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MP2918 4-40V, 100kHz Step-Down Controller TSSOP20
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pMPS MP2918 — step-down controller, 4-40V input, 100 kHz, TSSOP20./p
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MP2918 4-40V, 100kHz Step-Down Controller TSSOP20
MPS MP2918 is a step-down controller that accepts 4 V to 40 V input, switches at 100 kHz, supplied in a TSSOP20 package.
Key Specifications
| Part Number | MP2918 |
| Input Voltage | 4 V to 40 V |
| Switching Frequency | 100 kHz |
| Topology | Step-Down Controller |
| Package | TSSOP20 |
| Ordering Codes | MP2918 |
Features
- Wide 4V to 40V Operating Input Range
- Dual N-Channel MOSFET Driver
- 0.8V Voltage Reference with ±1.5% Accuracy Over Temperature
- Low Dropout Operation: Maximum Duty Cycle at 99.5%
- Programmable Frequency Range: 100kHz - 1000kHz
- External Sync Clock Range: 100kHz- 1000kHz
- 180° Out-of-Phase SYNCO Pin
- Programmable Soft Start (SS)
- Power Good (PG) Output Voltage Monitor
- Selectable Cycle-by-Cycle Current Limit
Applications
- Automotive
- Industrial Control Systems FEATURES
- Wide 4V to 40V Operating Input Range
- Dual N-Channel MOSFET Driver
- 0.8V Voltage Reference with ±1.5% Accuracy Over Temperature
- Low Dropout Operation: Maximum Duty Cycle at 99.5%
- Programmable Frequency Range: 100kHz - 1000kHz
- External Sync Clock Range: 100kHz- 1000kHz
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.
- Package TSSOP20 — check the land pattern in the datasheet before layout.
Common Questions
What switching frequency does the MP2918 run at?
100 kHz, programmable.
Which package is the MP2918 available in?
TSSOP20.
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