DATASHEET
ISL6236
High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers
FN6373 Rev 6.00 A...
DATASHEET
ISL6236
High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers
FN6373 Rev 6.00 April 29, 2010
The ISL6236 dual step-down, switch-mode power-supply (SMPS) controller generates logic-supply voltages in battery-powered systems. The ISL6236 include two pulse-width modulation (PWM) controllers, 5V/3.3V and 1.5V/1.05V. The output of SMPS1 can also be adjusted from 0.7V to 5.5V. The SMPS2 output can be adjusted from 0V to 2.5V by setting REFIN2 voltage. An optional external charge pump can be monitored through SECFB. This device features a linear
regulator providing 3.3V/5V, or adjustable from 0.7V to 4.5V output via LDOREFIN. The linear
regulator provides up to 100mA output current with automatic linear-
regulator bootstrapping to the BYP input. When in switchover, the LDO output can source up to 200mA. The ISL6236 includes on-board power-up sequencing, the power-good (POK) outputs, digital soft-start, and internal soft-stop output discharge that preve...