Datasheet Linear Technology LTC3851A — Даташит
Производитель | Linear Technology |
Серия | LTC3851A |
Контроллер синхронного понижающего импульсного регулятора
Datasheets
Datasheet LTC3851A
PDF, 445 Кб, Язык: анг., Файл закачен: 23 сен 2017, Страниц: 30
Synchronous Step-Down Switching Regulator Controller
Synchronous Step-Down Switching Regulator Controller
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Цены
Dual, 2-Phase Synchronous Step-Down DC/DC Controllers | |||
LTC3851A-1 : 4.5-14Vin 1.5Vout@15A Linear Technology | по запросу | ||
LTC3851A | по запросу | ||
LTC3851A-1 | по запросу |
Корпус / Упаковка / Маркировка
Параметры
Parameters / Models | LTC3851AEGN#PBF | LTC3851AEGN#TRPBF | LTC3851AEMSE#PBF | LTC3851AEMSE#TRPBF | LTC3851AEUD#PBF | LTC3851AEUD#TRPBF | LTC3851AHMSE#PBF | LTC3851AHMSE#TRPBF | LTC3851AIGN#PBF | LTC3851AIGN#TRPBF | LTC3851AIMSE#PBF | LTC3851AIMSE#TRPBF | LTC3851AIUD#PBF | LTC3851AIUD#TRPBF | LTC3851AMPMSE#PBF | LTC3851AMPMSE#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 | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
Demo Boards | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A | DC1432A-A |
Design Tools | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File |
Экспортный контроль | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет |
Основные особенности | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode | DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode |
Тактовая частота, kHz | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 |
Frequency Adjust Range | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz |
Frequency Sync Range | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz |
Integrated Inductor | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет |
Ishutdown, мкА | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Isupply, мА | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 |
Max Phases | 1 | 1 | 1 | 1 | 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 | нет | нет | нет | нет |
Количество выходов | 1 | 1 | 1 | 1 | 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 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 -40 до 85 | от -40 до 85 | от -55 до 125 | от -55 до 125 |
Выходной ток, A | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Polyphase | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет | нет |
Sense Resistor | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR |
Switch Current, A | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Synchronous | да | да | да | да | да | да | да | да | да | да | да | да | да | да | да | да |
Topology | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
Vin Max, В | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 |
Vin Min, В | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Vout Max, В | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
Vout Maximum | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V |
Vout Min, В | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
Vref Accuracy Over Temp, % | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Экологический статус
LTC3851AEGN#PBF | LTC3851AEGN#TRPBF | LTC3851AEMSE#PBF | LTC3851AEMSE#TRPBF | LTC3851AEUD#PBF | LTC3851AEUD#TRPBF | LTC3851AHMSE#PBF | LTC3851AHMSE#TRPBF | LTC3851AIGN#PBF | LTC3851AIGN#TRPBF | LTC3851AIMSE#PBF | LTC3851AIMSE#TRPBF | LTC3851AIUD#PBF | LTC3851AIUD#TRPBF | LTC3851AMPMSE#PBF | LTC3851AMPMSE#TRPBF | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RoHS | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим | Совместим |
Application Notes
- Modeling and Loop Compensation Design of Switching Mode Power Supplies &mdash AN149PDF, 1.4 Мб, Файл опубликован: 23 мар 2015Выписка из документа
Модельный ряд
Серия: LTC3851A (16)
Классификация производителя
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers
- Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators