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MP2223 4.5-18V, 2A, 540kHz Step-Down Converter TSOT23
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pMPS MP2223 — step-down converter, 4.5-18V input, 2A output, 540 kHz, TSOT23./p
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MP2223 4.5-18V, 2A, 540kHz Step-Down Converter TSOT23
MPS MP2223 is a step-down converter that accepts 4.5 V to 18 V input, delivers 2 A, switches at 540 kHz, supplied in a TSOT23 package.
Key Specifications
| Part Number | MP2223 |
| Input Voltage | 4.5 V to 18 V |
| Output Current | 2 A |
| Switching Frequency | 540 kHz |
| Topology | Step-Down Converter |
| Package | TSOT23 |
| Ordering Codes | MP2223 |
Features
- Wide 4.5V to 18V Operating Input Range
- 70mΩ/50mΩ for Ch1, 100mΩ/60mΩ for Ch2, Low RDS(ON) Internal Power MOSFETs
- Up to 3A (Ch1) and 2A (Ch2) Maximum Continuous Output Current
- 180° Out-of-Phase Operation
- Power-Save Mode for Light Load
- 540kHz Fixed Switching Frequency
- Over-Current Protection (OCP) and Hiccup
- Over-Voltage Protection (OVP )
- Thermal Shutdown
- Both Channel Outputs Adjustable from 0.8V
Applications
- Notebook Systems and I/O Power
- Digital Set-Top Boxes
- DSL Modems
- 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 TSOT23 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2223?
4.5–18 V input and 2 A output.
What switching frequency does the MP2223 run at?
540 kHz.
Which package is the MP2223 available in?
TSOT23.
Shenzhen Gaorunxin Technology Co., Ltd
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