EV9943-Q-00A
High-Efficiency, 3A Peak, 36V, 410kHz Step-Down Converter with Power Good Evaluation Board
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The EV9943-Q-00A demonstrates MPS’s MP9943, a high-frequency, synchronous, rectified, step-down converter with built-in high-side and low-side power MOSFETs. The MP9943 offers a very compact solution to achieve a 3A peak output current with excellent load and line regulation over a wide input supply range. The MP9943 has synchronous mode operation for higher efficiency over the output current load range.
Current-mode operation provides fast transient response and eases loop stabilization.
Full protection features includes over-current protection and thermal shutdown.
The MP9943 requires a minimal number of readily-available s is available in a space-saving QFN8 (3mm x 3mm) package.
Product Features
- Wide 4V to 30V Continuous OperatingInputRange
- 36V Input Transient Tolerance
- 85mΩ/55mΩ Low RDS(ON) Internal Power MOSFETs
- High-Efficiency Synchronous Mode Operation
- 410kHz Switching Frequency
- Synchronizes from 200kHz-to-2.2MHz External Clock
- High Duty Cycle for Automotive Cold-crank
- Internal Power-Save Mode
- Internal Soft-Start
- Power Good Indicator
- Over Current Protection and Hiccup
- Thermal Shutdown
- Output Adjustable from 0.8V
- Available in an QFN8 (3mm x 3mm) Package
Parametrics
- IC Supported 1MP9943
Monolithic IC
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IC Details
The MP9943 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve a 3A peak output current with excellent load and line regulation over a wide input supply range. The MP9943 has synchronous mode operation for higher efficiency over the output current load range. Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection and thermal shutdown. The MP9943 requires a minimal number of readily-available standard external components, and is available in a space-saving QFN-8 (3mmx3mm) package.
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