1. 60 Amp Rated IR3550 PowIRstage® Achieve Highest Current in Smallest Form Factor
PRESS RELEASE
DATA SHEETS
The new IR3550 PowIRStage® solution integrates a high performance synchronous buck gate driver, IR’s latest generation control and synchronous MOSFETs featuring extremely low on-state resistance (RDS(on)) and gate charge, and a Schottky diode into a high density, low profile 6mm x 6mm x 0.9mm PQFN package.
HI-RES GRAPHIC
PowIRStage®
Features
Output current capability of 60A
Peak efficiency up to 95% at .12VOUT
Input voltage range of 4.5V to 14V
Output voltage range of 0.25V to 3.3V
Operation up to 1MHz
High density, fully integrated solution
High performance synchronous buck gate driver
IR’s latest generation low RDS(on) and gate charge control & synchronous MOSFETs
Schottky diode
Internal components, layout & packaging optimized for best system-level electrical & thermal performance
Integrated current sense amplifier offering superior current sense accuracy
MOSFET fault and thermal protection
Body braking for improved transient response
Up to 3.8% efficiency improvements
Advantages
Superior performance compared to alternative power stage solutions, achieving up to a 3.8% improvement in electrical efficiency.
Simplifies the design & implementation of high-current, high-performance multi-phase buck regulators versus traditional discrete designs and alternative power stage solutions.
Compatible with most analog and digital controllers available on the market today, providing the designer the flexibility to select the PWM controller of preference.
Featuring an integrated current sense amplifier that achieves superior accuracy and signal-to-noise ratios compared to alternate controller based inductor DCR sensing techniques.
Achieves industry best peak and Thermal Design Current (TDC) electrical efficiencies.
High switching frequency capability allows for the miniaturization of output inductors and input and output capacitors to help reduce overall solution size.
March 2011