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MP8774C 3-18V, 12A, 1.4MHz Step-Down Converter QFN-16
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pMPS MP8774C — step-down converter, 3-18V input, 12A output, 1.4 MHz, QFN-16./p
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MP8774C 3-18V, 12A, 1.4MHz Step-Down Converter QFN-16
MPS MP8774C is a step-down converter that accepts 3 V to 18 V input, delivers 12 A, switches at 1.4 MHz, supplied in a QFN-16 package.
Key Specifications
| Part Number | MP8774C |
| Input Voltage | 3 V to 18 V |
| Output Current | 12 A |
| Switching Frequency | 1.4 MHz |
| Quiescent Current | 100 uA |
| Topology | Step-Down Converter |
| Package | QFN-16 |
| Ordering Codes | MP8774C |
Features
- Fixed 1.4MHz Switching Frequency (fSW)
- Forced Continuous Conduction Mode (FCCM)
- Output Adjustable from 0.6V
- Wide 3V to 18V Operating Input Voltage (VIN) Range
- 12A Output Current (IOUT)
- 16mΩ/5.5mΩ Low On Resistance, Internal Power MOSFETs
- 100μA Quiescent Current (IQ)
- High-Efficiency Synchronous Mode
- Pre-Biased Start-Up
- Configurable External Soft-Start Time (tSS)
Applications
- Security Cameras
- AP Routers and xDSL Devices
- Digital Set-Top Boxes
- Flat-Panel Televisions and Monitors
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-16 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP8774C?
3–18 V input and 12 A output.
What switching frequency does the MP8774C run at?
1.4 MHz.
Which package is the MP8774C available in?
QFN-16, with ordering codes MP8774CGQ-Z.
Shenzhen Gaorunxin Technology Co., Ltd
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