MAXIM INTEGRATED PRODUCTS MAX15062CATA+T 芯片, 直流/直流控制器

TheMAX15062CATA+Tis an ultra small, high efficiency, synchronous step-down DC-DC converter in 8 pin TDFN package. It has a peak current mode control architecture with a MODE pin that can be used to operate device in pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. PWM operation provides constant frequency operation at all loads & is useful in applications sensitive to variable switching frequency. PFM operation disables negative inductor current & additionally skips pulses at light loads for high efficiency. The low-resistance on-chip MOSFETs ensure high efficiency at full load & simplify PCB layout. To reduce input inrush current device offers an internal soft-start. The device also incorporates an EN/UVLO pin that allows user to turn on part at desired input-voltage level. An open-drain RESET(complementary) pin can be used for output-voltage monitoring. It is used in HVAC & building control, 4mA to 20mA current loops & general pu

. Supply voltage range is 4.5V to 60V . Automotive operating temperature range from -40°C to 125°C . Eliminates external components & reduces total cost, internal compensation & internal soft-start . Reduces number of DC-DC regulators to stock, adjustable 0.9V to 0.89 x VIN output voltage option . Delivers up to 300mA load current, shutdown current is 2.2μA (typ) . Reduces power dissipation, peak efficiency is 92%, PFM feature for high light-load efficiency . Switching frequency is 500KHz and maximum duty cycle is 91.5%(typ) . All ceramic capacitors, ultra compact layout & overtemperature protection . Monotonic start-up into pre-biased output