LT3502IMS#PBF, DC-DC Switching Buck Regulator, Adjustable, 3 to 40V in, 0.8V/0.5A out, MSOP-10
см. техническую документацию
Описание
LT3502 is a current mode PWM step-down DC/DC converter with an internal 500mA power switch. The wide input voltage makes the LT3502 suitable for regulating power from a wide variety of sources, including 24V industrial supplies and automotive batteries. Its high operating frequency allows the use of tiny, low cost inductors and capacitors, resulting in a very small solution. Cycle-by-cycle current limit and frequency foldback provide protection against shorted outputs. Soft-start and frequency foldback eliminates input current surge during start-up. DA current sense provides further protection in fault conditions. An internal boost diode reduces component count. Typical applications are automotive systems, battery-powered equipment, wall transformer regulation, distributed supply regulation.
• Undervoltage lockout is 2.6 to 3V at TA = 25°C, VIN = 10V, V active-low SHDN = 5V, VBOOST = 15V
• Quiescent current at shutdown is 2µA at V active-low SHDN = 0V, TA = 25°C, VIN = 10V
• Switching frequency is 1.1MHz
• Short-circuit robust, internal boost diode
• Internally compensated
• Maximum duty cycle is 90% at 100mA load, TA = 25°C. VIN = 10V, V active-low SHDN = 5V, VBOOST = 15V
• Feedback voltage is 0.8V
• 10-lead plastic MSOP package
• -40°C to 125°C temperature rating
Технические параметры
Количество выходов | 1выход(-ов) | |
Выходной Ток | 500мА | |
Количество Выводов | 10вывод(-ов) | |
Корпус ИС DC / DC Преобразователя | MSOP | |
Максимальная Рабочая Температура | 125°C | |
Максимальное Входное Напряжение | 40В | |
Минимальное Входное Напряжение | 3В | |
Минимальное Выходное Напряжение | 800мВ | |
Топология (Общая Схема Соединений) | Понижающий(Понижающий) | |
Уровень Чувствительности к Влажности (MSL) | MSL 1-Безлимитный | |
Частота Коммутации | 2.25МГц |
Техническая документация
Дополнительная информация
Калькуляторы группы «DC-DC Преобразователи»
Типы корпусов импортных микросхем