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ILC6390/91
SOT-89 Step-Up PFM Switcher with Auto-Load Sense
Features
• • • • • 85% conversion efficiency at 50mA out Start-up voltages as low as 900mV ±2.
5% accurate outputs Complete switch design with only 3 external components Automatically senses load variations to select the optimal duty cycle and extend conversion efficiency over a wide range • External
transistor configuration to run as switcher controller • Shutdown to 0.
5µA
Description
50 mA boost converter using Pulse Frequency Modulation, or PFM, technique, in 5-lead SOT-89 or a 5-lead SOT-23 package.
Only 3 external components are needed to complete the switcher design.
The ILC6390 auto...