Datasheet Linear Technology LT3840 — Даташит
| Производитель | Linear Technology |
| Серия | LT3840 |
Wide Input Range Synchronous Regulator Controller with Accurate Current Limit
Datasheets
Datasheet LT3840
PDF, 292 Кб, Язык: анг., Файл закачен: 19 сен 2017, Страниц: 24
Wide Input Range Synchronous Regulator Controller with Accurate Current Limit
Wide Input Range Synchronous Regulator Controller with Accurate Current Limit
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Цены
 Купить LT3840 на РадиоЛоцман.Цены — от 307 до 1 624 ₽26 предложений от 15 поставщиков Buck Regulator Positive or Negative Output Step-Down DC-DC Controller IC 38-QFN (4x6) | |||
| LT3840EFE#PBF Analog Devices | от 307 ₽ | ||
| LT3840EFE#PBF Analog Devices | от 315 ₽ | ||
| LT3840IUFE#TRPBF Linear Technology | 416 ₽ | ||
| LT3840EFE#PBF Linear Technology | 751 ₽ | ||
Корпус / Упаковка / Маркировка
| LT3840EFE#PBF | LT3840EFE#TRPBF | LT3840EUFE#PBF | LT3840EUFE#TRPBF | LT3840HFE#PBF | LT3840HFE#TRPBF | LT3840IFE#PBF | LT3840IFE#TRPBF | LT3840IUFE#PBF | LT3840IUFE#TRPBF | LT3840MPFE#PBF | LT3840MPFE#TRPBF | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Корпус | TSSOP-28 Габаритный чертеж корпуса | TSSOP-28 Габаритный чертеж корпуса | 4x6 QFN-38 Габаритный чертеж корпуса | 4x6 QFN-38 Габаритный чертеж корпуса | TSSOP-28 Габаритный чертеж корпуса | TSSOP-28 Габаритный чертеж корпуса | TSSOP-28 Габаритный чертеж корпуса | TSSOP-28 Габаритный чертеж корпуса | 4x6 QFN-38 Габаритный чертеж корпуса | 4x6 QFN-38 Габаритный чертеж корпуса | TSSOP-28 Габаритный чертеж корпуса | TSSOP-28 Габаритный чертеж корпуса |
| Код корпуса | FE | FE | UFE | UFE | FE | FE | FE | FE | UFE | UFE | FE | FE |
| Индекс корпуса | 05-08-1663 (EA) | 05-08-1663 (EA) | 05-08-1750 | 05-08-1750 | 05-08-1663 (EA) | 05-08-1663 (EA) | 05-08-1663 (EA) | 05-08-1663 (EA) | 05-08-1750 | 05-08-1750 | 05-08-1663 (EA) | 05-08-1663 (EA) |
| Количество выводов | 28 | 28 | 38 | 38 | 28 | 28 | 28 | 28 | 38 | 38 | 28 | 28 |
Параметры
| Parameters / Models | LT3840EFE#PBF | LT3840EFE#TRPBF | LT3840EUFE#PBF | LT3840EUFE#TRPBF | LT3840HFE#PBF | LT3840HFE#TRPBF | LT3840IFE#PBF | LT3840IFE#TRPBF | LT3840IUFE#PBF | LT3840IUFE#TRPBF | LT3840MPFE#PBF | LT3840MPFE#TRPBF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Архитектура | 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 | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC1909A | DC1909A | DC1909A | DC1909A | DC1909A | DC1909A | DC1909A | DC1909A | DC1909A | DC1909A | DC1909A | DC1909A |
| Design Tools | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File |
| Экспортный контроль | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет |
| Основные особенности | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive |
| Тактовая частота, kHz | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Frequency Adjust Range | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz |
| Frequency Sync Range | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz | 50kHz - 1MHz |
| Integrated Inductor | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет |
| Ishutdown, мкА | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Isupply, мА | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 |
| Max Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Monolithic | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет |
| Количество выходов | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Рабочий диапазон температур, °C | от 0 до 85 | от 0 до 85 | от 0 до 85 | от 0 до 85 | от -40 до 125 | от -40 до 125 | от -40 до 85 | от -40 до 85 | от -40 до 85 | от -40 до 85 | от -55 до 125 | от -55 до 125 |
| Выходной ток, A | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Polyphase | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет |
| Sense Resistor | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense |
| Switch Current, A | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Synchronous | да | да | да | да | да | да | да | да | да | да | да | да |
| Topology | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting |
| Topology 1 | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting |
| Vin Max, В | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| Vin Min, В | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Vout Max, В | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| Vout Maximum | 60V | 60V | 60V | 60V | 60V | 60V | 60V | 60V | 60V | 60V | 60V | 60V |
| Vout Min, В | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 |
| Vref Accuracy Over Temp, % | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Vswitch Max, В | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
Экологический статус
| LT3840EFE#PBF | LT3840EFE#TRPBF | LT3840EUFE#PBF | LT3840EUFE#TRPBF | LT3840HFE#PBF | LT3840HFE#TRPBF | LT3840IFE#PBF | LT3840IFE#TRPBF | LT3840IUFE#PBF | LT3840IUFE#TRPBF | LT3840MPFE#PBF | LT3840MPFE#TRPBF | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RoHS | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим |
Модельный ряд
Серия: LT3840 (12)
Классификация производителя
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | High Input Voltage Buck | External Power Switch Buck Controllers
- Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators
