The ISL78208 is a dual standard buck regulator capable of 3A

per channel with continuous output current. With an input

range of 4.5V to 28V, it provides a high frequency power

solution for a variety of point of load applications.

The PWM controller in the ISL78208 drives an internal

switching N-Channel power MOSFET and requires an external

Schottky diode to generate the output voltage. The integrated

power switch is optimized for excellent thermal performance

up to 3A of output current. The PWM regulator switches at a

default frequency of 500kHz and it can be user programmed

or synchronized from 300kHz to 2MHz. The ISL78208 utilizes

peak current mode control to provide flexibility in component

selection and minimize solution size. The protection features

include overcurrent, UVLO and thermal overload protection.

The ISL78208 is available in 5mmx5mm 32 Ld Wettable

Flank Quad Flat Pb-free (WFQFN) package.

The ISL78208 is rated for the automotive temperature range

(-40°C to +105°C).

Features

• Wide input voltage range from 4.5V to 28V

• Adjustable output voltage with continuous output current up

to 3A

• Current mode control

• Adjustable switching frequency from 300kHz to 2MHz

• Independent power-good detection

• Selectable In-phase or out-of-phase PWM operation

• Independent, sequential, ratiometric or absolute tracking

between outputs

• Internal 2ms Soft-start time

• Overcurrent/short circuit protection, thermal overload

protection, UVLO

• Boot undervoltage detection

• Qualified for automotive applications

• Pb-Free (RoHS compliant)

Applications

• DSP and embedded processor power supply

• Infotainment system power