Datasheet Linear Technology LTC3245MPMSE#TRPBF — Даташит

Производитель	Linear Technology
Серия	LTC3245
Модель	LTC3245MPMSE#TRPBF

Широкий диапазон VIN, малошумный повышающе-понижающий насос зарядки, 250 мА

Datasheets

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PDF, 550 Кб, Версия: A, Файл закачен: 31 июл 2016

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Цены

Купить LTC3245MPMSE#TRPBF на РадиоЛоцман.Цены — от 329 до 973 ₽ 8 предложений от 8 поставщиков , Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump
ChipWorker Весь мир	LTC3245MPMSE#TRPBF Analog Devices	348 ₽
EIS Components Весь мир	LTC3245MPMSE#TRPBF Analog Devices	605 ₽
Maybo Весь мир	LTC3245MPMSE#TRPBF Analog Devices	по запросу
Augswan Весь мир	LTC3245MPMSE#TRPBF Analog Devices	по запросу

Корпус / Упаковка / Маркировка

Корпус	MS-12E
Код корпуса	MSE
Индекс корпуса	05-08-1666

Параметры

Demo Boards	DC1802A
Design Tools	LTspice Model
Экспортный контроль	нет
Тактовая частота	450 kHz
Function	Regulated Buck-Boost Charge Pump
Ishutdown	4 мкА
Isupply	0.018 мА
Количество выходов	1
Рабочий диапазон температур	от -55 до 125 °C
Выходной ток	0.25 A
Выходное напряжение	Fixed 3.3V, 5V or Adjustable (2.5V to 5V)
Vin Max	38 В
Vin Min	2.7 В

Экологический статус

RoHS

Совместим

Статьи

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2.7V to 38V VIN Range, Low Noise, 250mA Buck-Boost Charge Pump Converter &mdash LT Journal
PDF, 230 Кб, Файл опубликован: 6 янв 2014
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design features 2.7V to 38V VIN Range, Low Noise, 250mA Buck-Boost
Charge Pump Converter
George H. Barbehenn The LTC3245 is a buck-boost regulator that dispenses with the traditional inductor,
and instead uses a capacitor charge pump. The LTC3245вЂ™s input voltage range is
2.7V to 38V, and it can be used without a feedback divider to produce one of two
fixed output voltages, 3.3V and 5V, or programmed via a feedback divider to any
output voltage from 2.5V to 5.5V. Maximum output current is 250mA. As a result of
its buck-boost topology, the LTC3245 is capable of regulating a voltage above or
below the input voltage, allowing it to satisfy automobile cold crank requirements.
The LTC3245 achieves efficiency of
80% when delivering 5V, 100m A from
a 12V source, significantly higher efficiency than an LDO, making it possible
to avoid the space and cost requirements of an LDO with a heat sink. The
LTC3245 is available in an exposed
pad MSOP12 or 3mm Г— 4mm DFN12. Because N and M are integers, a straight
charge pump cannot be used to produce an arbitrary output. Instead the
controller modifies VIN to produce VINвЂІ,
which is then fed to the charge pump.
The charge pump can operate in one of
three modes, buck, LDO or boost, resulting in ВЅVINвЂІ, VINвЂІ or 2VINвЂІ, respectively. CHARGE PUMP OPERATION By properly controlling both VINвЂІ and
the operating mode of the charge pump
any arbitrary voltage can be achieved.
When operating in buck mode, the …

Модельный ряд

Серия: LTC3245 (12)

LTC3245EDE#PBF LTC3245EDE#TRPBF LTC3245EMSE#PBF LTC3245EMSE#TRPBF LTC3245HMSE#PBF LTC3245HMSE#TRPBF LTC3245IDE#PBF LTC3245IDE#TRPBF LTC3245IMSE#PBF LTC3245IMSE#TRPBF LTC3245MPMSE#PBF LTC3245MPMSE#TRPBF

Классификация производителя

Power Management > Inductorless (Charge Pump) DC/DC Converters > High Voltage Charge Pumps | Regulated Buck-Boost Charge Pumps
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Power Management

Варианты написания:

LTC3245MPMSETRPBF, LTC3245MPMSE TRPBF