DC-DC преобразователи интегральные MAX1765EUE+

Импульсный повышающий DC-DC стабилизатор , регулируемый, 0.7В-5.5В (Vin), 2.5В-5.5В/800мА, 1МГц

The MAX1765EUE+ is an 800mA, low noise, step-up DC-DC converter with 500mA linear regulator in 16 pin TSSOP package. This device operates at a high 1MHz fixed frequency while maintaining an exceptionally low quiescent supply current (200µA). It's small external components and tiny package make this device an excellent choice for small hand-held applications that requires longest possible battery life. Uses a synchronous-rectified pulse width modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from a wide range of input sources such as one to three alkaline or NiCd/NiMH cells or a single lithium-ion (Li+) cell. The low-dropout (LDO) linear regulator and DC-DC converter have separate shutdown control. The high efficiency, low noise, converter used in battery-powered wireless applications and PCS phones, personal communicators, palmtop computers.

• Input voltage range from 0.7V to 5.5V
• Operating temperature range from -40°C to 85°C
• Up to 93% efficiency
• 500mA LDO linear regulator
• 2.85V linear regulator output or adjustable (1.25V to 5V)
• Low 125mV dropout at 500mA
• Logic controlled shutdown is 0.1µA
• Adjustable inductor current limit and soft start
• Thermal shutdown

Области применения

Управление Питанием, Промышленное, Переносные Устройства