Full PDF Text Transcription for AIC1639 (Reference)
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AIC1639. For precise diagrams, and layout, please refer to the original PDF.
AIC1639 3-PIN ONE-CELL STEP-UP DC/DC CONVERTER SPEC NO: DS-1639-00 05/26/00 ¡½ FEATURES l l l l l l l l ¡½ DESCRIPTION The AIC1639 is a high efficiency step-up DC/DC conv...
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l l ¡½ DESCRIPTION The AIC1639 is a high efficiency step-up DC/DC converter for applications using 1 to 4 battery cells. Only three external components are required to d eliver a fixed output voltage of 2.7, 3.0V, 3.3V, or 5V. The AIC1639 starts up from below 0.9V input with 1mA load. Pulse Frequency Modulation scheme brings optimized performance for applications with light output loading and low input voltages. The output ripple and noise are lower compared with the circuits operating in PSM mode. The PFM control circuit operating in 100KHz (max.) switching rate results in smaller passive components.
AIC1639 Datasheet
