Synchronous buck switching regulator

The ISL8002B synchronous buck switching regulator from Intersil delivers an output of up to 2A from an input supply ranging from 2.7V to 5.5V. With a switching frequency of 2MHz, the part is said to offer superior transient response, while key features such as programmable soft start and output tracking and sequencing of FPGAs and microprocessors, increase system reliability for point of load conversion.

The ISL8002B synchronous buck switching regulator from Intersil delivers an output of up to 2A from an input supply ranging from 2.7V to 5.5V. With a switching frequency of 2MHz, the part is said to offer superior transient response, while key features such as programmable soft start and output tracking and sequencing of FPGAs and microprocessors, increase system reliability for point of load conversion.

Output tracking and sequencing of FPGAs and MPUs ensures sensitive multiple rails start up and shut down properly. In addition, the output rails are configurable for coincidental, ratiometric or sequential settings. Undervoltage lockout and other protection and stability features safeguard the system from damage when faults happen. Meanwhile, negative current protection prevents switch failure.

Supplied in a package measuring 2 x 2mm, the ISL8002B integrates low RDS(ON) high side PMOS and low side NMOS MOSFETs, eliminating the need for a bootstrap capacitor and diode, while its high efficiency allows the use of smaller inductors.