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Analog Devices LTC3876EUHF | Demoboard DC1631A
LTC3876EUHF Demo Board - High Efficiency, Dual Output DDR Power Supply
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-14 V |
| Output 1 | 0.9 V / 10 A |
| Output 2 | 1.8 V / 20 A |
| IC revision | 3 |
Description
Demonstration circuit 1631A is a dual output DDR2/3 power supply operating with a switching frequency of 400kHz over an input voltage range of 4.5V to 14V. The fixed on-time valley current mode control of the LTC®3876 allows for a fast load step response (see Figure 3). The load step response can be tested with the onboard load step circuit and a bench pulse generator.
The demo board uses a high density, two sided drop-in layout. The entire converter, excluding the bulk output and input capacitors, fits within a compact 1.5” × 1.0” area on the board. The package style for the LTC3876EUHF is a 38-pin 5mm × 7mm QFN with an exposed ground pad.
Features
- MODE jumper to program either discontinuous mode (DCM) or forced continuous mode (FCM) at light or no load.
- EXTVCC pin.
- PLLIN pin to synchronize the converter to an external clock.
- Remote sensing for VDDQ.
- RUN pin, PGOOD pin and TRACK/SS pin.
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | Material | LR (µH) | fres (MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7443330047 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCC SMT High Current Cube Inductor | 0.47 | 31.3 | 46.5 | 54.9 | 1.85 | Ferrite | 0.47 | 160 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7443330047 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | Material | LR (µH) | fres (MHz) | Samples |
|---|