DC1231A-B, Demo Board Using the LTC3850EGN Synchronous Buck Converter @ 6.5V < Vin < 24V, Vout1 = 3.3V/5A, Vout2 = 2.5V/5A, with DCR Current Sense
Reference Design using part LTC3850EGN by Analog Devices
Image
1 / 1
For End Products
- Backplane Distributed Power
- Laptop
- Notebook
- Portable
Description
- DC1231A-B, Demonstration Circuit is a Dual Output, Dual Phase 5A Synchronous Buck Converter featuring the LTC3850EGN. The entire circuit, including the bulk output capacitors, fit within a 1.04 X 0.94 area on all layers. The package style for the LTC3850EGN is a 28-lead narrow plastic SSOP. The main features of the board include rail tracking, an internal 5V linear regulator for bias, RUN pins for each output and a PGOOD signal and a Mode selector that allow the converter to run in CCM, pulse skip or Burst Mode operation. Synchronization to an external clock is also possible through some minor component changes. The DC1231A-B is configured with a DCR sense circuit that allows the converter to use the inductors DCR as the sense element instead of the on-board sense resistors to save cost and board space and improves efficiency
Key Features
-
Conversion TypeDC to DC
-
Input Voltage6.5 to 24 V
-
Output Voltage2.5|3.3 V
-
Output Current5@2.5V|5@3.3V A
-
Efficiency91.2 %
-
TopologyBuck
Featured Parts (4)
| Part Number | Manufacturer | Type | Description | |||
|---|---|---|---|---|---|---|
|
LTC3850EGN#TRPBF | Analog Devices | DC to DC Controllers | DC/DC Cntrlr Dual-OUT Step Down 780kHz 28-Pin SSOP N T/R | Buy | |
|
|
LTC3850EGN-1#PBF | Analog Devices | DC to DC Controllers | DC/DC Cntrlr Dual-OUT Step Down 780kHz 28-Pin SSOP N Tube | Buy | |
|
|
LTC3850EGN-1#TRPBF | Analog Devices | DC to DC Controllers | DC/DC Cntrlr Dual-OUT Step Down 780kHz 28-Pin SSOP N T/R | Buy | |
|
|
LTC3850EGN#PBF | Analog Devices | DC to DC Controllers | DC/DC Cntrlr Dual-OUT Step Down 780kHz 28-Pin SSOP N Tube | Buy | |