switches at 420 kHz, supplied in a QFN14 package.
Key Specifications
| Part Number | MP38891 |
| Input Voltage | 4.5 V to 30 V |
| Output Current | 6 A |
| Switching Frequency | 420 kHz |
| Topology | Step-Down Converter |
| Package | QFN14 |
| Ordering Codes | MP38891 |
Features
- Wide 4.5V to 30V Operating Input Range
- 6A Output Current
- 50mΩ Internal Power MOSFET Switch
- Synchronizable Gate Driver Delivers up to 95% Efficiency
- Fixed 420kHz Frequency
- Synchronizable up to 1.4MHz
- Cycle-by-Cycle Over Current Protection
- Thermal Shutdown
- Output Adjustable from 0.8V to 15V
- Stable with Low ESR Output Ceramic Capacitors
Applications
- Digital Set Top Boxes
- Personal Video Recorders
- Broadband Communications
- Flat Panel Television and Monitors "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.
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.
- Package QFN14 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP38891?
4.5–30 V input and 6 A output.
What switching frequency does the MP38891 run at?
420 kHz.
Which package is the MP38891 available in?
QFN14.
Shenzhen Gaorunxin Technology Co., Ltd
Online message
Shenzhen Gaorunxin Technology Co., Ltd
