Microchip | MIC2230-GFHYML-TR

The MIC2230-GFHYML TR is dual output, high-efficiency synchronous step-down DC/DC converter. The MIC2230 is ideally suited for portable systems which demand high power conversion efficiencies and fast transient performance, while offered in a very small package. 

The MIC2230 features a selectable mode that allows the user to trade-off lowest noise performance for low power efficiency. Trickle Mode TM operation provides ultra-high efficiency at light loads, while PWM operation provides very low ripple noise performance. To maximize battery life in low-dropout conditions, MIC2230 can operate with a maximum duty cycle of 100%.

Features:

• High Efficiency: Over 96%
• Ultra-low quiescent current: Only 28 µA
• Ultra-low shutdown current less than 1 µA
• Fast transient performance
• 2.5 MHz PWM operation
• High output current capability per channel: 800 mA
• No Schottky Diodes Required
• Stable with 2.2 µH inductor, 10µF ceramic capacitor
• Adjustable output voltage down to 0.8 V
• Built-in soft-start circuitry
• Current limit protection
• Automatic switching into light load mode operation
• FPWM pin allows low noise all-PWM mode operation  
• Small Thermally Enhanced 3 mm × 3 mm MLF ® package

Applications:

• Cellular phones
• PDAs
• Digital cameras
• PC Cards
• Wireless and DSL Modems