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MP8853 2.85-18V, 4A Step-Down Converter QFN-14
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pMPS MP8853 — step-down converter, 2.85-18V input, 4A output, QFN-14./p
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MP8853 2.85-18V, 4A Step-Down Converter QFN-14
MPS MP8853 is a step-down converter that accepts 2.85 V to 18 V input, delivers 4 A, supplied in a QFN-14 package.
Key Specifications
| Part Number | MP8853 |
| Input Voltage | 2.85 V to 18 V |
| Output Current | 4 A |
| Topology | Step-Down Converter |
| Package | QFN-14 |
| Ordering Codes | MP8853 |
Features
- Wide 2.85V to 18V Operating Input Voltage (VIN) Range
- 4A of Continuous Output Current (IOUT)
- 1% Internal Reference Accuracy
- I2C-Configurable Reference Voltage (VREF) Range from 0.6V to 1.108V in 4mV Steps with Slew Rate Control
- Default Forced Pulse-Width Modulation (PWM) Mode
- Selectable Pulse-Frequency Modulation (PFM)/PWM Mode via the I2C
- Adjustable Switching Frequency (fSW) and Current Limit via the I2C
- 16 Selectable I2C Addresses
- Internal Soft Start (SS)
- Open-Drain Power Good (PG) Indication
Applications
- Solid-State Drives (SSDs)
- Flat-Panel Televisions and Monitors
- Digital Set-Top Boxes
- 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.
- Package QFN-14 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP8853?
2.85–18 V input and 4 A output.
Which package is the MP8853 available in?
QFN-14, with ordering codes MP8853GQ-Z.
Shenzhen Gaorunxin Technology Co., Ltd
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