AP3405SHE-7

AP3405 PART OBSOLETE – CONTACT US 600mA BUCK DCDC CONVERTER WITH SYNCHRONOUS RECTIFIER  OBSOLETE – PART DISCONTINUED Description Pin Assignments The AP3405 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 NC 1 8 EN 7 FB The AP3405 employs complete protection to ensure system security, including input Undervoltage Lockout, Over-Temperature Protection and hiccup mode Short Circuit Protection. NC 2 AGND 3 6 VIN This IC is available in U-DFN2020-8 package. PGND 4 5 SW EP U-DFN2020-8 (Type E) Features Applications • High-Efficiency Buck Power Converter • Post DC-DC Voltage Regulation • Input Voltage Range: 2.3V to 5.5V • Mobile Phones and Wearable Devices • Output Voltage Range: 0.7V to 5.5V • Fixed 2.0MHz Oscillator Frequency • Built-in Soft-Start Time • Built-in Overcurrent Protection • Built-in Thermal Shutdown Function • Built-in UVLO Function • Hiccup Mode SCP • Output Current: 600mA • Package: U-DFN2020-8 (Type E) • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) • Halogen and Antimony Free. “Green” Device (Note 3) Notes: 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