Datasheet Texas Instruments LM3478 — Даташит

Производитель	Texas Instruments
Серия	LM3478

Datasheets

Цены

Купить LM3478 на РадиоЛоцман.Цены — от 7.99 до 292 ₽ 73 предложений от 35 поставщиков Микросхемы питания.Тип: Коммутационный контроллер серии LM3478Входное напряжение: 2,97…40 ВВыходное напряжение: 1,26 ВПотребляемый ток: 2,7 мАДиапазон рабочих температур: -40…+125 °СКонфигурация: выход -...
ChipWorker Весь мир	LM3478MM Texas Instruments	27 ₽	Купить
ЭК ЗИП Россия	LM3478MAX/NOPB Texas Instruments	от 111 ₽	Купить
Lixinc Electronics Весь мир	LM3478MMX/NOPB Texas Instruments	от 88 ₽	Купить
Maybo Весь мир	LM3478QMMX/NOPB Texas Instruments	113 ₽	Купить

Статус

Корпус / Упаковка / Маркировка

Параметры

Parameters / Models	LM3478MA/NOPB	LM3478MAX/NOPB	LM3478MM	LM3478MM/NOPB	LM3478MMX/NOPB
Duty Cycle(Max), %	100	100	100	100	100
Iout(Max), A	10	10	10	10	10
Iq(Typ), мА	2.7	2.7	2.7	2.7	2.7
Рабочий диапазон температур, C	от -40 до 125	от -40 до 125	от -40 до 125	от -40 до 125	от -40 до 125
Package Group	SOIC	SOIC	VSSOP	VSSOP	VSSOP
Rating	Catalog	Catalog	Catalog	Catalog	Catalog
Regulated Outputs	1	1	1	1	1
Special Features	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up
Switch Current Limit(Typ), A	10	10	10	10	10
Switching Frequency(Max), kHz	1000	1000	1000	1000	1000
Switching Frequency(Min), kHz	100	100	100	100	100
Тип	Controller	Controller	Controller	Controller	Controller
Vin(Max), В	40	40	40	40	40
Vin(Min), В	2.97	2.97	2.97	2.97	2.97
Vout(Max), В	500	500	500	500	500
Vout(Min), В	1.26	1.26	1.26	1.26	1.26

Экологический статус

Application Notes

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  In many systems backup power is provided either by batteries or simply by a large value capacitor. Inthese applications the capacitor would only provide the current when the primary power source fails.Further, these applications are usually for light load currents. During normal operation the backupcapacitors are kept charged up by a DC/DC converter. The challenge involved in an application
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  AN-1286 Compensation For The LM3478 Boost Controller (Rev. C)
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  The LM3478 is a low side N-Channel controller for switching regulators. Like many switching controllers,the added flexibility in component selection can cause problems for users when determining thecompensation scheme. It is the goal of this application report to present a decent groundwork to allow thereader to select with confidence the correct compensation components. To achieve this we l
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  AN-1484 Designing A SEPIC Converter (Rev. E)
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  In a single ended primary inductance converter (SEPIC) design, the output voltage can be higher or lowerthan the input voltage. The SEPIC converter shown in Figure 1 uses two inductors: L1 and L2. The twoinductors can be wound on the same core since the same voltages are applied to them throughout theswitching cycle.
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  Modeling & Design of Current Mode Control Boost Converters (Rev. B)
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  This application note presents a detail modeling and design of current mode control boost convertersoperating in the continuous conduction mode (CCM). Based on the derived small signal models, thedesign of a lag compensator for current mode control boost converters will be detailed. The LM3478 boostcontroller will be used in the example. Simulation and hardware measurement of frequency respo
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  AN-1990 Compensation for Current Mode Control SEPIC Converters (Rev. A)
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  The TexasInstrumentsLM3481boostcontrolleris a versatilelow-sideN-FEThigh-performancecontrollerfor switchingregulators.Thedevicehaswiderangeof applicationssuchas automotivestart-stopapplication,one-cellor two-cellLi-ionbattery-poweredportableBluetoothaudiosystem,industrialsystemisolatedsupplies,and so forth,and supportstopologi

Модельный ряд

Классификация производителя

• Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Up (Boost)> Boost Controller (External Switch)