LTC7813IUH#PBF, DC/DC CONTROLLER, 850KHZ, QFN-32

PartNumber: LTC7813IUH#PBF
Ном. номер: 8097612108
Производитель: Linear Technology
LTC7813IUH#PBF, DC/DC CONTROLLER, 850KHZ, QFN-32
Доступно на заказ 73 шт. Отгрузка со склада в Москве 6 недель.
960 × = 960
от 25 шт. — 694 руб.

Описание

The LTC7813IUH#PBF is a low IQ, 60V synchronous boost + buck controller in 32 pin QFN package. This high performance synchronous controller drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controller that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that can be above, below or equal to the output voltage. When biased from the output of the boost regulator, IC can operate from an input supply as low as 2.2V after start-up. The 34µA no-load quiescent current (both channels on) extends operating runtime in battery powered systems. Unlike conventional buck-boost regulator IC's cascaded boost + buck solution has continuous, nonpulsating, input and output currents, substantially reducing voltage ripple and EMI. It has independent feedback and compensation points for the boost and buck regulation loops, enabling a fast output transient response that can be externally optimized.

• Supply voltage range from 4.5V to 60V
• Output remains in regulation through input dips (e.g. cold crank) down to 2.2V
• Operating temperature range from -40°C to 125°C
• Adjustable gate drive level 5V to 10V (opti-drive)
• Low EMI with low input and output ripple, high light load efficiency
• Fast output transient response, no external bootstrap diodes required
• Low operating IQ of 29µA (one channel on), 34µA (both channels on)
• RSENSE or lossless DCR current sensing, boost output voltage up 60V
• Buck output voltage range from 0.8V <= vout=""></=><=></=>
• Phase lockable frequency (75KHz to 850KHz)

Полупроводники - Микросхемы\Микросхемы Управления Питанием\DC - DC Устройства Управления Питанием
Код: 2535691

Технические параметры

Минимальное Напряжение Питания
4.5В
Максимальное Напряжение Питания
60В
Количество Выходов
2 Выхода
Рабочий Цикл (%)
100%
Стиль Корпуса ИС Контроллера
QFN
Количество Выводов
32вывод(-ов)
Частота Коммутации
850кГц
Топология (Общая Схема Соединений)
Синхронный Повышающий, Синхронный Понижающий
Минимальная Рабочая Температура
-40°C
Максимальная Рабочая Температура
125°C
Упаковка
Поштучно
Уровень Чувствительности к Влажности (MSL)
MSL 1 - Безлимитный

Дополнительная информация

Datasheet LTC7813IUH#PBF