Datasheet Linear Technology LTC3865-1 — Даташит

Производитель	Linear Technology
Серия	LTC3865-1

Двойной, 2-фазный синхронный контроллер постоянного / постоянного тока с выбираемыми выводами

Datasheets

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PDF, 415 Кб, Язык: анг., Файл закачен: 24 сен 2017, Страниц: 38
Dual, 2-Phase Synchronous DC/DC Controller with Pin Selectable Outputs

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Цены

Купить LTC3865-1 на РадиоЛоцман.Цены Dual, 2-Phase Synchronous DC/DC Controller with Pin Selectable Outputs
Кремний Россия и страны СНГ	LTC3865-1: 4.5-14Vin 1.8/3.3Vout@5A Linear Technology	по запросу
Океан Электроники Россия	LTC3865-1	по запросу

Корпус / Упаковка / Маркировка

	LTC3865EUH-1#PBF	LTC3865EUH-1#TRPBF	LTC3865IUH-1#PBF	LTC3865IUH-1#TRPBF
N	1	2	3	4
Корпус	5x5 QFN-32 Габаритный чертеж корпуса	5x5 QFN-32 Габаритный чертеж корпуса	5x5 QFN-32 Габаритный чертеж корпуса	5x5 QFN-32 Габаритный чертеж корпуса
Код корпуса	UH	UH	UH	UH
Индекс корпуса	05-08-1693	05-08-1693	05-08-1693	05-08-1693
Количество выводов	32	32	32	32

Параметры

Parameters / Models	LTC3865EUH-1#PBF	LTC3865EUH-1#TRPBF	LTC3865IUH-1#PBF	LTC3865IUH-1#TRPBF
Архитектура	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC1479A,DC1480A	DC1479A,DC1480A	DC1479A,DC1480A	DC1479A,DC1480A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File
Экспортный контроль	нет	нет	нет	нет
Основные особенности	Pin Selectable Output Voltage, PolyPhase, DCR Current Sense, External Synchronization, Resistor Set Frequency, Tracking, Power Good	Pin Selectable Output Voltage, PolyPhase, DCR Current Sense, External Synchronization, Resistor Set Frequency, Tracking, Power Good	Pin Selectable Output Voltage, PolyPhase, DCR Current Sense, External Synchronization, Resistor Set Frequency, Tracking, Power Good	Pin Selectable Output Voltage, PolyPhase, DCR Current Sense, External Synchronization, Resistor Set Frequency, Tracking, Power Good
Тактовая частота, kHz	770	770	770	770
Frequency Adjust Range	250kHz - 770kHz	250kHz - 770kHz	250kHz - 770kHz	250kHz - 770kHz
Frequency Sync Range	250kHz - 770kHz	250kHz - 770kHz	250kHz - 770kHz	250kHz - 770kHz
Integrated Inductor	нет	нет	нет	нет
Ishutdown, мкА	30	30	30	30
Isupply, мА	3	3	3	3
Max Phases	2	2	2	2
Monolithic	нет	нет	нет	нет
Количество выходов	2	2	2	2
Рабочий диапазон температур, °C	от 0 до 85	от 0 до 85	от -40 до 85	от -40 до 85
Выходной ток, A	25	25	25	25
Output Current 2, A	25	25	25	25
Polyphase	да	да	да	да
Sense Resistor	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR
Switch Current, A	25	25	25	25
Switch Current 2, A	25	25	25	25
Synchronous	да	да	да	да
Topology	Buck	Buck	Buck	Buck
Topology 1	Buck	Buck	Buck	Buck
Topology 2	Buck	Buck	Buck	Buck
Vin Max, В	38	38	38	38
Vin Min, В	4.5	4.5	4.5	4.5
Vout Max, В	5	5	5	5
Vout Maximum	5V	5V	5V	5V
Vout Min, В	0.6	0.6	0.6	0.6
Vout Min 2, В	0.6	0.6	0.6	0.6
Vref Accuracy Over Temp, %	1	1	1	1

Экологический статус

	LTC3865EUH-1#PBF	LTC3865EUH-1#TRPBF	LTC3865IUH-1#PBF	LTC3865IUH-1#TRPBF
RoHS	Совместим	Совместим	Совместим	Совместим

Другие варианты исполнения

LTC3865 LTC3865

Статьи

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Dual Output Step-Down Regulator Features Pin Selectable Outputs, DCR Sensing, Reverse Current Protection and a 5mm × 5mm QFN &mdash LT Journal
PDF, 426 Кб, Файл опубликован: 1 апр 2010
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design features Dual Output Step-Down Regulator Features Pin Selectable
Outputs, DCR Sensing, Reverse Current Protection and a
5mm Г— 5mm QFN
Stephanie Dai The LTC3865 is a high performance step-down controller with two constant frequency,
current mode, synchronous buck controllers and on-chip drivers. It offers high output
current capability over a wide input range. An important feature offered by the LTC3865 is its
highly accurate programmable output voltage. Internal precision feedback resistors make it
possible to select from nine different output voltages via two VID pins. The internal resistors
reduce the number of external components and assure 1% accuracy for low voltage rails.
The LTC3865 is suitable for applications
with input voltages up to 38V and output
voltages up to 5V. It can be synchronized
to a frequency of up to 750kHz and comes
in a compact 5mm Г— 5mm QFN package. The part is also capable of inductor DCR sensing, allowing for increased
efficiencies at higher load currents. These
features are ideal for wide input voltage
range, high current applications where
design solution footprint size is restricted. them floating can result in nine different output voltages from 0.6V to 5V (see
Table 1). Pin programming eliminates
at least four external feedback resistors, making the overall design solution
space conservative and cost effective. If
an application requires an output voltage not supported by pin programming,
one still has the option to use external …

Модельный ряд

Серия: LTC3865-1 (4)

LTC3865EUH-1#PBF LTC3865EUH-1#TRPBF LTC3865IUH-1#PBF LTC3865IUH-1#TRPBF

Классификация производителя

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | External Power Switch Buck Controllers