Datasheet Linear Technology LTC3878 — Datenblatt
| Hersteller | Linear Technology |
| Serie | LTC3878 |
Schneller, breiter Betriebsbereich Kein RSENSE Step-Down DC / DC-Controller
Datenblätter
Datasheet LTC3878
PDF, 413 Kb, Sprache: en, Datei hochgeladen: Sep 24, 2017, Seiten: 26
Fast, Wide Operating Range No RSENSE Step-Down DC/DC Controller
Fast, Wide Operating Range No RSENSE Step-Down DC/DC Controller
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Preise
Verpackung
| LTC3878EGN#PBF | LTC3878EGN#TRPBF | LTC3878IGN#PBF | LTC3878IGN#TRPBF | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Package | SSOP-16 Paketumrisszeichnung | SSOP-16 Paketumrisszeichnung | SSOP-16 Paketumrisszeichnung | SSOP-16 Paketumrisszeichnung |
| Package Code | GN | GN | GN | GN |
| Package Index | 05-08-1641 (GN16) | 05-08-1641 (GN16) | 05-08-1641 (GN16) | 05-08-1641 (GN16) |
| Pin Count | 16 | 16 | 16 | 16 |
Parameter
| Parameters / Models | LTC3878EGN#PBF | LTC3878EGN#TRPBF | LTC3878IGN#PBF | LTC3878IGN#TRPBF |
|---|---|---|---|---|
| Architecture | Constant On-Time Valley Current Mode | Constant On-Time Valley Current Mode | Constant On-Time Valley Current Mode | Constant On-Time Valley Current Mode |
| Demo Boards | DC1292A | DC1292A | DC1292A | DC1292A |
| Design Tools | LTspice File | LTspice File | LTspice File | LTspice File |
| Export Control | no | no | no | no |
| Features | Power Good, Resistor Set Frequency | Power Good, Resistor Set Frequency | Power Good, Resistor Set Frequency | Power Good, Resistor Set Frequency |
| Frequency, kHz | 2000 | 2000 | 2000 | 2000 |
| Frequency Adjust Range | Up to 2MHz | Up to 2MHz | Up to 2MHz | Up to 2MHz |
| Integrated Inductor | no | no | no | no |
| Ishutdown, µA | 18 | 18 | 18 | 18 |
| Isupply, mA | 1.5 | 1.5 | 1.5 | 1.5 |
| Max Phases | 1 | 1 | 1 | 1 |
| Monolithic | no | no | no | no |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 |
| Output Current, A | 25 | 25 | 25 | 25 |
| Polyphase | no | no | no | no |
| Sense Resistor | None | None | None | None |
| Switch Current, A | 25 | 25 | 25 | 25 |
| Synchronous | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck |
| Vin Max, V | 38 | 38 | 38 | 38 |
| Vin Min, V | 4 | 4 | 4 | 4 |
| Vout Max, V | 34.2 | 34.2 | 34.2 | 34.2 |
| Vout Maximum | .9Vin | .9Vin | .9Vin | .9Vin |
| Vout Min, V | 0.8 | 0.8 | 0.8 | 0.8 |
| Vref Accuracy Over Temp, % | 1 | 1 | 1 | 1 |
Öko-Plan
| LTC3878EGN#PBF | LTC3878EGN#TRPBF | LTC3878IGN#PBF | LTC3878IGN#TRPBF | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Artikel
- Compact No RSENSE Controllers Feature Fast Transient Response and Regulate to Low VOUT from Wide Ranging VIN &mdash LT JournalPDF, 486 Kb, Datei veröffentlicht: Jun 1, 2009Auszug aus dem Dokument
Modellreihe
Serie: LTC3878 (4)
Herstellerklassifikation
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers