SupIRBuck™ Point-of-Load Voltage Regulators in a Compact 4x5 mm Package PRESS RELEASE DATA SHEETS HI-RES GRAPHIC Features • Greater than 96% peak efficiency • Pin compatible solutions for 4A, 6A and 9A • Wide input voltage range 1.5V to 21V (with 5V Bias) • Wide output voltage range 0.7V to 90% of the input voltage • Integrated bootstrap diode, cont FET and Sync FETKY • High bandwidth E/A for excellent transient performance • Programmable frequency up to 1.5MHz • ±1% accurate 0.7V reference voltage in 0- 125C temp range • Programmable hiccup current limit • Programmable soft start • Enhanced pre-bias start up • Thermal protection • Enable pin with voltage monitoring capability • Power Good output for Over-voltage and Under-voltage detection • Sequencing for simultaneous power-up/down of different rails • Over Voltage Protection • Optional output voltage monitoring input for adjustable PGOOD and OVP threshold setting • External synchronization SuPIRBuck™ PAGE The IR3853, IR3856 and IR3859 SupIRBuck voltage regulators integrate a high performance controller with latest generation MOSFETs in a slim 4 x 5 mm PQFN package and deliver 4A, 6A and 9A output current respectively to achieve more than 96 percent peak efficiency. The devices, tailored for energy- efficient server, storage, telecom, Netcom and set-top box applications offer the same efficiency and functionality as previous generation devices in a 33 percent smaller footprint. New features include Over Voltage Protection (OVP), external synchronization and optional output voltage monitoring input for adjustable PGOOD and OVP threshold setting. Advantages • The three new devices eliminate the need for traditional dual stage POL conversion and save energy and cost by operating directly from 12 V in . • While optimized for 12V input voltage, superior efficiencies are also achieved in applications with 5V input voltages. • As a result of programmable switching frequencies up to 1.5 MHz and small 4 x 5 mm footprint, the new voltage regulators shrink size and cost, in addition to achieving higher power density. • The common footprint of the devices provides design flexibility and allows cut-and-paste layout for fast time- to-market. • Excellent package thermal properties and low height allows November 2010 ON-LINE DESIGN TOOL

SupIRBuck ™ Point-of-Load Voltage Regulators in a Compact 4x5 mm Package

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SupIRBuck ™ Point-of-Load Voltage Regulators in a Compact 4x5 mm Package. PRESS RELEASE. DATA SHEETS. - PowerPoint PPT Presentation

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SupIRBuck™ Point-of-Load Voltage Regulators in a Compact 4x5 mm Package

PRESS RELEASE

DATA SHEETS

HI-RES GRAPHIC

Features• Greater than 96% peak efficiency• Pin compatible solutions for 4A, 6A and 9A• Wide input voltage range 1.5V to 21V (with 5V Bias)• Wide output voltage range 0.7V to 90% of the input voltage• Integrated bootstrap diode, cont FET and Sync FETKY• High bandwidth E/A for excellent transient performance• Programmable frequency up to 1.5MHz• ±1% accurate 0.7V reference voltage in 0-125C temp

range• Programmable hiccup current limit• Programmable soft start• Enhanced pre-bias start up• Thermal protection• Enable pin with voltage monitoring capability• Power Good output for Over-voltage and Under-voltage

detection• Sequencing for simultaneous power-up/down of different

rails• Over Voltage Protection• Optional output voltage monitoring input for adjustable

PGOOD and OVP threshold setting• External synchronization• -40C to 125C operating junction temp (Tj)• Halogen free, lead free and RoHS compliant

SuPIRBuck™ PAGE

The IR3853, IR3856 and IR3859 SupIRBuck voltage regulators integrate a high performance controller with latest generation MOSFETs in a slim 4 x 5 mm PQFN package and deliver 4A, 6A and 9A output current respectively to achieve more than 96 percent peak efficiency. The devices, tailored for energy-efficient server, storage, telecom, Netcom and set-top box applications offer the same efficiency and functionality as previous generation devices in a 33 percent smaller footprint. New features include Over Voltage Protection (OVP), external synchronization and optional output voltage monitoring input for adjustable PGOOD and OVP threshold setting.

Advantages• The three new devices eliminate the need for traditional dual stage POL

conversion and save energy and cost by operating directly from 12 V in.• While optimized for 12V input voltage, superior efficiencies are also achieved

in applications with 5V input voltages.• As a result of programmable switching frequencies up to 1.5 MHz and small 4

x 5 mm footprint, the new voltage regulators shrink size and cost, in addition to achieving higher power density.

• The common footprint of the devices provides design flexibility and allows cut-and-paste layout for fast time-to-market.

• Excellent package thermal properties and low height allows back-side board mounting for additional space savings.

November 2010

ON-LINE DESIGN TOOL