资 源 简 介
The ISL6236A dual step-down, switch-mode power-supply(SMPS) controller generates logic-supply voltages inbattery-powered systems. The ISL6236A includes twopulse-width modulaTIon (PWM) controllers, 5V/3.3V and1.5V/1.05V. The output of SMPS1 can also be adjusted from0.7V to 5.5V. The SMPS2 output can be adjusted from 0V to2.5V by setTIng REFIN2 voltage. An opTIonal external chargepump can be monitored through SECFB. This device featuresa linear regulator providing 3.3V/5V, or adjustable from 0.7V to4.5V output via LDOREFIN. The linear regulator provides upto 100mA output current with automaTIc linear-regulatorbootstrapping to the BYP input. When in switchover, the LDOoutput can source up to 200mA. The ISL6236A includeson-board power-up sequencing, the power-good (POK)outputs, digital soft-start, and internal soft-stop outputdischarge that prevents negative voltages on shutdown.
