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AP1635 Datasheet(PDF) 1 Page - Diodes Incorporated |
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AP1635 Datasheet(HTML) 1 Page - Diodes Incorporated |
1 / 8 page AP1635 PWM/PFM DUAL MODE STEP-DOWN DC/DC CONVERTER AP1635 Rev. 4 1 of 8 FEBRUARY 2009 www.diodes.com © Diodes Incorporated Lead-free • Input voltage range: 2.2V~5V (VOUT type) • Oscillator frequency: 700KHz (Typ.) • Internal reference: 1.0V (Typ.) • High efficiency: 93% (Typ.) • Current limit and thermal shutdown protection • Lead Free Package: SOP-8L • SOP-8L: Available in “Green” Molding Compound (No Br, Sb) • Lead Free Finish/ RoHS Compliant (Note 1) The AP1635 series are multi-functional step-down DC/DC converters with built-in speed, low ON resistance drivers. It is capable to deliver more than 1.2A output current with external coil, diode and capacitor. Output voltage is set-up by the external resistors. (±2.5% accuracy). The 700KHz AP1635 that can work out with small value external components comes out more compact board. The device switches to and works under PFM mode with light loads. It keeps at high efficiency for both light loads and large output current. AP1635 can be soft-start with a proper capacitor connected between CE/SS pin and ground. The stand-by current is less than 6uA when CE/SS pin is at “LOW” status. The device is forced to switch off as the voltage at that pin is lower than the stipulated voltage. Applications • Electronic Information Organizers • Palmtops • Cellular and portable phones • Portable Audio Systems • Various Multi-function Power Supplies Ordering Information AP 1635 S X - 13 Package Packing Lead Free 13 : Tape & Reel G : Green S : SOP-8L L : Lead Free Device Package Code Packaging (Note 2) 13” Tape and Reel Quantity Part Number Suffix AP1635SL-13 S SOP-8L 2500/Tape & Reel -13 AP1635SG-13 S SOP-8L 2500/Tape & Reel -13 Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. Features General Description |
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