Datasheet Linear Technology LTC3822
| Manufacturer | Linear Technology |
| Series | LTC3822 |
No RSENSE, Low Input Voltage, Synchronous Step-Down DC/DC Controller
Datasheets
Datasheet LTC3822
PDF, 209 Kb, Language: en, File uploaded: Sep 23, 2017, Pages: 20
No RSENSE , Low Input Voltage, Synchronous Step-Down DC/DC Controller
No RSENSE , Low Input Voltage, Synchronous Step-Down DC/DC Controller
Extract from the document
Packaging
| LTC3822EDD#PBF | LTC3822EDD#TRPBF | LTC3822EMSE#PBF | LTC3822EMSE#TRPBF | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Package | 3x3 DFN-10 Package Outline Drawing | 3x3 DFN-10 Package Outline Drawing | MS-10E Package Outline Drawing | MS-10E Package Outline Drawing |
| Package Code | DD | DD | MSE | MSE |
| Package Index | 05-08-1699 | 05-08-1699 | 05-08-1664 | 05-08-1664 |
| Pin Count | 10 | 10 | 10 | 10 |
Parametrics
| Parameters / Models | LTC3822EDD#PBF | LTC3822EDD#TRPBF | LTC3822EMSE#PBF | LTC3822EMSE#TRPBF |
|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC1014A,DC972A | DC1014A,DC972A | DC1014A,DC972A | DC1014A,DC972A |
| Design Tools | LTspice Model | LTspice Model | LTspice Model | LTspice Model |
| Export Control | no | no | no | no |
| Features | No Rsense, Selectable Switching Frequency | No Rsense, Selectable Switching Frequency | No Rsense, Selectable Switching Frequency | No Rsense, Selectable Switching Frequency |
| Frequency, kHz | 750 | 750 | 750 | 750 |
| Frequency Adjust Range | 300kHz, 550kHz, 750kHz | 300kHz, 550kHz, 750kHz | 300kHz, 550kHz, 750kHz | 300kHz, 550kHz, 750kHz |
| Integrated Inductor | no | no | no | no |
| Ishutdown, µA | 7.5 | 7.5 | 7.5 | 7.5 |
| Isupply, mA | 0.34 | 0.34 | 0.34 | 0.34 |
| 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 | 20 | 20 | 20 | 20 |
| Polyphase | no | no | no | no |
| Sense Resistor | None | None | None | None |
| Switch Current, A | 20 | 20 | 20 | 20 |
| Synchronous | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck |
| Vin Max, V | 4.5 | 4.5 | 4.5 | 4.5 |
| Vin Min, V | 2.75 | 2.75 | 2.75 | 2.75 |
| Vout Max, V | 4.455 | 4.455 | 4.455 | 4.455 |
| Vout Maximum | .99Vin | .99Vin | .99Vin | .99Vin |
| Vout Min, V | 0.6 | 0.6 | 0.6 | 0.6 |
| Vref Accuracy Over Temp, % | 1 | 1 | 1 | 1 |
Eco Plan
| LTC3822EDD#PBF | LTC3822EDD#TRPBF | LTC3822EMSE#PBF | LTC3822EMSE#TRPBF | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Articles
- High Efficiency, Low Input Voltage, Synchronous Buck Controller Drives up to 15A Load Current &mdash LT JournalPDF, 406 Kb, File published: Nov 21, 2006Extract from the document
Model Line
Series: LTC3822 (4)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers