MP2493
Active
1.5A, 36V,130KHz Low EMI Step-Down Converter with Programmable Output Current Limit
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The MP2493 is a monolithic step-down switch mode converter with a programmable output current limit. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. The maximum output current can be programmed by sensing current through the inductor DC resistance (DCR) or an accurate sense resistor. Fault condition protection includes cyclebycycle current limiting and thermal shutdown. The MP2493 requires a minimum number of readily available standard external components. The MP2493 is available in 8-pin SOIC, and 8-pin SOICE packages.
Product Features
- Wide 4.5V to 36V Operating Input Range
- Programmable up to 2A Output Current
- Output Adjustable from 0.8V to 15V
- Programmable Output Current Limit Without Power Loss
- 0.25O Internal Power MOSFET Switch
- Stable with Low ESR Output Ceramic Capacitors
- Up to 95% Efficiency
- Fixed 130kHz Frequency with low EMI
- Thermal Shutdown
- Cycle-by-Cycle Over Current Protection
- Available in 8-Pin SOIC and 8-pin SOIC8E Packages
Parametrics
- fsw (max) (kHz)130
- fsw (kHz)130
- SSExternal
- PackageSOIC-8, SOIC-8E
- GradeCatalog
- Vfb (V)0.8
- Iout (A)2
- Isw Limit (A)3
- Operating Vin (max) (V)36
- Operating Vin (min) (V)4.5
- Ishutdown (max) (µA)10
- Short-Circuit fsw (kHz)35
- Iq (mA)0.5
- Control ModeCurrent Mode
- Common FeaturesExternal Soft Start
- HS Switch Rds(on) (mΩ)250.000000
- Absolute Vin (max) (V)40
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