Регуляторы напряжения - Импульсные регуляторы MAX17552ATB+T

Импульсный понижающий DC-DC стабилизатор , регулируемый, 4.5В-60В вход, 2.2МГц, 0.8В-54В/100мА выход

The MAX17552ATB+T from Maxim Integrated Products is a 60V, 100mA, ultra small, high efficiency, synchronous step down DC to DC converter with 22µA no-load supply current in 10 pin TDFN package. The converter can deliver output current up to 100mA at output voltages of 0.8V to 0.9 x VIN. The output voltage is accurate to within ±1.75%. The device employ a peak-current-mode control architecture with a MODE pin that can be used to operate the device in pulse-width modulation (PWM) or pulse frequency modulation (PFM) control schemes. PWM operation provides constant frequency operation at all loads and is useful in applications sensitive to variable switching frequency. PFM operation disables negative inductor current and additionally skips pulses at light loads for high efficiency. The converter consumes only 22µA of no-load supply current in PFM mode. The low resistance, on-chip MOSFETs ensure high efficiency at full load and simplify PCB layout.

• Supply voltage range is 4V to 60V
• Operating temperature range from -40°C to 125°C
• Eliminates external components and reduces total cost
• Adjustable switching frequency range of 100KHz to 2.2MHz with external synchronization
• Peak efficiency is greater than 90%
• PFM feature for high light load efficiency
• Shutdown current is 1.2µA (typ)
• Peak current limit protection, overtemperature protection
• Programmable EN
• UVLO threshold, monotonic start-up into prebiased O

• P
• Open-drain RESET(active-low) pin allows output voltage monitoring
• 4-20mA Current-Loop Powered Sensors; Battery-Powered Equipment; General Purpose Point-of-Load;
• HVAC and Building Control; Industrial Sensors and Process Control; LDO Replacement

Области применения

Управление Питанием, Промышленное, Переносные Устройства, ОВКВ