AP3409ADNTR-G1

AP3409/A PART OBSOLETE – CONTACT US 3A, 4MHz HIGH EFFICIENCY SYNCHRONOUS BUCK CONVERTER OBSOLETE – PART DISCONTINUED Description Pin Assignments (Top View) The AP3409/A is a current mode, PWM synchronous buck DC/DC converter, capable of driving a 3A load with high efficiency, excellent line and load regulation. It operates in continuous PWM mode. Pin 1 Mark The AP3409/A integrates synchronous P-channel and N-channel power MOSFET switches with low on-resistance. It is ideal for portable applications powered from a single Li-ion battery. 100% duty cycle and low on-resistance P-channel internal power MOSFET can maximize the battery life. The switching frequency of AP3409/A can be programmable from 300kHz to 4MHz, which allows small-sized components, such as capacitors and inductors. A standard series of inductors from several different manufacturers are available. This feature greatly simplifies the design of switch-mode power supplies. SHDN/RT 1 GND 2 SW 3 SW 4 PGND 5 Notes: 9 FB 8 VDD 7 PVDD 6 PVDD (Top View) Pin 1 Mark Features Input Voltage Range: 2.6V to 5.5V Adjustable Output from 0.8V to 5V 0.8V Reference Voltage with ± 2% Precision Output Current: 3A High Efficiency up to 95% Low RDSON Internal Switches Programmable Frequency: 300kHz to 4MHz Current Mode Control Forced Continuous-mode Operation 100% Duty Cycle Built-in Soft-start Built-in Short Circuit Protection Built-in Thermal Shutdown Protection Built-in Current Limit Function PGOOD Output Voltage Monitoring (For AP3409A) U-DFN3030-10 package Totally Lead-free & Fully RoHS Compliant (Note 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Exposed Pad Connected to PGND COMP U-DFN3030-10 (DN Package) For AP3409 The AP3409/A is available in U-DFN3030-10 package. • • • • • • • • • • • • • • • • • • 10 SHDN/RT 1 GND 2 SW 3 SW 4 PGND 5 10 Exposed Pad Connected to PGND COMP 9 FB 8 PGOOD 7 VDD 6 PVDD U-DFN3030-10 (DN Package) For AP3409A Applications • • • Portable Media Player Digital Still and Video Cameras Notebook 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