Datasheet Linear Technology LTC3808
Manufacturer | Linear Technology |
Series | LTC3808 |
No RSENSE, Low EMI, Synchronous DC/DC Controller with Output Tracking
Datasheets
Datasheet LTC3808
PDF, 386 Kb, Language: en, File uploaded: Sep 23, 2017, Pages: 28
No RSENSE , Low EMI, Synchronous DC/DC Controller with Output Tracking
No RSENSE , Low EMI, Synchronous DC/DC Controller with Output Tracking
Extract from the document
Prices
Packaging
LTC3808EDE#PBF | LTC3808EDE#TRPBF | LTC3808EGN#PBF | LTC3808EGN#TRPBF | |
---|---|---|---|---|
N | 1 | 2 | 3 | 4 |
Package | 4x3 DFN-14 Package Outline Drawing | 4x3 DFN-14 Package Outline Drawing | SSOP-16 Package Outline Drawing | SSOP-16 Package Outline Drawing |
Package Code | DE | DE | GN | GN |
Package Index | 05-08-1708 | 05-08-1708 | 05-08-1641 (GN16) | 05-08-1641 (GN16) |
Pin Count | 14 | 14 | 16 | 16 |
Parametrics
Parameters / Models | LTC3808EDE#PBF | LTC3808EDE#TRPBF | LTC3808EGN#PBF | LTC3808EGN#TRPBF |
---|---|---|---|---|
Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
Demo Boards | DC769A | DC769A | DC769A | DC769A |
Design Tools | LTspice Model | LTspice Model | LTspice Model | LTspice Model |
Export Control | no | no | no | no |
Features | No Rsense, Tracking, Spread Spectrum, Burst Mode, External Synchronization, PLL, Selectable Switching Frequency, Power Good, 100% Duty Cycle | No Rsense, Tracking, Spread Spectrum, Burst Mode, External Synchronization, PLL, Selectable Switching Frequency, Power Good, 100% Duty Cycle | No Rsense, Tracking, Spread Spectrum, Burst Mode, External Synchronization, PLL, Selectable Switching Frequency, Power Good, 100% Duty Cycle | No Rsense, Tracking, Spread Spectrum, Burst Mode, External Synchronization, PLL, Selectable Switching Frequency, Power Good, 100% Duty Cycle |
Frequency, kHz | 750 | 750 | 750 | 750 |
Frequency Adjust Range | 300kHz, 550kHz, 750kHz | 300kHz, 550kHz, 750kHz | 300kHz, 550kHz, 750kHz | 300kHz, 550kHz, 750kHz |
Frequency Sync Range | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz |
Integrated Inductor | no | no | no | no |
Ishutdown, µA | 9 | 9 | 9 | 9 |
Isupply, mA | 0.35 | 0.35 | 0.35 | 0.35 |
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 | 0 to 85 | 0 to 85 |
Output Current, A | 5 | 5 | 5 | 5 |
Polyphase | no | no | no | no |
Sense Resistor | None | None | None | None |
Switch Current, A | 5 | 5 | 5 | 5 |
Synchronous | yes | yes | yes | yes |
Topology | Buck | Buck | Buck | Buck |
Vin Max, V | 9.8 | 9.8 | 9.8 | 9.8 |
Vin Min, V | 2.75 | 2.75 | 2.75 | 2.75 |
Vout Max, V | 9.8 | 9.8 | 9.8 | 9.8 |
Vout Maximum | Vin | Vin | Vin | Vin |
Vout Min, V | 0.6 | 0.6 | 0.6 | 0.6 |
Vref Accuracy Over Temp, % | 1.5 | 1.5 | 1.5 | 1.5 |
Eco Plan
LTC3808EDE#PBF | LTC3808EDE#TRPBF | LTC3808EGN#PBF | LTC3808EGN#TRPBF | |
---|---|---|---|---|
RoHS | Compliant | Compliant | Compliant | Compliant |
Design Notes
- Low EMI Synchronous DC/DC Step-Down Controllers Offer Programmable Output Tracking &mdash DN382PDF, 122 Kb, File published: Dec 9, 2005Extract from the document
Articles
- Low EMI, Output Tracking, High Efficiency, and Too Many Other Features to List in a 3mm x 4mm Synchronous Buck Controller &mdash LT JournalPDF, 356 Kb, File published: Jun 10, 2005Extract from the document
Model Line
Series: LTC3808 (4)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers