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MP2227 3-24V, 3A, 1.3MHz Synchronous Step-Down Converter QFN10
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pMPS MP2227 — Synchronous Step-Down Converter, 3-24V input, 3 A output, QFN10./p
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MP2227 3-24V, 3A, 1.3MHz Synchronous Step-Down Converter QFN10
The MPS MP2227 is a Synchronous Step-Down Converter. It operates from a 3 V to 24 V input, is rated for 3 A and switches at 1.3 MHz. It is supplied in a QFN10 package.
The MP2227 is an internally compensated 1.3MHz fixed frequency PWM synchronous step-down regulator.
Key Specifications
| Part Number | MP2227 |
| Function | Synchronous Step-Down Converter |
| Input Voltage | 3 V to 24 V |
| Current Rating | 3 A |
| Switching Frequency | 1.3 MHz |
| Interface | PWM |
| Peak Efficiency | 95% |
| Package | QFN10 |
| Ordering Codes | MP2227 |
Features
- 3A Output Current
- Input Supply Range: 3V to 24V
- 160mΩ high-side, 80mΩ low-side Internal Power MOSFET Switches
- All Ceramic Output Capacitor Design
- Up to 95% Efficiency
- 1.3MHz Fixed Switching Frequency
- Adjustable Output from 0.8V to 0.9xVIN
- Internal LDO for VCC supply
- 1MHz to 2MHz Frequency Synchronization
- Thermal Shutdown
Typical Application Circuit
Applications
- µP/ASIC/DSP/FPGA Core and I/O Supplies
- Printers and LCD TVs
- Network and Telecom Equipment
Design Notes
- Size the inductor for the ripple current at the actual switching frequency, typically 30% of the DC load — not for the DC rating alone.
- The hot loop from input capacitor through the switch to ground sets conducted EMI. Keep that copper area as small as the layout allows.
- Output ripple is set by the capacitor ESR and its DC-bias derating; a 10 µF ceramic often behaves like 4 µF at the rated output voltage.
- Route the feedback divider from the output capacitor terminals, away from the switch node.
Common Questions
What input voltage does the MP2227 support?
3 V to 24 V. The rated output is 3 A.
Which package and ordering codes apply to the MP2227?
QFN10; order codes include MP2227.
What are the defining features of the MP2227?
3A Output Current Input Supply Range: 3V to 24V
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