Typical Application for LTC3857 - Low IQ, Dual, 2-Phase Synchronous Step-Down Controller
Reference Design using part LTC3857 by Analog Devices
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Associated Documents
For End Products
- Automotive Power Supply
- Battery Powered Systems
- Distributed Power System
Description
- Typical Application for LTC3857 - Low IQ, Dual, 2-Phase Synchronous Step-Down Controller. The LTC3857 is a high performance dual step-down switching regulator controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz. Power loss and noise due to the ESR of the input capacitor ESR are minimized by operating the two controller output stages out of phase
Key Features
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Conversion TypeDC to DC
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Input Voltage9 to 38 V
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Output Voltage3.3|8.5 V
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Output Current3.5@8.5V|5@3.3V A
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TopologyBuck- Synchronous
Featured Parts (4)
| Part Number | Manufacturer | Type | Description | |||
|---|---|---|---|---|---|---|
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LTC3857EUH#PBF | Analog Devices | DC to DC Controllers | DC/DC Cntrlr Dual-OUT Step Down 900kHz 32-Pin QFN EP Tube | Buy | |
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LTC3857IUH#PBF | Analog Devices | DC to DC Controllers | DC/DC Cntrlr Dual-OUT Step Down 900kHz 32-Pin QFN EP Tube | Buy | |
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LTC3857IUH#TRPBF | Analog Devices | DC to DC Controllers | DC/DC Cntrlr Dual-OUT Step Down 900kHz 32-Pin QFN EP T/R | Buy | |
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LTC3857EUH#TRPBF | Analog Devices | DC to DC Controllers | DC/DC Cntrlr Dual-OUT Step Down 900kHz 32-Pin QFN EP T/R | Buy | |