MP9943
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製品説明
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.
製品の特長
- Wide 4V to 30V Continuous Operating Input Range
- 36V Input Transient Tolerance
- 85mO/55mO 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 QFN-8 (3mmx3mm) package
パラメータ
- fsw (max) (kHz)410
- Vin (min) (V)4
- Vin (max) (V)30
- Iout (max) (A)3
- Isw Limit (typ) (A)4.4
- Max Duty Cycle (%)0.95
- Vfb (V)0.792
- Iq (typ) (mA)0.5
- Regulated Outputs1
- Vout (max) (V)28.5
- Vout (min) (V)0.8
- GradeCatalog
- PackageQFN-8 (3x3)
- Control ModeCurrent Mode
- Common FeaturesLight-Load Efficiency, Power Good, Synchronous Rectification
- Special FeaturesExternal Frequency Sync
High-Efficiency, 3A Peak, 36V, 410kHz Step-Down Converter with Power Good Evaluation Board
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.
$25.00 + tax
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