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MP29373 4.75-23V, 1.5A, 1.4MHz Step-Down Converter TSSOP20
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pMPS MP29373 — step-down converter, 4.75-23V input, 1.5A output, 1.4 MHz, TSSOP20./p
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MP29373 4.75-23V, 1.5A, 1.4MHz Step-Down Converter TSSOP20
MPS MP29373 is a step-down converter that accepts 4.75 V to 23 V input, delivers 1.5 A, switches at 1.4 MHz, supplied in a TSSOP20 package.
Key Specifications
| Part Number | MP29373 |
| Input Voltage | 4.75 V to 23 V |
| Output Current | 1.5 A |
| Switching Frequency | 1.4 MHz |
| Topology | Step-Down Converter |
| Package | TSSOP20 |
| Ordering Codes | MP29373 |
Features
- 1.5A Current for Each Output
- 0.18Ω Internal Power MOSFET Switches
- Stable with Low ESR Output Ceramic Capacitors
- Up to 90% Efficiency
- 40μA Shutdown Mode
- Fixed 1.4MHz Frequency
- Thermal Shutdown
- Cycle-by-Cycle Over Current Protection
- Wide 4.75V to 23V Operating Input Range
- Each Output Adjustable from 0.92V to 16V
Applications
- Distributed Power Systems
- I/O and Core supplies
- DSL Modems
- Set top boxes
- Cable Modems "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.
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 TSSOP20 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP29373?
4.75–23 V input and 1.5 A output.
What switching frequency does the MP29373 run at?
1.4 MHz, programmable.
Which package is the MP29373 available in?
TSSOP20.
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