Datasheet Linear Technology LTC3860 — Даташит

Производитель	Linear Technology
Серия	LTC3860

Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Current Sharing

Datasheets

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PDF, 451 Кб, Язык: анг., Файл закачен: 24 сен 2017, Страниц: 36
Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Current Sharing

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Цены

Купить LTC3860 на РадиоЛоцман.Цены — от 196 до 1 196 ₽ 29 предложений от 22 поставщиков IC: PMIC; преобразователь DC/DC; Uвх: 3÷24ВDC; QFN32; Ch: 1
Akcel Весь мир	LTC3860IUH#TRPBF Analog Devices	от 196 ₽
Utmel Весь мир	LTC3860EUH#TRPBF Analog Devices	от 207 ₽
Acme Chip Весь мир	LTC3860IUH Linear Technology	по запросу
FAV Technology Весь мир	LTC3860EUH#PBF	по запросу

Выбираем схему BMS для заряда литий-железофосфатных (LiFePO4) аккумуляторов

Корпус / Упаковка / Маркировка

	LTC3860EUH#PBF	LTC3860EUH#TRPBF	LTC3860IUH#PBF	LTC3860IUH#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	LTC3860EUH#PBF	LTC3860EUH#TRPBF	LTC3860IUH#PBF	LTC3860IUH#TRPBF
Архитектура	Constant Frequency Voltage Mode	Constant Frequency Voltage Mode	Constant Frequency Voltage Mode	Constant Frequency Voltage Mode
Demo Boards	DC1184A,DC1755A	DC1184A,DC1755A	DC1184A,DC1755A	DC1184A,DC1755A
Design Tools	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File
Экспортный контроль	нет	нет	нет	нет
Основные особенности	Differential Remote Sense, PolyPhase, Resistor Set Frequency, External Synchronization, PLL, DCR Current Sense, Power Good, Tracking	Differential Remote Sense, PolyPhase, Resistor Set Frequency, External Synchronization, PLL, DCR Current Sense, Power Good, Tracking	Differential Remote Sense, PolyPhase, Resistor Set Frequency, External Synchronization, PLL, DCR Current Sense, Power Good, Tracking	Differential Remote Sense, PolyPhase, Resistor Set Frequency, External Synchronization, PLL, DCR Current Sense, Power Good, Tracking
Тактовая частота, kHz	1250	1250	1250	1250
Frequency Adjust Range	250kHz - 1.25MHz	250kHz - 1.25MHz	250kHz - 1.25MHz	250kHz - 1.25MHz
Frequency Sync Range	250kHz - 1.25MHz	250kHz - 1.25MHz	250kHz - 1.25MHz	250kHz - 1.25MHz
Integrated Inductor	нет	нет	нет	нет
Ishutdown, мкА	50	50	50	50
Isupply, мА	14	14	14	14
Max Phases	2, 3, 4, 6, 12	2, 3, 4, 6, 12	2, 3, 4, 6, 12	2, 3, 4, 6, 12
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	40	40	40	40
Output Current 2, A	40	40	40	40
Polyphase	да	да	да	да
Sense Resistor	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR
Switch Current, A	40	40	40	40
Switch Current 2, A	40	40	40	40
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	24	24	24	24
Vin Min, В	3	3	3	3
Vout Max, В	5	5	5	5
Vout Maximum	Vcc-0.5V	Vcc-0.5V	Vcc-0.5V	Vcc-0.5V
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

	LTC3860EUH#PBF	LTC3860EUH#TRPBF	LTC3860IUH#PBF	LTC3860IUH#TRPBF
RoHS	Совместим	Совместим	Совместим	Совместим

Статьи

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Power Supply Works with FET Drivers, DrMOS and Power Blocks for Flexible Placement Near Microprocessors &mdash LT Journal
PDF, 1.3 Мб, Файл опубликован: 15 июл 2011
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Power Supply Works with FET Drivers, DrMOS and Power
Blocks for Flexible Placement Near Microprocessors
Theo Phillips As microprocessors demand progressively more current at lower voltages, it becomes
important to minimize conduction losses by placing the power supply as close to
the load as possible. This increases the value of every square millimeter of board
space near the loadвЂ”particularly when multiple power stages are used. It is also
important to locate the DC/DC controller away from high current paths, which can
be difficult when the MOSFET gate drivers are in the controller package, because the
gate traces must also be kept short. Sometimes the best solution is to use external
power train devices or discrete N-channel MOSFETs and associated gate drivers.
The LTC3860 is a dual output step-down
DC/DC controller designed to work in
conjunction with drivers or power train
devices such as DrMOS and power blocks,
enabling flexible design configurations
with PolyPhaseВ® operation. Up to 12
stages can be paralleled to increase output
current and clocked out of phase to minimize input and output filtering (FigureВ 1).
In PolyPhase configurations, both output voltage (VOUT) and ground terminals
are monitored using a single differential
amplifier, enabling tight regulation even
where IR losses occur through vias, trace
runs and interconnects. Regulation is …

Модельный ряд

Серия: LTC3860 (4)

LTC3860EUH#PBF LTC3860EUH#TRPBF LTC3860IUH#PBF LTC3860IUH#TRPBF

Классификация производителя

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