FTM Board Club
Exar
XRP6668EVB
1A/1A Dual Channel 1.5MHz Synchronous Step-Down Regulator Evaluation Board

The XRP6668 is a dual channel synchronous current mode PWM step down (buck) converter capable of delivering up to 1 Amp of current per channel and optimized for portable battery-operated operations.

Based on a current mode 1.5MHz constant frequency PWM control scheme, the devices reduce the overall component count and solution footprint as well as provide a low output voltage ripple and excellent line and load regulation. Both devices also implement a PFM mode to improve light load efficiency as well as a 100% duty cycle LDO mode. Output voltage is adjustable to as low as 0.6V with better than 3% accuracy while a low quiescent current supports the most stringent battery operation conditions. Built-in over temperature and under voltage lock-out protections insure safe operations under abnormal operating conditions.

Features

• Dual Channel Step-Down Regulators

• Guanranteed 1A/1A Output Current
◦Input Voltage : 2.5v to 5.5v

• 1.5MHz PWM Current Mode Control
◦PFM Mode Operations at Light Load
◦100% Duty Cycle LDO Mode Operations

• Low as o.6V Adjustable Output Voltage

• Internal Compensation Network

• 15ľA Quiescent Current

• Over Temperature & UVLO Protections

• RoHS Compliant "Green"/Halogen Free 8-Pin SOIC Package