Product News

Synchronous Buck Regulator with Output Tracking and Sequencing for FPGAs and Microprocessors

Intersil Corp. recently announced the availability of the ISL8002B synchronous buck (step-down) switching regulator, which delivers up to 2 A of continuous output current from a 2.7- to 5.5-V input supply. Its 2-MHz switching frequency provides superior transient response, and its key features—including programmable soft-start and output tracking and sequencing of FPGAs and microprocessors—increase system reliability for point-of load conversions in networking, factory automation, instrumentation, and medical equipment.Intersil ISL8002B

The ISL8002B enables greater system reliability through several innovative features. For example, the regulator’s output tracking and sequencing of FPGAs and MPUs ensures sensitive multi-rails properly start up and shutdown. In addition, its output rails are configurable for coincidental, ratio metric, or sequential settings, ensuring the FPGA or MPU’s internal ESD diodes are not biased or overstressed during rising or falling outputs. The ISL8002B’s undervoltage lockout and several other protection/stability features protect the system from damage from unwanted electrical fault events. And its unique negative current protection prevents switch failure.

The ISL8002B’s superior transient response and high level of integration enable a complete synchronous step-down DC/DC converter solution in less than a 0.10 in2 footprint. By integrating low RDS(ON) high-side PMOS and low-side NMOS MOSFETs, the buck regulator eliminates the need for a bootstrap capacitor and diode. Its high efficiency enables the use of small inductors to further reduce board space.

Features and specifications:

  • Dimensions: 2 mm × 2 mm
  • Output tracking and sequencing
  • Switching at high frequency, 2 MHz
  • High peak efficiency: up to 95%
  • Wide input voltage range: 2.7 to 5.5 V
  • Maximum output current: 2A
  • Under voltage lockout, overvoltage protection
  • Selectable PFM or PWM operation
  • Over current, short-circuit protection
  • Over temperature/thermal protection

The ISL8002B synchronous buck regulator is available in a 2 mm  × 2 mm, eight-pin TDFN package. It costs $1 in 1,000-piece quantities. The ISL8002B DEMO1Z demonstration board is available for $23.

Source: Intersil Corp.

— ADVERTISMENT—

Advertise Here

 

 

Keep up-to-date with our FREE Weekly Newsletter!

Don't miss out on upcoming issues of Circuit Cellar.


Note: We’ve made the Dec 2022 issue of Circuit Cellar available as a free sample issue. In it, you’ll find a rich variety of the kinds of articles and information that exemplify a typical issue of the current magazine.

Would you like to write for Circuit Cellar? We are always accepting articles/posts from the technical community. Get in touch with us and let's discuss your ideas.

Sponsor this Article
Website | + posts

Circuit Cellar's editorial team comprises professional engineers, technical editors, and digital media specialists. You can reach the Editorial Department at editorial@circuitcellar.com, @circuitcellar, and facebook.com/circuitcellar

Supporting Companies

Upcoming Events


Copyright © KCK Media Corp.
All Rights Reserved

Copyright © 2023 KCK Media Corp.

Synchronous Buck Regulator with Output Tracking and Sequencing fo…

by Circuit Cellar Staff time to read: 1 min