Datasheet Linear Technology LTC3728L-1
| Manufacturer | Linear Technology |
| Series | LTC3728L-1 |
Dual, 550kHz, 2-Phase Synchronous Regulator
Datasheets
Datasheet LTC3728L-1
PDF, 487 Kb, Language: en, File uploaded: Sep 22, 2017, Pages: 32
Dual, 550kHz, 2-Phase Synchronous Regulator
Dual, 550kHz, 2-Phase Synchronous Regulator
Extract from the document
Prices
Packaging
| LTC3728LEGN-1#PBF | LTC3728LEGN-1#TRPBF | LTC3728LEUH-1#PBF | LTC3728LEUH-1#TRPBF | LTC3728LIGN-1#PBF | LTC3728LIGN-1#TRPBF | LTC3728LIUH-1#TRPBF | |
|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Package | SSOP-28 Package Outline Drawing | SSOP-28 Package Outline Drawing | 5x5 QFN-32 Package Outline Drawing | 5x5 QFN-32 Package Outline Drawing | SSOP-28 Package Outline Drawing | SSOP-28 Package Outline Drawing | 5x5 QFN-32 Package Outline Drawing |
| Package Code | GN | GN | UH | UH | GN | GN | UH |
| Package Index | 05-08-1641 (GN28) | 05-08-1641 (GN28) | 05-08-1693 | 05-08-1693 | 05-08-1641 (GN28) | 05-08-1641 (GN28) | 05-08-1693 |
| Pin Count | 28 | 28 | 32 | 32 | 28 | 28 | 32 |
Parametrics
| Parameters / Models | LTC3728LEGN-1#PBF | LTC3728LEGN-1#TRPBF | LTC3728LEUH-1#PBF | LTC3728LEUH-1#TRPBF | LTC3728LIGN-1#PBF | LTC3728LIGN-1#TRPBF | LTC3728LIUH-1#TRPBF |
|---|---|---|---|---|---|---|---|
| Design Tools | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model |
| Export Control | no | no | no | no | no | no | no |
| Features | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start |
| Frequency, kHz | 550 | 550 | 550 | 550 | 550 | 550 | 550 |
| Frequency Sync Range | 250kHz - 550kHz | 250kHz - 550kHz | 250kHz - 550kHz | 250kHz - 550kHz | 250kHz - 550kHz | 250kHz - 550kHz | 250kHz - 550kHz |
| Ishutdown, µA | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Isupply, mA | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 |
| Monolithic | no | no | no | no | no | no | no |
| Number of Outputs | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Output Current, A | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Output Current 2, A | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Polyphase | yes | yes | yes | yes | yes | yes | yes |
| Switch Current, A | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Synchronous | yes | yes | yes | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Vin Max, V | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Vin Min, V | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Vout Max, V | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Vout Maximum | 7V | 7V | 7V | 7V | 7V | 7V | 7V |
| Vout Min, V | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
Eco Plan
| LTC3728LEGN-1#PBF | LTC3728LEGN-1#TRPBF | LTC3728LEUH-1#PBF | LTC3728LEUH-1#TRPBF | LTC3728LIGN-1#PBF | LTC3728LIGN-1#TRPBF | LTC3728LIUH-1#TRPBF | |
|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Design Notes
- Active Voltage Positioning Reduces Output Capacitors &mdash Design Solutions 10PDF, 130 Kb, File published: Nov 1, 1999Extract from the document
Model Line
Series: LTC3728L-1 (7)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | External Power Switch Buck Controllers
