AP3417CKTR-G1

AP3417C 1.5MHz SYNCHRONOUS STEP-DOWN DC-DC CONVERTER Description Pin Assignments NEW PRODUCT The AP3417C is a high efficiency step-down DC-DC voltage converter. The chip operation is optimized by peak-current mode architecture with built-in synchronous power MOSFET switchers. The oscillator and timing capacitors are all built-in providing an internal switching frequency of 1.5MHz that allows the use of small surface mount inductors and capacitors for portable product implementations. (Top View) (Top View) Pin 1 Mark EN 1 GND 2 LX 3 Integrated Soft Start (SS), Under Voltage Lock Out (UVLO), Thermal Shutdown Detection (TSD) and Short Circuit Protection are designed to provide reliable product applications. 5 4 FB VIN SOT-23-5 The device is available in adjustable output voltage version ranging from 0.6V to 0.9×VIN when input voltage range is from 2.5V to 5.5V, NC 1 EN 2 VIN 3 EP 6 FB 5 GND 4 LX W-DFN2020-6 (Type US) and is able to deliver up to 1A. Applications The AP3417C is available in SOT-23-5 and W-DFN2020-6 (Type US) packages.   Post DC-DC Voltage Regulation PDA and Notebook Computer Features     High Efficiency Buck Power Converter Wide Input Voltage Range: 2.5V to 5.5V Adjustable Output Voltage: 0.6V to 0.9×VIN Low RDS(ON) Internal Switches: 200m (VIN = 5V)            Built-in Power Switches for Synchronous Rectification with High Efficiency Output Current: 1.0A Feedback Voltage: 600mV 1.5MHz Constant Frequency Operation Thermal Shutdown Protection Low Dropout Operation at 100% Duty Cycle No Schottky Diode Required Input Over Voltage Protection Output Over Voltage Protection Over Current Protection 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