Datasheet Linear Technology LTC3773 — Даташит

Производитель	Linear Technology
Серия	LTC3773

Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking

Datasheets

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PDF, 485 Кб, Язык: анг., Файл закачен: 23 сен 2017, Страниц: 32
Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking

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Цены

Купить LTC3773 на РадиоЛоцман.Цены — от 348 до 5 291 ₽ 37 предложений от 22 поставщиков IC: PMIC; преобразователь DC/DC; Uвх: 3,3÷36ВDC; Uвых: 0,6÷5ВDC
EIS Components Весь мир	LTC3773EG#PBF Analog Devices	348 ₽
ЧипСити Россия	LTC3773EUHF#TRPBF Linear Technology	433 ₽
Vigor Components Весь мир	LTC3773EG Linear Technology	от 587 ₽
Acme Chip Весь мир	LTC3773EUHF Analog Devices	по запросу

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

Корпус / Упаковка / Маркировка

	LTC3773EG#PBF	LTC3773EG#TRPBF	LTC3773EUHF#PBF	LTC3773EUHF#TRPBF
N	1	2	3	4
Корпус	SSOP-36 Габаритный чертеж корпуса	SSOP-36 Габаритный чертеж корпуса	5x7 QFN-38 Габаритный чертеж корпуса	5x7 QFN-38 Габаритный чертеж корпуса
Код корпуса	G	G	UHF	UHF
Индекс корпуса	05-08-1640 (G36)	05-08-1640 (G36)	05-08-1701	05-08-1701
Количество выводов	36	36	38	38

Параметры

Parameters / Models	LTC3773EG#PBF	LTC3773EG#TRPBF	LTC3773EUHF#PBF	LTC3773EUHF#TRPBF
Архитектура	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC908A,DC913A	DC908A,DC913A	DC908A,DC913A	DC908A,DC913A
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Экспортный контроль	нет	нет	нет	нет
Основные особенности	Tracking, PolyPhase, Power Good, Selectable Switching Frequency, External Synchronization, Burst Mode	Tracking, PolyPhase, Power Good, Selectable Switching Frequency, External Synchronization, Burst Mode	Tracking, PolyPhase, Power Good, Selectable Switching Frequency, External Synchronization, Burst Mode	Tracking, PolyPhase, Power Good, Selectable Switching Frequency, External Synchronization, Burst Mode
Тактовая частота, kHz	700	700	700	700
Frequency Adjust Range	220kHz, 400kHz, 560kHz	220kHz, 400kHz, 560kHz	220kHz, 400kHz, 560kHz	220kHz, 400kHz, 560kHz
Frequency Sync Range	160kHz - 700kHz	160kHz - 700kHz	160kHz - 700kHz	160kHz - 700kHz
Integrated Inductor	нет	нет	нет	нет
Ishutdown, мкА	20	20	20	20
Isupply, мА	2.8	2.8	2.8	2.8
Max Phases	3	3	3	3
Monolithic	нет	нет	нет	нет
Количество выходов	3	3	3	3
Рабочий диапазон температур, °C	от 0 до 85	от 0 до 85	от 0 до 85	от 0 до 85
Выходной ток, A	25	25	25	25
Output Current 2, A	25	25	25	25
Output Current 3, A	25	25	25	25
Polyphase	да	да	да	да
Sense Resistor	Rsense	Rsense	Rsense	Rsense
Switch Current, A	25	25	25	25
Switch Current 2, A	25	25	25	25
Switch Current 3, 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
Topology 3	Buck	Buck	Buck	Buck
Vin Max, В	36	36	36	36
Vin Min, В	3.3	3.3	3.3	3.3
Vout Max, В	5	5	5	5
Vout Max 2, В	5	5	5	5
Vout Max 3, В	5	5	5	5
Vout Maximum	0.99Vin	0.99Vin	0.99Vin	0.99Vin
Vout Min, В	0.6	0.6	0.6	0.6
Vout Min 2, В	0.6	0.6	0.6	0.6
Vout Min 3, В	0.6	0.6	0.6	0.6
Vref Accuracy Over Temp, %	1.5	1.5	1.5	1.5

Экологический статус

	LTC3773EG#PBF	LTC3773EG#TRPBF	LTC3773EUHF#PBF	LTC3773EUHF#TRPBF
RoHS	Совместим	Совместим	Совместим	Совместим

Design Notes

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Triple Output 3-Phase Controller Saves Space and Improves Performance in High Density Power Converters &mdash DN409
PDF, 94 Кб, Файл опубликован: 29 янв 2007
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advertisement Triple Output 3-Phase Controller Saves Space and Improves
Performance in High Density Power Converters
Design Note 409
Mike Shriver
TodayвЂ™s telecommunications, server and network applications require power from a multitude of voltage
rails. Having more than ten rails ranging from 5V to 1V
or less is common. These boards are typically crowded
with heat-producing FPGAs or microprocessors, thus
demanding power converters that are both compact and
highly efп¬Ѓcient. Furthermore, the converters may need
to meet other requirements such as a fast load step
response and rail tracking. 220kHz, 400kHz or 560kHz, or it can be synchronized
to an external clock between 160kHz and 700kHz. The
controller can step down from input voltages as high as
36V and the output voltage can be programmed from
0.6V to 5V.
Figure 1 shows a high density triple output DC/DC converter with each output delivering up to 5A using the
LTC3773 controller. Figure 2 shows the efп¬Ѓciency of each
output versus load current; where up to 93% efп¬Ѓciency is
achieved. Reductions in space are realized by the use of
dual channel FETs and a switching frequency of 400kHz
which permits the use of 7mm Г— 7mm ferrite inductors. The LTCВ® 3773 switching regulator meets and even goes
beyond the above requirements. This device is a 3-phase, …

Модельный ряд

Серия: LTC3773 (4)

LTC3773EG#PBF LTC3773EG#TRPBF LTC3773EUHF#PBF LTC3773EUHF#TRPBF

Классификация производителя

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