The MAX618 CMOS, PWM, step-up DC-DC converter generates output voltages up to 28V and accepts inputs from +3V to +28V. An internal 2A, 0.3Ω switch eliminates the need for external power MOSFETs while supplying output currents up to 500mA or more. A PWM control scheme combined with Idle Mode™ operation at light loads minimizes noise and ripple while maximizing efficiency over a wide load range. No-load operating current is 500µA, which allows efficiency up to 93%. A fast 250kHz switching frequency allows the use of small surface-mount inductors and capacitors. A shutdown mode extends battery life when the device is not in use. Adaptive slope compensation allows the MAX618 to accommodate a wide range of input and output voltages with a simple, single compensation capacitor. The MAX618 is available in a thermally enhanced 16-pin QSOP package that is the same size as an industry-standard 8-pin SO but dissipates up to 1W. An evaluation kit (MAX618EVKIT) is available to help speed designs. Applications * Industrial +24V and +28V Systems * LCD Displays * Palmtop Computers * Adjustable Output Voltage Up to +28V * Up to 93% Efficiency * Wide Input Voltage Range (+3V to +28V) * Up to 500mA Output Current at +12V https://elecena.pl/product/22330908/28v-pwm-step-up-dc-dc-converter 2022-12-28 https://elecena.pl/product/22330908/28v-pwm-step-up-dc-dc-converter 2025-01-20