AP3403FLJ-7

PART OBSOLETE - NO ALTERNATE PART A Product Line of Diodes Incorporated AP3403 600mA STEP-DOWN DC/DC CONVERTER WITH SYNCHRONOUS RECTIFIER OBSOLETE – PART DISCONTINUED Description Pin Assignments The AP3403 is a 2.0MHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 600mA load with high efficiency, excellent line and load regulation. The high efficiency is easily configured by using an inductor, resistors and capacitors as the external components. Current mode control provides fast transient response and cycle-by-cycle current limit. (Top View) Pin 1 Mark The AP3403 employs complete protection to ensure system security, including input Under Voltage Lock Out, Over Temperature Protection and hiccup mode Short Circuit Protection. This IC is available in U-DFN1616-6 package. Features              High Efficiency Buck Power Converter Input Voltage Range: 2.3V to 5.5V Output Voltage Range: 0.7V to 5.5V Fixed 2.0MHz Oscillator Frequency Built-in Soft-start Time Built-in Over Current Protection Built-in Thermal Shutdown Function Built-in UVLO Function Hiccup Mode SCP Output Current: 600mA Package: U-DFN1616-6 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: EN 1 AGND 2 PGND 3 EP 6 FB 5 VIN 4 SW U-DFN1616-6 (Type G) Applications   Post DC-DC Voltage Regulation PDA and Notebook Computer 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain