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MP2319 4.5-18V, 3A, 650kHz Step-Down Converter TSOT23
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pMPS MP2319 — step-down converter, 4.5-18V input, 3A output, 650 kHz, TSOT23./p
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MP2319 4.5-18V, 3A, 650kHz Step-Down Converter TSOT23
MPS MP2319 is a step-down converter that accepts 4.5 V to 18 V input, delivers 3 A, switches at 650 kHz, supplied in a TSOT23 package.
Key Specifications
| Part Number | MP2319 |
| Input Voltage | 4.5 V to 18 V |
| Output Current | 3 A |
| Switching Frequency | 650 kHz |
| Topology | Step-Down Converter |
| Package | TSOT23 |
| Ordering Codes | MP2319 |
Features
- Wide 4.5V to 18V Operating Input Range
- 3A Output Current
- 105mΩ/57mΩ Low RDS(ON) Internal Power MOSFETs
- Output Adjustable from 0.8V
- EN Shutdown Output Discharge
- Internal Soft Start
- High-Efficiency Synchronous Mode Operation
- Fixed 650kHz Switching Frequency
- EN and Power Good for Power Sequencing
- Over-Current Protection (OCP) and Hiccup
Applications
- Security Cameras
- Portable Devices, 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 TSOT23 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2319?
4.5–18 V input and 3 A output.
What switching frequency does the MP2319 run at?
650 kHz.
Which package is the MP2319 available in?
TSOT23.
Shenzhen Gaorunxin Technology Co., Ltd
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