Datasheet Linear Technology LTC3546EUFD#PBF — Даташит

Производитель	Linear Technology
Серия	LTC3546
Модель	LTC3546EUFD#PBF

Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator

Datasheets

Просмотр и загрузка

PDF, 624 Кб, Язык: анг., Файл закачен: 27 мар 2018, Страниц: 30
Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator

Выписка из документа

Цены

Купить LTC3546EUFD#PBF на РадиоЛоцман.Цены — от 343 до 2 062 ₽ 34 предложений от 18 поставщиков IC: PMIC; преобразователь DC/DC; Uвх: 2,25÷5,5ВDC; Uвых: 0,6÷5ВDC
EIS Components Весь мир	LTC3546EUFD#PBF Analog Devices	343 ₽
Vigor Components Весь мир	LTC3546EUFD Linear Technology	от 465 ₽
ChipWorker Весь мир	LTC3546EUFD#PBF Analog Devices	518 ₽
ЭлектроПласт Россия	LTC3546EUFD#PBF Linear Technology	по запросу

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

Корпус / Упаковка / Маркировка

Корпус	4x5 QFN-28
Код корпуса	UFD
Индекс корпуса	05-08-1712

Параметры

Архитектура	Constant Frequency Current Mode
Demo Boards	DC1086A,DC1087A
Design Tools	LTspice File
Экспортный контроль	нет
Основные особенности	Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Tracking, 100% Duty Cycle
Тактовая частота	2250 kHz
Frequency Adjust Range	750kHz - 4MHz
Frequency Sync Range	750kHz - 4MHz
Integrated Inductor	нет
Ishutdown	0.2 мкА
Isupply	0.16 мА
Max Phases	1
Monolithic	да
Количество выходов	2
Рабочий диапазон температур	от 0 до 85 °C
Выходной ток	2 A
Output Current 2	2 A
Polyphase	нет
Switch Current	3.2 A
Switch Current 2	3.2 A
Synchronous	да
Topology	Buck
Topology 1	Buck
Topology 2	Buck
Vin Max	5.5 В
Vin Min	2.25 В
Vout Max	5 В
Vout Max 2	5 В
Vout Maximum	Vin
Vout Min	0.6 В
Vout Min 2	0.8 В

Экологический статус

RoHS

Совместим

Design Notes

Скачать
Dual Output Buck Regulator with Current Partitioning Optimizes Efficiency in Space-Sensitive Applications &mdash DN460
PDF, 79 Кб, Файл опубликован: 24 фев 2009
Выписка из документа
Dual Output Buck Regulator with Current Partitioning
Optimizes Efficiency in Space-Sensitive Applications
Design Note 460
Johan Strydom
Introduction
The LTC В®3546 is a dual output current mode buck regulator with п¬‚exible output current partitioning. Beyond
the advantages normally associated with dual output
regulators (reduced size, cost, EMI and part count, with
improved efп¬Ѓciency), the LTC3546вЂ™s outputs can be
partitioned for either 3A and 1A outputs, or two 2A outputs. This increases its application range and simpliп¬Ѓes
multiple supply rail designs. A conп¬Ѓgurable Burst ModeВ®
clamp for each output sets the current transition level
between Burst Mode operation and forced continuous
conduction mode to optimize efп¬Ѓciency over the entire
output range. An adjustable switching frequency up to
4MHz and internal power MOSFET switches allow for
small and compact footprints. The adjustable switching frequency can be set from
750kHz to 4MHz by an external resistor or synchronized
to an external clock, allowing for a signiп¬Ѓcant reduction in
overall solution size through the reduction of the output
capacitors and inductors. Furthermore, the 180 degree
phase shift between outputs reduces input ripple current
when compared with two independent regulators, as the …

Модельный ряд

Серия: LTC3546 (8)

LTC3546EFE#PBF LTC3546EFE#TRPBF LTC3546EUFD#PBF LTC3546EUFD#TRPBF LTC3546IFE#PBF LTC3546IFE#TRPBF LTC3546IUFD#PBF LTC3546IUFD#TRPBF

Классификация производителя

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

Варианты написания:

LTC3546EUFDPBF, LTC3546EUFD PBF