Datasheet Linear Technology LTC3539-2 — Даташит

Производитель	Linear Technology
Серия	LTC3539-2

Синхронные повышающие преобразователи постоянного тока в постоянный ток 2А, 1 МГц/2 МГц

Datasheets

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PDF, 194 Кб, Язык: анг., Файл закачен: 21 сен 2017, Страниц: 14
2A, 1MHz/2MHz Synchronous Step-Up DC/DC Converters

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Цены

Купить LTC3539-2 на РадиоЛоцман.Цены
Кремний Россия и страны СНГ	LTC3539-2: 0.7-5Vin [email protected] Linear Technology	по запросу

Корпус / Упаковка / Маркировка

	LTC3539EDCB-2#PBF	LTC3539EDCB-2#TRMPBF	LTC3539EDCB-2#TRPBF
N	1	2	3
Корпус	2x3 DFN-8 Габаритный чертеж корпуса	2x3 DFN-8 Габаритный чертеж корпуса	2x3 DFN-8 Габаритный чертеж корпуса
Код корпуса	DCB	DCB	DCB
Индекс корпуса	05-08-1718	05-08-1718	05-08-1718
Количество выводов	8	8	8

Параметры

Parameters / Models	LTC3539EDCB-2#PBF	LTC3539EDCB-2#TRMPBF	LTC3539EDCB-2#TRPBF
Архитектура	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC1260A-A,DC1260A-B	DC1260A-A,DC1260A-B	DC1260A-A,DC1260A-B
Design Tools	LTspice File	LTspice File	LTspice File
Экспортный контроль	нет	нет	нет
Основные особенности	Output Disconnect, Burst Mode	Output Disconnect, Burst Mode	Output Disconnect, Burst Mode
Тактовая частота, kHz	2000	2000	2000
Frequency Adjust Range	1MHz or 2MHz	1MHz or 2MHz	1MHz or 2MHz
Integrated Inductor	нет	нет	нет
Ishutdown, мкА	0.01	0.01	0.01
Isupply, мА	0.01	0.01	0.01
Monolithic	да	да	да
Количество выходов	1	1	1
Рабочий диапазон температур, °C	от 0 до 85	от 0 до 85	от 0 до 85
Polyphase	нет	нет	нет
Switch Current, A	2.6	2.6	2.6
Synchronous	да	да	да
Topology	Boost	Boost	Boost
Vin Max, В	5	5	5
Vin Min, В	0.5	0.5	0.5
Vin Min Startup, В	0.7	0.7	0.7
Vout Max, В	5.25	5.25	5.25
Vout Min, В	1.5	1.5	1.5
Vswitch Max, В	6	6	6

Экологический статус

	LTC3539EDCB-2#PBF	LTC3539EDCB-2#TRMPBF	LTC3539EDCB-2#TRPBF
RoHS	Совместим	Совместим	Совместим

Другие варианты исполнения

LTC3539 LTC3539

Design Notes

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Complete Energy Utilization Improves Run Time of a Supercap Ride-Through Application by 40% &mdash DN485
PDF, 106 Кб, Файл опубликован: 26 окт 2010
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Complete Energy Utilization Improves Run Time of a Supercap
Ride-Through Application by 40% вЂ“ Design Note 485
George H. Barbehenn
Introduction
Many electronic systems require a local power source that
allows them to ride through brief main power interruptions without shutting down. Some local power sources
must be available to carry out a controlled shutdown if
the main power input is abruptly removed. Complete Energy Utilization Maximizes Run Time
of Supercap Ride-Through Application
Figure 1 shows a complete 3.3V/200mA ride-through application that maximizes the amount of power extracted
from the supercap to support the load. A battery backup can supply power in the event of a
mains shutdown, but batteries are not well suited to
this particular application. Although batteries can store
signiп¬Ѓcant amounts of energy, they cannot deliver much
power due to their signiп¬Ѓcant source impedance. Also,
batteries have п¬Ѓnite lives of ~2 to 3 years, and the maintenance required for rechargeable batteries is substantial. The LTC В®4425 complete 2A supercapacitor charger. It
clamps the individual cell voltages to ensure that the
cells do not overvoltage during charging and balances
the cells throughout charge and discharge. The main components of the ride-through application
include: The LTC3606 micropower buck regulator produces
the regulated 3.3V output. Supercapacitors are well suited to such ride-through
applications. Their low source impedance allows them
to supply signiп¬Ѓcant power for a relatively short time, …

Модельный ряд

Серия: LTC3539-2 (3)

LTC3539EDCB-2#PBF LTC3539EDCB-2#TRMPBF LTC3539EDCB-2#TRPBF

Классификация производителя

Power Management > Switching Regulator > Step-Up (Boost) Regulators > Micropower Boost | Internal Power Switch Boost