ISL8540 Description
® ISL8540 Data Sheet September 9, 2008 FN6495.5 DC/DC Power Switching Regulator The ISL8540 is a step down DC/DC power switching regulator which accepts 9.0V to 40V input and provides a 2A output current. The output voltage can be set in the range between 1.21V and 35V by means of an external divider. The device uses an internal power DMOS transistor with a typical rDS(ON) of 0.19Ω to obtain very high efficiency and...
ISL8540 Key Features
- Voltage feedforward mode
- Step down DC/DC supporting up to 2A
- Input voltage range of 9.0V to 40V
- Internal reference of 1.21V ±1%
- Adjustable output voltage range of 1.21V to 35V
- Adjustable switching frequency 100kHz to 600kHz
- Frequency SYNC pin
- Zero load current operation
- Pulse-by-pulse mode current limit and Hiccup mode
- Low standby current of 60µA typical