Renesas | ISL8022IRZ

The ISL8022IRZ is a High efficiency and dual synchronous step-down DC/DC regulator that can deliver up to 2A/1.7A continuous output current per channel. The channels are 180° out-of-phase for input RMS current and EMI reduction.

The supply voltage range of 2.8 V to 5.5 V allows the use of a single Li+ cell, three NiMH cells or a regulated 5 V input. The current mode control architecture enables very low duty cycle operation at high frequency with fast transient response and excellent loop stability.

Features:

• Dual 2 A/1.7 A High Efficiency Synchronous Buck Regulator with up to 97% Efficiency, Low iq (40 µA)
  180° Out-of-Phase
• Start-up with Pre-biased Output
• Selectable Forced PWM Mode and PFM Mode
• External Synchronization up to 8 MHz
• Negative Current Detection and Protection
• 100% Maximum Duty Cycle for Lowest Dropout
• Internal Current Mode Compensation
• Peak Current Limiting, Hiccup Mode Short Circuit Protection and Over-Temperature Protection
• Pb-Free (RoHs Compliant)

Applications:

• DC/DC POL Modules
• µC/µP, FPGA and DSP Power
• Plug-in DC/DC Modules for Routers and Switchers
• Test and Measurement Systems
• Li-ion Battery Powered Devices
• Bar Code Readers