Регуляторы напряжения - Импульсные регуляторы MAX1722ELT+

Импульсный DC/DC повышающий стабилизатор , регулируемый, 910мВ-5.5В вход, 2В-5.5В, 150мА, µDFN-6

The MAX1722ELT+ is a 1.5µA IQ, adjustable output step-up DC to DC converter in 6 pin µDFN package. This compact, high efficiency, step-up DC-DC converter features an extremely low 1.5µA quiescent supply current to ensure highest possible light load efficiency. Device is optimized for operation from one to two alkaline or nickel metal hydride (NiMH) cells or a single Li+ cell. It is ideal for applications where extremely low quiescent current and ultra small size is critical. A built-in synchronous rectification significantly improves efficiency and reduces size and cost by eliminating need for an external schottky diode. It features 0.5ohm N-channel power switch and proprietary noise reduction circuitry which suppresses electromagnetic interference (EMI) caused by inductor in many step-up applications. It is used in pagers, remote controls, remote wireless transmitters, digital still cameras, single-cell battery powered devices, MP3 players and personal digital assistants.

• Supply voltage range from 0.8V to 5.5V
• Operating temperature range from -40°C to 85°C
• Up to 90% efficiency
• Logic controlled shutdown current of 0.1µA
• Output voltage accuracy of ±1%
• Adjustable output voltage from 2V to 5.5V
• Up to 150mA output current
• Start-up voltage of 0.91V
• Internal EMI suppression
• No external diode or FETs needed

Области применения

Управление Питанием, Переносные Устройства, Потребительская Электроника, Медицинское