Datasheet Linear Technology LTC3618
| Manufacturer | Linear Technology |
| Series | LTC3618 |
Dual 4MHz, ±3A Synchronous Buck Converter for DDR Termination
Datasheets
Datasheet LTC3618
PDF, 633 Kb, Language: en, File uploaded: Sep 22, 2017, Pages: 24
Dual 4MHz, ±3A Synchronous Buck Converter for DDR Termination
Dual 4MHz, ±3A Synchronous Buck Converter for DDR Termination
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Prices
Packaging
| LTC3618EFE#PBF | LTC3618EFE#TRPBF | LTC3618EUF#PBF | LTC3618EUF#TRPBF | LTC3618IFE#PBF | LTC3618IFE#TRPBF | LTC3618IUF#PBF | LTC3618IUF#TRPBF | |
|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Package | TSSOP-24 Package Outline Drawing | TSSOP-24 Package Outline Drawing | 4x4 QFN-24 Package Outline Drawing | 4x4 QFN-24 Package Outline Drawing | TSSOP-24 Package Outline Drawing | TSSOP-24 Package Outline Drawing | 4x4 QFN-24 Package Outline Drawing | 4x4 QFN-24 Package Outline Drawing |
| Package Code | FE | FE | UF | UF | FE | FE | UF | UF |
| Package Index | 05-08-1771 | 05-08-1771 | 05-08-1697 | 05-08-1697 | 05-08-1771 | 05-08-1771 | 05-08-1697 | 05-08-1697 |
| Pin Count | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
Parametrics
| Parameters / Models | LTC3618EFE#PBF | LTC3618EFE#TRPBF | LTC3618EUF#PBF | LTC3618EUF#TRPBF | LTC3618IFE#PBF | LTC3618IFE#TRPBF | LTC3618IUF#PBF | LTC3618IUF#TRPBF |
|---|---|---|---|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC1726A | DC1726A | DC1726A | DC1726A | DC1726A | DC1726A | DC1726A | DC1726A |
| Design Tools | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File |
| Export Control | no | no | no | no | no | no | no | no |
| Features | External Synchronization, Resistor Set Frequency, DDR Mode, Tracking, Anti-Phase Switching, Power Good, Soft Start | External Synchronization, Resistor Set Frequency, DDR Mode, Tracking, Anti-Phase Switching, Power Good, Soft Start | External Synchronization, Resistor Set Frequency, DDR Mode, Tracking, Anti-Phase Switching, Power Good, Soft Start | External Synchronization, Resistor Set Frequency, DDR Mode, Tracking, Anti-Phase Switching, Power Good, Soft Start | External Synchronization, Resistor Set Frequency, DDR Mode, Tracking, Anti-Phase Switching, Power Good, Soft Start | External Synchronization, Resistor Set Frequency, DDR Mode, Tracking, Anti-Phase Switching, Power Good, Soft Start | External Synchronization, Resistor Set Frequency, DDR Mode, Tracking, Anti-Phase Switching, Power Good, Soft Start | External Synchronization, Resistor Set Frequency, DDR Mode, Tracking, Anti-Phase Switching, Power Good, Soft Start |
| Frequency, kHz | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 |
| Frequency Adjust Range | Up to 4MHz | Up to 4MHz | Up to 4MHz | Up to 4MHz | Up to 4MHz | Up to 4MHz | Up to 4MHz | Up to 4MHz |
| Frequency Sync Range | 400kHz - 4MHz | 400kHz - 4MHz | 400kHz - 4MHz | 400kHz - 4MHz | 400kHz - 4MHz | 400kHz - 4MHz | 400kHz - 4MHz | 400kHz - 4MHz |
| Integrated Inductor | no | no | no | no | no | no | no | no |
| Ishutdown, µA | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Isupply, mA | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 |
| Max Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Monolithic | yes | yes | yes | yes | yes | yes | yes | yes |
| Number of Outputs | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| 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 | -40 to 85 |
| Output Current, A | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Output Current 2, A | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Output Current 3, A | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
| Polyphase | yes | yes | yes | yes | yes | yes | yes | yes |
| Switch Current, A | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| Switch Current 2, A | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| Synchronous | yes | yes | yes | yes | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Topology 1 | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Topology 2 | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Topology 3 | LDO | LDO | LDO | LDO | LDO | LDO | LDO | LDO |
| Vin Max, V | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| Vin Min, V | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 |
| Vout Max, V | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Vout Max 2, V | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 |
| Vout Max 3, V | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 |
| Vout Maximum | 2.5V | 2.5V | 2.5V | 2.5V | 2.5V | 2.5V | 2.5V | 2.5V |
| Vout Min, V | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Vout Min 2, V | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Vout Min 3, V | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
Eco Plan
| LTC3618EFE#PBF | LTC3618EFE#TRPBF | LTC3618EUF#PBF | LTC3618EUF#TRPBF | LTC3618IFE#PBF | LTC3618IFE#TRPBF | LTC3618IUF#PBF | LTC3618IUF#TRPBF | |
|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: LTC3618 (8)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck
- Power Management > Switching Regulator > DDR Memory/Bus Termination
