AAT2687

PRODUCT DATASHEET AAT2687 SystemPowerTM PMIC Solution for 24V Systems with 2 High Performance Step-Down Converters Features 2-Output Step-Down Converters: ▪ Channel 1 Step-Down: VIN1 = 6V to 24V VOUT1 Adjustable from 1.5V to 5.5V IOUT1 up to 4.5A High Switching Frequency Voltage Mode Control PWM Fixed Frequency for Low-Ripple ▪ Channel 2 (LDO): VIN2 = 2.7V to 5.5V IOUT2 up to 600mA 1V Dropout Voltage at 600mA High Accuracy ±1.5% Small Solution Size ▪ System On a Chip ▪ Ultra-small External L/C Shutdown Current <35μA Independent Enable Pins Programmable Over-Current Protection Over-Temperature Protection Internal Soft Start 4x5mm 24-Pin TQFN Low Profile Thermally Enhanced Package -40°C to 85°C Temperature Range General Description The AAT2687 provides two independently regulated DC outputs; consisting of a high voltage step-down regulator and a low input voltage low dropout (LDO) regulator. The PMIC is optimized for low-cost 12V adapter inputs, making the device the ideal system-on-a-chip power solution for consumer communications equipment. Channel 1 is a step-down regulator with an input voltage range 6.0 to 24V, providing up to 4.5A output current. 490kHz fixed switching frequency allows small L/C filtering components. Channel 1 utilizes voltage mode control configured for optimum performance across the entire output voltage and load range. Channel 2 is a low-dropout (LDO) regulator providing up to 600mA output current. The device provide...