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Analog Devices LTC3876EUHF | Demoboard DC1631A
LTC3876EUHF Demo Board - High Efficiency, Dual Output DDR Power Supply
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 4.5-14 V |
| Ausgang 1 | 0.9 V / 10 A |
| Ausgang 2 | 1.8 V / 20 A |
| IC-Revision | 3 |
Beschreibung
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.
Eigenschaften
- 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.
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | Material | LR(µH) | fres(MHz) | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCC SMT-Hochstrominduktivität, 0.47 µH, 31.3 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-HCC SMT-Hochstrominduktivität | Induktivität0.47 µH | Performance Nennstrom31.3 A | Sättigungsstrom 146.5 A | Sättigungsstrom @ 30%54.9 A | Gleichstromwiderstand1.85 mΩ | MaterialFerrite | Nenninduktivität0.47 µH | Eigenresonanzfrequenz160 MHz |