Коммутационные контроллеры MAX17501BATB+T

Синхронный понижающий , импульсный стабилизатор, фиксированный, 4.5В до 60В, 5В/0.5А выход, TDFN-10

The MAX17501BATB+T from Maxim Integrated Products is a 60V, 500mA, ultra small, high efficiency, synchronous step down DC to DC converter in 10 pin TDFN package. This DC to DC converter offered in 5V fixed output voltage (0.9V to 92%VIN) while delivering up to 500mA of current. The output voltage is accurate to within ±1.7% over -40°C to +125°C. The device features peak current mode control with pulse width modulation (PWM). Users can choose devices with either pulse frequency modulation (PFM) or forced PWM scheme. PFM devices skip pulses at light load for higher efficiency while forced PWM devices operate with fixed switching frequency at any load for noise sensitive applications. The low resistance, on-chip MOSFETs ensure high efficiency at full load and simplify the layout. Typically used at industrial process control, HVAC and building control, base station, VOIP, telecom, home theatre, battery powered equipment and general-purpose point-of-load.

• Input voltage range from 4.5V to 60V, 600KHz switching frequency, 90µA input supply current
• High industrial -40°C to +125°C ambient operating temperature range
• Reduces power dissipation, peak efficiency > 90%, PFM feature for high light-load efficiency
• 5V fixed output voltage, shutdown current = 0.9µA (typ), 32768 cycles HICCUP timeout
• No schottky-synchronous operation for high efficiency and reduced cost
• Eliminates external components, reduce cost and operates reliably in adverse industrial environment
• Hiccup mode current limit, sink current limit and autoretry start-up
• Built-in output voltage monitoring (open-drain RESET(active-low) pin)
• Resistor programmable EN
• UVLO threshold, adjustable soft-start and prebiased power-up

• 94% maximum duty cycle, 5ns LX dead time, 75ns minimum on-time
• Base Station, VOIP, Telecom; Battery-Powered Equipment; General-Purpose Point-of-Load; Home Theater; HVAC and Building Control; Industrial Process Control

Области применения

Управление Питанием, Промышленное, Автоматизация и Управление Процессами, Автоматизация Зданий