概览
描述
The ISL6440EVAL1Z evaluation board highlights the operation of the ISL6440 300kHz dual, 180° out-of-phase, step-down pulse width modulation (PWM) controller in an embedded DC/DC converter application. The ISL6440 is a high performance triple-output controller that offers control and protection features for two synchronous buck PWMs.
特性
- Wide input supply voltage range: 5.6V to 24V, 4.5V to 5.6V
- Two independently programmable output voltages
- Switching frequency 300kHz
- Out-of-phase PWM controller operation: Reduces required input capacitance and power supply induced loads
- No external current sense resistor: Uses lower MOSFET's rDS(ON)
- Programmable soft-start
- Extensive circuit protection functions: PGOOD, UVLO, overcurrent, over-temperature, independent shutdown for both PWMs
- Excellent dynamic response: Voltage feed-forward with current mode Control
