6A, 21V, 600kHz Step-Down Converter with Synchronizable Gate Driver
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The MP38872 is a monolithic step-down switch mode converter with a built in high-side internal power MOSFET and a gate driver for a low-side external MOSFET. It achieves 6A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and reliable over-current protection. The MP38872 requires a minimum number of readily available standard external components and is available in a 14-pin QFN 3x4mm package with exposed pad.
产品特性
- Wide 4.5V to 21V Operating Input Range
- 6A Output Current
- 45mO Internal Power MOSFET Switch
- Power Good Indicator
- Synchronizable Gate Driver Delivers up to 95% Efficiency
- Fixed 600kHz Frequency
- Synchronizable to >1MHz External Clock
- Cycle-by-Cycle Over Current Protection
- Thermal Shutdown
- Output Adjustable from 0.8V to 15V
- Stable with Low ESR Output Ceramic Capacitors
- Available in a Thermally Enhanced 14-Pin QFN 3x4mm Package
技术参数
- fsw (max) (kHz)600
- Vin (min) (V)4.5
- Vin (max) (V)21
- Iout (max) (A)6
- Isw Limit (typ) (A)8
- Max Duty Cycle (%)0.9
- Vfb (typ) (V)0.808
- Iq (typ) (mA)0.9
- Regulated Outputs1
- Vout (max) (V)15
- Vout (min) (V)0.8
- GradeCatalog
- PackageQFN-14 (3x4)
- Common FeaturesPower Good, Synchronous Rectification
- Special FeaturesExternal Frequency Sync
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